Growing Analytical
Solutions for Cannabis Labs

  • Restek is an industry leader in new chromatography products and emerging applications.
  • We offer a full line of GC and LC supplies for fast, accurate, reliable cannabis analyses.
  • Extensive line of certified reference materials manufactured and QC tested in ISO-accredited labs.
  • Your continued success is our goal—we provide expert support for both startups and established labs.
Growing Analytical Solutions for Cannabis Labs

Whether you are an experienced potency testing chemist or a manager starting up a new lab, Restek has the products and expertise you need for successful cannabis analyses. We’ve been committed to this emerging industry from its humble beginnings through its recent years of rapid growth. During that time, we produced the first technical literature on potency testing in the business, and our experts continue to provide cutting-edge scientific support and a comprehensive line of products for new tests as they emerge. From analyzing potency and pesticides by LC to testing terpenes and residual solvents by GC, Restek offers the chromatography columns, accessories, and sample preparation supplies that you need for fast, accurate, reliable marijuana analyses. In addition, we have an extensive selection of cannabinoid-related certified reference materials (CRMs), manufactured and QC tested in ISO-accredited laboratories.

We’re proud to have helped cannabis labs establish sound analytical practices from the beginning, and we will continue to be there for you every step of the way as the testing landscape changes. Explore our products and resources and grow your cannabis testing business with analytical solutions from Restek!

Restek Expertise & Service

Our commitment to cannabis analysis extends beyond a trusted, well-rounded product line. If you're struggling with any part of your analyses, contact us—we’re here to help!

Restek Technical Service
1-814-353-1300, ext. 4 | Email


Colonne Rxi-35Sil MS (silice fusa)

(fase a polarità intermedia Crossbond)

  • Selettività specifica ed eccelente inerzia per composti polari sostituiti come droghe, pesticidi, erbicidi, PCB, fenoli
  • Offre una separazione superiore per i cannabinoidi
  • Fase con un bassissimo bleed ideale per analisi in GC-MS
  • Range di temperatura esteso: da 50 °C a 360 °C.

Colonne Rxi-624Sil MS (silice fusa)

(fase a polarità intermedia Crossbond)

  • Colonne a basso bleed e di elevata stabilità termica — temperature massime fino a 300–320 °C
  • Inerzia — eccellente forma del picco per un ampio range di composti
  • Selettività — fase G43 altamente selettiva per composti organici volatili e solventi residui, grande scelta per USP<467>
  • Prodotta per garantire la riproducibilità da a colonna a colonna — ottima per validare metodi

Colonne Rxi-5ms (silice fusa)

(fase a bassa polarità; difenil dimetil polisilossano Crossbond)

  • Colonne per uso generico per semivolatili, fenoli, ammine. solventi residui, droghe d'abuso, pesticidi, congeneri di PCB (p.e.Aroclor mix), impurità solventi
  • E' la colonna più inerte sul mercato
  • Testata e garantira per bleed ultra bassi; miglior rapporto segnale/rumore per una migliore sensibilità in MS
  • Range di emperature : -60 °C - 330/350 °C
  • Equivalente alle fasi USP G27 e G36

Pre-colonne/Retention Gap Rxi (silice fusa)

  • Durata maggiore della colonna
  • Eccellente inerzia — limiti di rivelazione più bassi per i composti attivi
  • picchi cromatografici più affilati mediante l'uso della retention gap
  • Temperatura massima: 360 °C.

Colonne LC Raptor ARC-18 (USP L1)

  • Ideali per alti flussi di lavoro in applicazioni in LC - MS/MS con una minima preparazione del campione
  • Profilo di ritenzione ben equilibrato per una migliore individuazione e integrazione di un gran numero di analiti multiclasse
  • Protette stericamente per sopportare fasi mobili a pH bassi senza sacrificare la ritenzione e la qualità del picco
  • Fanno parte della linea di colonna LC Raptor core-shell in silice SPP da 1,8 micron, 2,7 micron e 5 micron Raptor

Colonne Ultra Aqueous C18 (USP L1)

Categoria fase: C18 modificata (L1)
Tipo ligando: modificato polare e funzionalmente legato a C18, proprietaria
Particelle: 3 µm e 5 µm, sferica
Dimensione del poro: 100 Å
Carico di carbonio: 15%
End-cap: no
Area superficiale: 300 m2/g
Range di pH: 2.5 - 8
Temperatura massima: 80 °C

Reference Standards

Cannabis Standards

Comprehensive suite of certified reference materials developed specifically
for cannabis analysis.

