Medical Marijuana
Growing Analytical Solutions
for Medical 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 accurate, reliable medical cannabis analyses.
  • Your continued success is our goal—we provide expert support for both startups and established labs.
Growing Analytical Solutions for Medical 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 medical 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 for terpenes and residual solvents by GC, Restek offers the chromatography columns, accessories, and sample preparation supplies that you need for accurate, reliable medical marijuana analyses. In addition, we have the most comprehensive selection of cannabinoid-related certified reference materials (CRMs), manufactured and QC tested in our ISO-accredited laboratories.

We’re proud to have helped medical 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 medical cannabis testing business with analytical solutions from Restek!

Restek Expertise & Service

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

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


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-5Sil MS (silice fusa)

(fase a bassa polarità; 1,4-bis(dimetilsiloxi)fenilene dimetil polisilossano Crossbond)

  • Progettata per essere una colonna GC-MS a basso bleed
  • Eccelente inerzia per composti attivi
  • Colonne per uso generico —ideali per analisi in GC-MS di semivolatili, composti policiclici aromatici, idrocarburi policiclici, idrocarburi clorinati, ftalati, fenoli, ammine, pesticidi organoclorurati, pesticidi organofosforati, droghe, impurità solventi e idrocarburi
  • Range di temperatura: -60 °C 3 350 °C.

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)

Dimensioni delle particelle: 3 µm e 5 µm, sferica.
Pore size: 100 Å.
Carbon Load: 15%.
End-cap: no.
Range di pH: 2.5 - 8.
Limiti di temperatura: 80 °C.
Codice fase USP: L1.
Categoria fase: C18 modificata.
Tipo ligando: modificato polare e funzionalmente legato a C18, proprietaria.

Reference Standards

Cannabis Standards

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

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.

Sample Handling

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)

Supplies & Accessories

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.

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.

Siringhe microlitro manuali (Hamilton 700 Series)

  • 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.
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 drug makers 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

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

Review our Pittcon presentation on the analysis of pesticides in marijuana. Here we demonstrate that complex cannabis samples can be effectively prepared for chromatographic analysis using QuEChERS and cartridge SPE. GCxGC was used to separate pesticides that would coelute with matrix interferences in one-dimensional GC. (PDF - 0MB)

PDF Document

Growing Analytical Solutions for Cannabis Testing

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 - 0MB)

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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