Composti e classi

• Accurately identify and quantify pesticide residues by GC-MS/MS in fruits, vegetables, botanicals, and herbals such as tea, ginseng, ginger, echinacea, and dietary supplements.
• Comprehensive 203-compound kit covers food safety lists by the FDA, USDA, and other global governmental agencies; individual ampuls also sold separately.

• Accurately detect and quantify pesticides of global food safety concern in a wide range of fruits, vegetables, and other commodities by LC-MS/MS.
• Full kit contains 204 compounds of interest, covering many LC-determined pesticides listed by government agencies; individual ampuls also sold separately.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Developed specifically for EPA Method 525.3.
• Formulated to provide maximum stability in concentrations convenient for dilution.
• Simplifies and speeds up standard preparation.
• Quantitatively tested to confirm composition; detailed support documentation provided.

• Contains 75 compounds in one convenient ampul for the analysis of VOCs in solid waste.
• Quantitatively analyzed to confirm concentration and identity of each compound.
• Excludes pentachloroethane for labs experiencing elevated tetrachloroethene response caused by pentachloroethane breakdown.

• Full 82-component EPA 524.3 list using as few as three ampuls—reduce prep time and chances for error or contamination.
• EPA 524.3 VOA MegaMix ampul includes oxygenates group—no need to order separately.
• Volatile gases prepared separately—replace shorter-life components without wasting money on full list.
• Two options for internal and surrogate standards—separate or combined mix.
• Also ideal for surface water and groundwater testing.

Contains 1 mL each of these mixtures.
31903: CLP 04.1 B/N MegaMix Standard, Revision 2
31902: CLP/SVOA Additions Mix

Contains 1 mL each of these mixtures.
31900: SOM01.1 SVOA MegaMix Standard, Revised
31902: CLP/SVOA Additions Mix

Contains 1 mL each of these mixtures.
30632: CLP VOA CAL2000 MegaMix Standard
30216: vinyl acetate

Contains 1 mL each of these mixtures.
30633: 8260 MegaMix Calibration Mix
30265: 2-chlorethyl vinyl ether

• Fewest mixtures needed for calibration and matrix spikes.
• Mixtures formulated for maximum stability.
• Contains most routinely analyzed compounds.

• Contains 76 compounds in one convenient ampul for the analysis of VOCs in solid waste.
• Quantitatively analyzed to confirm concentration and identity of each compound.

• MegaMix mixture includes all target compounds not in our current products.
• Incorporates all phenols, for fast preparation and calibration.
• Incorporates "additional" extractable Method 625 compounds.

Includes all target analytes except the six gases, which are available separately as 502.2 Calibration Mix #1.

• Indicato per un' ampio range di sistemi di indice di ritenzione.
• Materiale di riferimento certificato (CRM)stabile ed accurato.
• Analizzato qualitativamente per confermarne la composizione; certificato disponibile per ogni lotto di CRM.

• Formulated to contain the 16 major European Food Safety Authority (EFSA) PAH compounds.
• High concentration (100 μg/mL) solution provides value and flexibility. Dilute as needed for fortification and calibration mixes.
• Low-volatility toluene solvent provides longer shelf life, which helps ensure more accurate results.
• Broad solvent miscibility—compatible with acetonitrile, the QuEChERS solvent.

• European Food Safety Authority (EFSA) PAH4 compounds prepared in toluene solvent.
• High 1,000 µg/mL concentration—dilute as needed to economically prepare custom mixes.
• Low volatility—longer shelf life and more accurate results.
• High miscibility—compatible with QuEChERS solvents.

• Contains the seven hormones listed in EPA Method 539 at concentrations suited for Unregulated Contaminant Monitoring Rule 3 (UCMR3) screening.
• Ideal for the analysis of finished drinking water as outlined in UCMR3, which requires monitoring of all public drinking water systems with 10,000 or more customers.

Note: Cat. #s 32463–32468 are dissolved in acetone and replace cat. #s 32219–32224, which were dissolved in methanol.

Note: Cat. #s 32463–32468 are dissolved in acetone and replace cat. #s 32219–32224, which were dissolved in methanol.

Note: Cat. #s 32463–32468 are dissolved in acetone and replace cat. #s 32219–32224, which were dissolved in methanol.

Note: Cat. #s 32463–32468 are dissolved in acetone and replace cat. #s 32219–32224, which were dissolved in methanol.

