Cannabis Pesticide Testing
Glycerol (Molecular Biology), Fisher BioReagents™
CAS: 56-81-5 Molecular Formula: C3H8O3 Molecular Weight (g/mol): 92.094 InChI Key: PEDCQBHIVMGVHV-UHFFFAOYSA-N Synonym: 1,2,3-propanetriol PubChem CID: 753 ChEBI: CHEBI:17754 IUPAC Name: propane-1,2,3-triol SMILES: C(C(CO)O)O
PYREX™ Griffin Beakers
Offers optimum balance between thermal shock resistance and mechanical strength
Ethylenediaminetetraacetic Acid, Disodium Salt Dihydrate (Crystalline/Certified ACS), Fisher Chemical
CAS: 6381-92-6 Molecular Formula: C10H18N2Na2O10 Molecular Weight (g/mol): 372.238 MDL Number: MFCD00150037 InChI Key: OVBJJZOQPCKUOR-UHFFFAOYSA-L Synonym: buffer solution, ph 10.00 PubChem CID: 44120005 IUPAC Name: disodium;2-[2-[bis(carboxymethyl)amino]ethyl-(carboxylatomethyl)amino]acetate;dihydrate SMILES: C(CN(CC(=O)[O-])CC(=O)[O-])N(CC(=O)O)CC(=O)O.O.O.[Na+].[Na+]
Fisherbrand™ Reusable Glass Narrow-Mouth Erlenmeyer Flasks
Long, tapered outside contour minimizes chipping
Thermo Scientific™ Nalgene™ Polypropylene Powder Funnels
Transfer powders with these powder funnels. Parallel stem minimizes bridging of powder and external ribbing prevents air locks. A shatter-proof alternative to glass.
Fisherbrand™ Robotic Screw Top Autosampler Vials
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Fisherbrand™ Reusable Glass Class A Volumetric Flasks with Standard Taper Stopper
Single graduation ring blasted on the neck
Thermo Scientific™ Nalgene™ Polypropylene Griffin Low-Form Plastic Beakers
Thermo Scientific™ Nalgene™ Polypropylene Griffin Low-Form Beakers, featuring a single-spout design.
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D-Sucrose (Molecular Biology), Fisher BioReagents
CAS: 57-50-1 Molecular Formula: C12H22O11 Molecular Weight (g/mol): 342.297 InChI Key: CZMRCDWAGMRECN-UGDNZRGBSA-N Synonym: amerfand PubChem CID: 5988 ChEBI: CHEBI:17992 IUPAC Name: (2R,3R,4S,5S,6R)-2-[(2S,3S,4S,5R)-3,4-dihydroxy-2,5-bis(hydroxymethyl)oxolan-2-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol SMILES: C(C1C(C(C(C(O1)OC2(C(C(C(O2)CO)O)O)CO)O)O)O)O
Ethylenediaminetetraacetic Acid, Di Na Salt Dihydr. (Crystalline Powd./Electrophor.), Fisher BioReagents
CAS: 6381-92-6 Molecular Formula: C10H18N2Na2O10 Molecular Weight (g/mol): 372.238 InChI Key: OVBJJZOQPCKUOR-UHFFFAOYSA-L Synonym: buffer solution, ph 10.00 PubChem CID: 44120005 IUPAC Name: disodium;2-[2-[bis(carboxymethyl)amino]ethyl-(carboxylatomethyl)amino]acetate;dihydrate SMILES: C(CN(CC(=O)[O-])CC(=O)[O-])N(CC(=O)O)CC(=O)O.O.O.[Na+].[Na+]
Propylene Glycol (USP/FCC), Fisher Chemical
CAS: 57-55-6 Molecular Formula: C3H8O2 Molecular Weight (g/mol): 76.095 MDL Number: MFCD00064272 InChI Key: DNIAPMSPPWPWGF-UHFFFAOYSA-N Synonym: 1,2-dihydroxypropane PubChem CID: 1030 ChEBI: CHEBI:16997 IUPAC Name: propane-1,2-diol SMILES: CC(CO)O
Thermo Scientific™ Nunc™ Biobanking and Cell Culture Cryogenic Tubes
Store samples from general cold storage to the vapor phase of liquid nitrogen with Thermo Scientific™ Nunc™ Biobanking and Cell Culture Cryogenic Tubes.
Fisherbrand™ Low-Form Polypropylene Beakers
Resistant to most acids, bases, and many commonly used solvents
Fisherbrand™ Reusable Glass Tubes with Phenolic Screw Caps
Phenolic screw cap with white rubber liner
Bel-Art™ Polypropylene Graduated Pitchers
Constructed of translucent polypropylene. SP Scienceware™ Polypropylene Graduated Pitchers are ideal for general laboratory use and offer well designed spouts and large handles.
As with other agricultural products, the use of pesticides, antifungals, and other chemicals have been applied to cannabis plants to increase their yields and reduce damage from microorganisms and insects. Legalized cannabis for recreational use has requirements for pesticide residue content in cannabis flower and other products.
These agents may be harmful to humans, animals, and the environment, especially to those who are exposed to the materials for long periods of time. As with tobacco, complex compounds and mixtures can be produced when cannabis is smoked, producing toxic materials. Cannabis smoke will contain pesticide residue if it was also found on the plant itself.
Conventional agricultural commodities are assigned maximum residue levels (MRLs) for pesticides. MRLs are usually established by the government as part of the pesticide registration process, and the same approach may be used for cannabis and cannabinoid products.
Gas chromatography-mass spectrometry (GC-MS/MS) it is not suitable for thermally labile ionic and polar compounds, so is not the best suited for cannabis pesticide testing. Liquid chromatography-tandem mass spectrometry (LC/MS/MS) is the method of choice for cannabis pesticide testing. It is selective, sensitive, can be used with pesticide standards, and works with a wide range of compounds and sample compositions.
Pesticide residue analysis in cannabis is also affected by the differences in pesticide residue and coextracted cannabinoid and terpene concentrations. These materials can affect the MS/MS system, which may then require more instrument downtime and maintenance. This effect can be ameliorated by using a QuEChERS extraction method, diluting the sample, and using internal and matrix-matched calibration standards.