Standard Pesticidi Oregon (6 miscele separate)

  • Soddisfano le specifiche esigenze di analisi di residui di pesticidi nella cannabis dello stato dell’Oregon e di altri stati con regolamenti simili sui residui di pesticidi.
  • Composizione e stabilità verificate.
  • 59 composti in un set da 6 ampolle x 1 ml alla concentrazione di 600 μg/mL – risultante in una comoda soluzione 100 μg/mL una volta che le sei ampolle vengono miscelate tra loro prima dell’utilizzo.
  • Il prodotto pronto all’uso elimina la necessità di preparare degli standard “fatti-in-casa”.

QuEChERS Internal Standards and Quality Control Standards

  • Single and multiple component standards as specified in EN Method 15662.
  • Support for GC and HPLC with MS, MS/MS, and selective detectors.
  • Ready to use for QuEChERS extractions—no dilutions necessary.

Solventi residui classe 2 - Miscela A (rev. 2013) (16 componenti)

  • Detect and quantify USP <467> Class 2 residual solvents in pharmaceuticals.
  • Reformulated to include cumene, added to USP <467> Class 2 list in August 2013.
  • Quantitatively tested to confirm composition and stability; detailed support documentation provided.
  • Restek is your complete supplier for world-class USP <467> residual solvent analysis: reference standards, Rxi-624Sil MS (G43) and Stabilwax (G16) GC columns, inlet liners, accessories, applications, and more.

Solventi Residui di Classe 3 – Mix A (24 componenti)

  • Mix multicomponente che semplifica la preparazione dello standard e riduce la variabilità.
  • Ideale per analisi di solventi residui secondo USP <467>.
  • Stabilità e composizione della miscela verificate.

Residual Solvents #1 (20 components)

  • Designed for cannabis labs testing residual solvents at different threshold limits by headspace GC.
  • Contains 20 commonly analyzed solvents in one convenient solution.
  • Verified composition and stability.
  • In stock and available for immediate shipment.

Kit pesticidi multiresidui LC

  • 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.

Kit pesticidi multiresidui GC

  • 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.

Don't see what you need?

Order a custom standard formulated to your exact specifications.

Sample Handling

Q-sep QuEChERS Sali di Estrazione

  • I Sali si trasferiscono facilmente e completamente nella provetta.
  • L’apertura facilitata dei pacchetti elimina la necessità di una seconda provetta vuota per il trasferimento dei sali di estrazione.
  • Il design innovativo del confezionamento fa si che i pacchetti si adattino perfettamente alle provette, evitando fuoriuscite.
  • Provette pronte all'uso, nessuna vetreria richiesta.
  • Sali di estrazione pre-pesati e ultra-puri.
  • Ideali per metodi QuEChERS originali senza tampone, AOAC (2007.01) ed Europei (EN 15662).

Provette dSPE Q-sep QuEChERS per estrazione cleanup

Preparazione del campione per analisi di pesticidi multiresiduo Veloce e Facile

  • Packaged in foil subpacks of 10 for enhanced protection and storage stability.
  • Ready-to-use tubes, no glassware required.
  • Pre-weighed, ultra-pure sorbents.
  • Support original unbuffered, AOAC (2007.01), European (EN 15662), and mini-multiresidue QuEChERS methods.

Centrifuga Q-sep 3000 per QuEChERS

  • Supports 50 mL, 15 mL, and 2 mL centrifuge tubes.
  • Small footprint requires less bench space.
  • Safe and reliableUL, CSA, and CE approved; 1-year warranty.

Rack per provette Q-sep

  • Available for 2 mL, 15 mL, and 50 mL tubes.
  • Alphanumerical grid reference on top tier for easy identification of samples.
  • Easy to assemble; simply fold and snap together securely.

Cartucce SPE per cleanup di pestici residuali

  • Convenient, multiple adsorbent beds in a single cartridge.
  • For use in multiresidue pesticide analysis to remove matrix interferences.
  • Excellent for cleanup of dietary supplement extracts.

Cartucce SPE Resprep (Fasi inverse legate)

Hydrophobic (nonpolar) silica-based adsorbents; used to extract hydrophobic analytes from polar matrices, such as water (e.g., pesticides from water).

C18 (high load, endcapped)

Standard Filter Vials Thomson SINGLE StEP

  • Recommended for samples containing less than 10% solid particulates.
  • Easy-to-use vials offer fast sample filtration and require only a squeeze of your fingers.
  • Minimize sample loss by eliminating multiple transfers.
  • Color-coded caps allow easy identification of 0.2 μm or 0.45 μm membranes in PVDF, PTFE, PES, or nylon.
  • Preslit PTFE/silicone caps help eliminate broken autosampler needles and cored septa.
  • Rugged polypropylene vial houses insert with 450 μL loading capacity and low dead volume (120 μL).
  • Fit most standard 12 x 32 mm autosamplers, including UHPLC instruments.