Note: Cat. #s 32463–32468 are dissolved in acetone and replace cat. #s 32219–32224, which were dissolved in methanol.

Note: Methapyrilene is not included in this revised standard.

• Contains the seven hormones listed in EPA Method 539 at the appropriate concentrations.

Note that 1,2-diphenylhydrazine is an unstable compound that will oxidize to azobenzene, thereby decreasing the concentration of 1,2-diphenylhydrazine over time. For accurate calibration results, it is recommended that the concentrations of 1,2-diphenylhydrazine and azobenzene be combined.

This product has a limited shelf life. We recommend that you order only the ampul quantity that meets your immediate needs.

Note: Store standards under frozen conditions (0 °C or colder). We recommend you store ampuls lying flat (horizontally) to prevent breakage. For best results, thaw the contents of the ampul fully and shake the ampul well before opening and using the solution.

To ensure the highest quality explosives standards, Restek chemists carefully purify or synthesize all of the compounds listed in EPA Method 8330.

ASTM D5836 and OSHA 42 are test methods for determining 2,4-toluene diisocyanate (2,4-TDI) and 2,6-TDI in the workplace atmosphere. OSHA 47 is for 4,4'-methylenediphenyl isocyanate (4,4'-MDI) in indoor air, and NIOSH Method 5522 is for 2,4-TDI; 2,6-TDI; 4,4'-MDI; and 1,6-hexamethylene diisocyanate (1,6-HDI) in air. Restek offers the 1,-(2-pyridyl)piperzine (1-2pp) derivative.

• Toxaphene standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

The biodiesel component is methyl soyate.

• For GC analysis of total petroleum hydrocarbons (TPH) in water.
• Environmentally safer than previous methods.
• Calibration standard available as diesel #2/motor oil and diesel #2/mineral oil.

• For GC analysis of total petroleum hydrocarbons (TPH) in water.
• Calibration standard available as diesel #2/motor oil and diesel #2/mineral oil.

Contains 1 mL each of these mixtures.
32406: Minnesota Ag List Pesticides Mix A
32407: Minnesota Ag List Pesticides Mix B

• For GC analysis of total petroleum hydrocarbons (TPH) in water.
• Environmentally safer than previous methods.
• Calibration standard available as diesel #2/motor oil and diesel #2/mineral oil.

• Updated reference materials for GC analysis of TPH in water.
• Determination of hydrocarbon oil index—applicable to drinking, surface, waste, and treated water.

• Meets CCME 2001 Petroleum Hydrocarbons in Soil Method—Tier 1.
• Primary reference calibration standards for quantification of four fractions.

• Meets CCME 2001 Petroleum Hydrocarbons in Soil Method—Tier 1.
• Primary reference calibration standards for quantification of four fractions.

Complete data pack available for audit compliance.

Complete data pack available for audit compliance.

Complete data pack available for audit compliance.

Complete data pack available for audit compliance.

Complete data pack available for audit compliance.

Complete data pack available for audit compliance.

Contiene 1 mL di ogni mix alla concentrazione di 5000 μg/mL in cloruro di metilene (diclorometano).
31233: Diesel Fuel #2 Standard
31234: Diesel Fuel #2 Standard: 25% Weathered
31235: Diesel Fuel #2 Standard: 50% Weathered
31236: Diesel Fuel #2 Standard: 75% Weathered

Contains 1 mL each of these mixtures.
31229: Kerosene Standard
31230: Kerosene Standard: 25% Weathered
31231: Kerosene Standard: 50% Weathered
31232: Kerosene Standard: 75% Weathered

Contains 1 mL each of these mixtures.
30096: Unleaded Gasoline Standard
30097: Unleaded Gasoline Standard: 25% Weathered
30098: Unleaded Gasoline Standard: 50% Weathered
30099: Unleaded Gasoline Standard: 75% Weathered
30436: Unleaded Gasoline Standard: 99% Weathered

There are four general types of mineral spirits, classified according to boiling point range (BPR):

• Type I (Stoddard solvent), BPR 149–182 °C
• Type II (high flash point), BPR 177–196 °C
• Type III (odorless), BPR 149–196 °C
• Type IV (low dry point), BPR 149–174 °C
  
  This standard is manufactured using the Type 1 mineral spirit.
  
