You searched for: standards
Meeting regulations in any industry, standards are essential for periodically checking the accuracy of equipment pieces. By comparing against the known values, output readings detect errors present and inform personnel adjustments are required. Once the settings of the manual or automatic instruments have returned to zero, the reestablished conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.
ADB-PINACA (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Oxazepam-d5 (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Naltrexone-d3 (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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(–)-7-hydroxy Cannabidiol (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Caffeine-13C3 (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Cannabinolic Acid (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Ondansetron (hydrochloride) (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Cyclobenzaprine (hydrochloride) (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Alprazolam-d5 (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Pentedrone (hydrochloride) (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Ketamine (hydrochloride) (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Δ9-THCB (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Acetyl norfentanyl-d5 (hydrochloride) (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Acetyl fentanyl-d5 (hydrochloride) (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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N,N-didesmethyl U-47700 (trifluoroacetate salt) (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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4-fluoro MDMB-BUTINACA N-(4-hydroxybutyl) metabolite (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Δ9-THC-d3 (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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bk-MDEA (hydrochloride) (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Despropionyl para-Fluorofentanyl (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Herbicide Mix #3 (2 components), Derivatized Form, Restek
Supplier: Restek
This mix contains two components.
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(±)-11-hydroxy-Δ9-THC (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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GC-MS Tuning Mixture (4 Components), Restek
Supplier: Restek
Contains four components, those are benzidine, 4,4'-DDT, decafluorotriphenylphosphine and pentachlorophenol.
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Performance Check Solution for US EPA Method 508, SPEX CertiPrep
Supplier: SPEX CERTIPREP LLC
Pesticides, PCBs and Herbicides
The EPA is tasked with the monitoring of environmental systems as they pertain to contamination and human health. The methods issued by the EPA are created to respond to specific toxins or persistent organic pollutants (POPs) found in environmental samples such as soil, source water, drinking water, and waste. In particular, pollutants such as polychlorinated biphenyls (PCBs), which were in widespread industrial use up until their restriction, are of concern due to their stable and persistent nature in the environment. Another group of chemicals of high concern is the hundreds of commercial pesticides and herbicides in use in the world today. Pesticides, from algaecides to virucides, are used in large quantities in industrial and private agriculture. The concern over human pesticide exposure over the past few decades has led to extensive monitoring of these pesticides. It has been reported that over 98% of insecticides and 95% of herbicides affect areas other than their intended target product. It is essential that monitoring agencies have accurate standard mixes to measure the pesticide levels in the environment.
Many new pesticides are now being tested using highly sensitive LC/MS techniques, in addition to traditional GC techniques, to determine minute amounts of residue in environmental samples and food products.
At SPEX CertiPrep, we facilitate ease of monitoring and testing of pesticides by creating pesticide test mixes to suit your monitoring needs. SPEX CertiPrep is the leader in offering pesticide standards designed to work within EPA, AOAC and FDA analytical testing methods using all of the leading analytical techniques: LC, LC/MS, GC, and GC/MS. Many pesticide standard mixes are readily available in our catalog along with a large list of single pesticide standards. In addition, custom pesticide mixes can be made to your specifications to create a mix that meets your needs.
US EPA Method 508 is an analytical method for the monitoring of organochlorine pesticides and PCBs in drinking water and ground water by GC/ECD
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Phytocannabinoid Mixture 6 (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A mixture of phytocannabinoids in an acetonitrile solution intended for HPLC-UV or LC- or GC-MS
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FAME #18 Mix (10 components), Restek
Supplier: Restek
This mixture can be used for quantification (AOCS Method CE 1a–13) and approximate the compositions of the types of oils like peanut, rapeseed and mustard seed oil.
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Nitrosamines Mix
Supplier: SPEX CERTIPREP LLC
US EPA method 8270 is a general analytical method for the monitoring of semivolatiles in environmental and waste samples by GC/MS.
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Volatile Organics Combination Analyte Mix
Supplier: SPEX CERTIPREP LLC
US EPA method 624 is a general analytical method for the monitoring of VOCs in municipal and industrial wastewater by GC/MS.
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Desalkylflurazepam (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
An active metabolite of several benzodiazepines that inhibits L-type Cav channels (IC50s = 55 and 37 µM for Cav1.2 and 1.3, respectively) by positively modulating GABAA receptors
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Grob Column Test Mix, Restek
Supplier: Restek
Grob test mix includes nC10-fatty acid methyl esters (FAME), nC11-FAME, nC12-FAME, 2,3-butanediol, dicyclohexylamine, 2,6-dimethylaniline, 2,6-dimethylphenol, 2-ethylhexanoic acid , nonanal, 1-octanol, undecane (C11) and decane (C10).
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CLP GPC Calibration Mix (5 components), Restek
Supplier: Restek
Contains: Bis(2-ethylhexyl) phthalate (117-81-7), 10 mg/mL; Corn oil (8001-30-7), 250 mg/mL; Methoxychlor (72-43-5), 2.0 mg/mL; Perylene (198-55-0), 0.2 mg/mL; Sulfur (7704-34-9), 0.8 mg/mL
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Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: Janitorial Supplies
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: Janitorial Supplies
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International