SPE Manifold Resprep 12- o 24-Porte

  • Use with any standard male luer end SPE cartridges.
  • Inert, PTFE sample guides reduce cross-contamination and carryover.
  • Flexible sample collection rack will accommodate a variety of receiving vessels.
  • Quick vacuum-release valve for better system control.
  • Individual valves allow vacuum control for each cartridge, improving reproducibility.

Holder a connessione diretta EXP

  • L'architettura "Free- Turn" consente di cambiare le cartucce manualmente senza danneggiare l'ingresso e l'uscita delle connessioni - Non è necessaro usare attrezzi
  • Brevettate con ferrule in titanio ibrido per essere installate più volte senza compromettere la tenuta ad alta pressione
  • Si auto-regolano per garantire la connessione ZDV (zero death volume)
  • L'holder a connessione diretta EXP richiede cartucce dedicate; disponibili nei seguenti formati: 2,1, 3,0 e 4,6mm

Supplies & Accessories

GC Accessories

Full line of GC consumables, lab tools to make your life easier, and replacement parts for all major instrument manufacturers.

LC Accessories

Quality replacement parts, tools, and accessories for liquid chromatography.

Kit convenienza autocampionatore di 8 mm per vial da 2,0 ml

  • Vials packaged in a clear-lid tray.
  • Preassembled caps with septa packaged separately in a plastic bag.
  • Black polypropylene open-hole caps and 8 mm red PTFE/silicone septa, 0.065".

Siringhe microlitro manuali (Hamilton serie 700)

  • Economical.
  • Available with cemented needles (N/F) or removable needles (RN/R).
  • Each syringe plunger and barrel assembly is manufactured as one working unit; components are not interchangeable or individually replaceable.

Iniettore Merlin MicroShot

  • NIST traceability assures accurate injections.
  • Fixed volume reduces sampling error.
  • Saves timeno need to transfer to autosampler vials.
  • Prevents bent syringe plungers.
  • Five injection volumes available.*
Alimentare, Aromi & Fragranze

Featured Application: Cannabinoid Profiles on Raptor ARC-18 - High Throughput Analysis of Cannabinoids by LC-UV

This simple, isocratic LC-UV analysis of cannabinoids provides complete resolution of 16 cannabinoids, allowing accurate quantitative potency and profile data to be reported. All compounds are separated to baseline in a fast, 9-minute analysis, making this method suitable for high-throughput cannabis testing labs.

Clinico, Forense & Tossicologico

Analysis of Synthetic Cannabinoids and Metabolites: Adding New Compounds to an Existing LC-MS/MS Method

The analysis of synthetic cannabinoids and their metabolites can be a difficult and challenging task. Keeping up with the ever-growing list of synthetic cannabinoids that illicit drugmakers produce further complicates the analysis. As shown here, the retention and selectivity of the Raptor Biphenyl column allows new drugs to be added to an existing method, providing labs with an important vehicle for improving efficiency and productivity.

Alimentare, Aromi & Fragranze

High-Quality Analysis of Pesticides in Cannabis Using QuEChERS, Cartridge SPE Cleanup, and GCxGC-TOFMS

As medical marijuana is more frequently prescribed, patient safety must be ensured. Pesticide residue testing is an important part of assuring safe product is dispensed, but analysis can be extremely challenging due to matrix complexity. The use of QuEChERS, cartridge SPE cleanup, and GCxGC-TOFMS as presented here, produces high-quality quantitative data for this difficult analysis.

Alimentare, Aromi & Fragranze

Comprehensive Pesticide Residue Analysis by LC-MS/MS Using an Ultra Aqueous C18 Column

Analysis of pesticide residues in foods is complicated by the large number of target compounds. LC-MS/MS analysis using an Aqueous C18 column provides more comprehensive results than GC alone.

PDF Document

Growing Analytical Solutions for Cannabis Testing: Innovative Products and Expertise for Fast, Accurate, Reliable Results

Restek has been helping cannabis labs establish innovative, cost-effective analytical solutions from the very beginning. We have the GC and LC products and expertise you need today for analyzing potency, terpenes, residual solvents, and pesticide residues. And we are developing the products you’ll need tomorrow for emerging cannabis applications in this fast-growing industry. (PDF - 9MB)

PDF Document

Accurately Quantify 380 Pesticides Using LC-MS/MS and GC-MS/MS

Stop spending your time and money developing LC-MS/MS or GC-MS/MS multiresidue pesticide methods and mixing reference standards when you could be running samples. Restek’s expert formulations chemists and chromatographers have already done the work for you—with guaranteed accuracy and at a lower cost. (PDF - 0MB)

GC Chromatograms

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