  Note: Cat.#s 31260 and 31261 are produced with CAS# 64475-85-0, a Type 1 Mineral Spirit containing the proper ratio of n-alkanes (higher proportion) and isoparaffins/cycloalkanes (lower proportion). Lots produced prior to March 2017 contained CAS# 8030-30-6, a C10-C13 isoparaffins odorless Mineral Spirit with >98% isoparaffins (branched alkanes/aromatics) and minimal n-alkanes.

Preparato da un prodotto a sorgente singola (una raffineria). I materiali esposti all'aria (weathered) indicano la perdita di peso percentuale rispetto al materiale di origine.

Prepared from a single source (one refinery) product. The weathered materials indicate the percent weight loss from the original material.

Prepared from a single source (one refinery) product. The weathered materials indicate the percent weight loss from the original material.

• For current Massachusetts VPH method: surrogate included.
• Matrix spike mix at 50µg/mL, per updated method.

• Standard for current Massachusetts VPH method: surrogate included.
• More analyses per ampul—standard with surrogate is 10,000µg/mL.

For monitoring samples suspected of gasoline contamination, Los Angeles County requires laboratories to calibrate and report these compounds.

• Confirm unleaded gasoline TPH, BTEX, and aromatics in a single analysis.
• Certificate of Analysis includes concentration of TPH, and certified concentrations of BTEX and individual aromatics.
• Complete data pack available.

We offer this certified reference material for those who need to calibrate Stoddard solvent separately. This standard is dissolved in methanol for analysis by either direct injection or purge and trap.

Subsurface degradation of fuel oil spills can be estimated by examining the ratios of C17/pristane and C18/phytane.¹ To assist in identifying these four compounds from the complex fuel oil analysis, we offer a product that contains these compounds for retention time determination.

Preparato da un prodotto a sorgente singola (una raffineria).

Prepared from a single-source (one-refinery) product.

Prepared from a single-source (one-refinery) product.

• For total petroleum hydrocarbon pattern recognition of hydraulic oil.
• High concentration—50,000 µg/mL in methylene chloride.

Creosote oil is a coal tar derived distillate.

• For total petroleum hydrocarbon pattern recognition of creosote oil.
• High concentration—50,000 µg/mL in methylene chloride.

100-octane, low-lead fuel used in piston-type aircraft.

A high-viscosity residual type of heavy fuel oil requiring preheating to 104–127 °C. This material is also known as residual fuel oil (RFO) or Bunker C.

Fuel oil #4 is typically used in limited applications in which the fuel cannot be preheated prior to burning. The fuel is a blend of distillate (fuel oil #2) and residual (fuel oil #6).

• Prepared from an equal-volume blend from five gasoline-powered vehicles (belonging to Restek employees). After blending, a precisely weighed amount of the composite is added to a volumetric flask to produce the standard.
• Motor oil standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Prepared from an equal-volume blend of 5W30, 10W30, 10W40, and 20W50 motor oils. After blending, a precisely weighed amount of the composite is added to a volumetric flask to produce the standard.
• Motor oil standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Kerosene composite standards are comprised of three separate sources blended in equal portions.
• Kerosene standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Diesel Fuel composite standards are comprised of three separate sources blended in equal portions.
• Diesel Fuel standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Unleaded gasoline composite standards are comprised of three separate sources each of 87, 89, and 93 octane blended in equal portions.
• Gasoline standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.
  
  Note: BTEX content of catalog numbers 30081, 30205, and 30206 is not measured. Certified BTEX gasoline standards are available as catalog numbers 30237 and 30485.

• Easily determine the retention time window for each boiling point range.
• Prepared in n-pentane according to EPA requirements.

• Aroclor standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.
  
  1,000 μg/mL each in hexane, 1 mL/ampul
  32007: Aroclor 1221
  32008: Aroclor 1232
  32009: Aroclor 1242
  32010: Aroclor 1248
  32011: Aroclor 1254
  32039: Aroclor 1016/1260

• Aroclor standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.
  
  200 μg/mL each in isooctane, 1 mL/ampul
  32064: Aroclor 1016
  32065: Aroclor 1221
  32066: Aroclor 1232
  32067: Aroclor 1242
  32068: Aroclor 1248
  32069: Aroclor 1254
  32070: Aroclor 1260

• Aroclor standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.
  
  1,000 μg/mL each in hexane, 1 mL/ampul
  32006: Aroclor 1016
  32007: Aroclor 1221
  32008: Aroclor 1232
  32009: Aroclor 1242
  32010: Aroclor 1248
  32011: Aroclor 1254
  32012: Aroclor 1260

Components of these products are at 16x the contract-required quantitation level (CRQL) and can be used to prepare calibration mixes at 4x CRQL and at 1x CRQL by serial dilution.

Components of these products are at 16x the contract-required quantitation level (CRQL) and can be used to prepare calibration mixes at 4x CRQL and at 1x CRQL by serial dilution.

Qualitative mixture useful for determining GPC dump/collect times. The compounds are dissolved in methylene chloride at the concentrations listed.

Qualitative mixture useful for determining GPC dump/collect times. The compounds are dissolved in methylene chloride at the concentrations listed.

Contains 1 mL each of these mixtures.
31007: SV Calibration Mix #1 (anilines)
31008: SV Calibration Mix #2 (phenols)
31009: SV Calibration Mix #3 (base neutrals)
31010: SV Calibration Mix #4 (base neutrals)
31011: SV Calibration Mix #5 (PAHs)
31013: SV Calibration Mix #7 (dichlorobenzenes)
31030: 605 Benzidines Calibration Mix (benzidine & 3,3'-dichlorobenzidine)

We prepare the L/C VOA Lab Control Sample in two parts. Sample #1 contains all compounds except vinyl chloride, because this compound is extremely volatile and must be replaced frequently. Sample #2 contains vinyl chloride.

Contains 1 mL each of these mixtures.
30006: VOA Calibration Mix #1 (ketones)
30042: 502.2 Calibration Mix #1 (gases)
30456: CLP 04.1 VOA CAL2000 MegaMix Standard

EPA Method 8330 is used to measure explosives residues in water and soil samples, using HPLC with UV detection.¹ Target analytes are nitroaromatic and nitramine explosives and their degradation products. Obtaining pure, neat compounds for Method 8330 reference standards can be very difficult. To ensure the highest quality standards, Restek's Quality Control (QC) lab confirms the identity and purity of mixture components and solvents using one or more of the following techniques: GC-FID, HPLC, GC-ECD, GC-MS, LC-MS, refractive index, and melting point.

EPA Method 8330 is used to measure explosives residues in water and soil samples, using HPLC with UV detection.¹ Target analytes are nitroaromatic and nitramine explosives and their degradation products. Obtaining pure, neat compounds for Method 8330 reference standards can be very difficult. To ensure the highest quality standards, Restek's Quality Control (QC) lab confirms the identity and purity of mixture components and solvents using one or more of the following techniques: GC-FID, HPLC, GC-ECD, GC-MS, LC-MS, refractive index, and melting point.

EPA Method 8330 is used to measure explosives residues in water and soil samples, using HPLC with UV detection.¹ Target analytes are nitroaromatic and nitramine explosives and their degradation products. Obtaining pure, neat compounds for Method 8330 reference standards can be very difficult. To ensure the highest quality standards, Restek's Quality Control (QC) lab confirms the identity and purity of mixture components and solvents using one or more of the following techniques: GC-FID, HPLC, GC-ECD, GC-MS, LC-MS, refractive index, and melting point.

EPA Method 8330 is used to measure explosives residues in water and soil samples, using HPLC with UV detection.¹ Target analytes are nitroaromatic and nitramine explosives and their degradation products. Obtaining pure, neat compounds for Method 8330 reference standards can be very difficult. To ensure the highest quality standards, Restek's Quality Control (QC) lab confirms the identity and purity of mixture components and solvents using one or more of the following techniques: GC-FID, HPLC, GC-ECD, GC-MS, LC-MS, refractive index, and melting point.

• High concentration.
• Acetonitrile solvent—suitable for HPLC analyses.

• Convenient 15µg/mL concentration, similar to the concentration of interest in most ambient air work.
• Fast analysis — Ultra C18 HPLC column separates 15 aldehydes/ketones in 16 minutes.

Contains 1 mL each of these mixtures.
31618: 8270 Calibration Mix #1
31619: 8270 Calibration Mix #2
31620: 8270 Calibration Mix #3
31621: 8270 Calibration Mix #4
31995: 8270 Calibration Mix #5, Revised
31996: 3-Methylcholanthrene Standard

Contains 1 mL each of these mixtures.
31850: 8270 MegaMix Standard
31834: 605 Benzidines Calibration Mix
32459: Appendix IX Mix #1, Revised (Methapyrilene is not included in this revised standard.)
32460: Methapyrilene Standard
31806: Appendix IX Mix #2

• Highest concentrations commercially available.
• Reduces laboratory cost per sample extract.

• Highest concentrations commercially available.
• Reduces laboratory cost per sample extract.

• Highest concentrations commercially available.
• Convenient 1 mL, 5 mL, and 10 mL package sizes.
• Reduces laboratory cost per sample extract.

• High purity for consistent results.
• Free quality assurance data package available online.
• Highest concentrations commercially available.
• Convenient 1 mL, 5 mL, and 10 mL package sizes reduce cost per sample extract.

• High purity for consistent results.
• Free quality assurance data package available online.
• Highest concentrations commercially available.

Contains 1 mL each of these mixtures.
30042: 502.2 Calibration Mix #1
30043: 502.2 Calibration Mix #2
30044: 502.2 Calibration Mix #3
30045: 502.2 Calibration Mix #4
30046: 502.2 Calibration Mix #5
30047: 502.2 Calibration Mix #6
30067: 4-bromofluorobenzene (2,500 µg/mL)
30073: 8260 Surrogate Mix (2,500 µg/mL)
30074: 8260 Internal Standard Mix (2,500 µg/mL)
30075: 8240/8260 System Performance Check Mix
30005: VOA Matrix Spike Mix (2,500 µg/mL)

Contains 1 mL each of these mixtures.
30042: 502.2 Calibration Mix #1
30043: 502.2 Calibration Mix #2
30044: 502.2 Calibration Mix #3
30045: 502.2 Calibration Mix #4
30046: 502.2 Calibration Mix #5
30047: 502.2 Calibration Mix #6
30067: 4-bromofluorobenzene (2,500 µg/mL)
30240: 8260A Surrogate Mix (2,500 µg/mL)
30241: 8260A Internal Standard Mix (2,500 µg/mL)
30075: 8240/8260 System Performance Check Mix
30005: VOA Matrix Spike Mix (2,500 µg/mL)

• Includes methyl acetate and n-amyl acetate.
• Contains 7 acetates.

A pure, quantitative chloroprene solution, specially stabilized in purge-and-trap grade methanol to allow dilutions for working standards in unmodified purge-and-trap methanol. The entire preparation procedure is performed under carefully monitored conditions to prevent any contamination or polymerization of the highly reactive, neat chloroprene.

FPD Detector:
Internal Standard: none recommended
Surrogate: tributylphosphate (cat.# 32280) and triphenylphosphate (cat.# 32281)

NPD Detector:
Internal Standard: 1-bromo-2-nitrobenzene (cat.# 32279)
Surrogate: 4-chloro-3-nitrobenzotrifluoride (cat.# 32282)

• Chlordane standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Toxaphene standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

Method 418.1 is an infrared spectrophotometric method for determining Total Recoverable Petroleum Hydrocarbons (TRPH). Dilute this mixture 1:200 to make the stock mixture specified in section 6.5.2 of Method 418.1.

• Chlordane and toxaphene standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

• Aroclor standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.

Contains 1 mL each of these mixtures.
30020: 624 Calibration Mix #1
30021: 624 Calibration Mix #2
30022: 624 Calibration Mix #3
30023: 624 Internal Standard Mix
30243: 624 Surrogate Standard Mix

Contains 1 mL each of these mixtures.
30020: 624 Calibration Mix #1
30021: 624 Calibration Mix #2
30022: 624 Calibration Mix #3
30023: 624 Internal Standard Mix

For LC-UV detection.

For LC-fluorescence detection.

• Aroclor, toxaphene, and chlordane standards may exhibit lot-to-lot variation.
• See the Documentation tab for chromatograms on certificates of recently produced lots and inquire about availability.
  
  Contains 1 mL each of these mixtures.
  32022: 608 Calibration Mix
  32006: Aroclor 1016
  32007: Aroclor 1221
  32008: Aroclor 1232
  32009: Aroclor 1242
  32010: Aroclor 1248
  32011: Aroclor 1254
  32012: Aroclor 1260
  32005: toxaphene
  32021: chlordane

This product has a limited shelf life. We recommend that you order only the ampul quantity that meets your immediate needs.

Note: Store standards under frozen conditions (0 °C or colder). We recommend you store ampuls lying flat (horizontally) to prevent breakage. For best results, thaw the contents of the ampul fully and shake the ampul well before opening and using the solution.

• Reference mix of the two most common odor-causing compounds.
• Convenient concentration for purge-and-trap analysis: 100 µg/mL in methanol.

Internal Standard: cat.# 31648
Surrogate for Method 552, 552.1: cat.# 31650
Surrogates for Method 552.2: cat.#'s 31653, 31655, 31656
Surrogate for Method 552.3: cat.# 31881

• Meet Stage 1 requirements for US EPA Methods 552, 552.1 and 552.2.
• Meet requirements for Stage 2 DBPR.
• Prepared from purified neat reference materials for the highest quality.
• Lot-to-lot consistency ensures analytical reproducibility.

• Meet Stage 1 requirements for US EPA Methods 552, 552.1 and 552.2.
• Meet requirements for Stage 2 DBPR.
• Prepared from purified neat reference materials for the highest quality.
• Lot-to-lot consistency ensures analytical reproducibility.

• Meet Stage 1 requirements for US EPA Methods 552, 552.1 and 552.2.
• Meet requirements for Stage 2 DBPR.
• Prepared from purified neat reference materials for the highest quality.
• Lot-to-lot consistency ensures analytical reproducibility.

• Complete set of materials for N-methylcarbamoyloximes and N-methylcarbamates.
• New mix satisfies latest update of EPA Method 531.2.
• Formulated in acetonitrile for stability and convenience for LC analysis.

• Reference materials for U.S. EPA Method 528.
• Fortification solution formulated based on MS sensitivity to each analyte.

• Reference materials for U.S. EPA Method 528.
• Fortification solution formulated based on MS sensitivity to each analyte.

• Separate mixes for surrogates and internal standard.
• Fortification solution combines surrogates and internal standard.
• Calibration mixes and all other quality control mixes also available.

Contains 1mL each of these mixtures.
30042: 502.2 Calibration Mix #1
30431: 502.2 MegaMix
30300: 524 Calibration Mix #7A
30304: 524 Calibration Mix #7B
30203: 524 Calibration Mix #8
30201: 524 Surrogate/Internal Standard Mix

Contains 1 mL each of these mixtures.
30201: 524 Internal Standard/Surrogate Mix
30042: 502.2 Calibration Mix #1
30043: 502.2 Calibration Mix #2
30044: 502.2 Calibration Mix #3
30045: 502.2 Calibration Mix #4
30046: 502.2 Calibration Mix #5
30047: 502.2 Calibration Mix #6
30300: 524 Calibration Mix #7A
30304: 524 Calibration Mix #7B
30203: 524 Calibration Mix #8

Contains 1 mL each of these mixtures.
30300: 524 Calibration Mix #7A
30304: 524 Calibration Mix #7B

• Designed for daily assessment of system performance.
• Reveals active sites in the injection port and/or GC column.
• Prepared in MTBE—low expansion volume helps minimize backflash.

Contains 1 mL each of these mixtures.
32045: 508 Performance Check Mix
32091: 508.1 Internal Standard Mix
32092: 508.1 Surrogate Mix
32093: 508.1 GC Degradation Check Mix
32094: 508.1 Calibration Mix #1
32095: 508.1 Calibration Mix #2
32096: 508.1 Calibration Mix #3

Contains 1 mL each of these mixtures.
30042: 502.2 Calibration Mix #1
30043: 502.2 Calibration Mix #2
30044: 502.2 Calibration Mix #3
30045: 502.2 Calibration Mix #4
30046: 502.2 Calibration Mix #5
30047: 502.2 Calibration Mix #6

• Efficiently controls foam; effective over a wide pH range.
• No hazardous materials, no components that are target analytes.
• Effective at less than 0.1% of sample volume.

Contains 1 mL each of these mixtures.
30439: 502.2 Calibration Mix #1
30432: 502.2 MegaMix Standard

Contains 1 mL each of these mixtures.
30042: 502.2 Calibration Mix #1
30431: 502.2 MegaMix Standard

Contains 1 mL each of these mixtures.
30211: 501 Trihalomethane Mix
30219: DW-VOC Mix #1
30220: DW-VOC Mix #2
30235: DW-VOC Mix #3

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

To view compatible regulators, select your standard below and see Restek Recommends.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

To view compatible regulators, select your standard below and see Restek Recommends.

Our high-quality air monitoring gas calibration standards are provided by Spectra/Linde and Airgas (formerly Scott/Air Liquide gas)—meeting lab requirements for two separate sources of calibration standards.

Note: Actual cylinder pressure may vary due to loss from quality testing procedure.

To view compatible regulators, select your standard below and see Restek Recommends.