Environmental Contaminant Standards - New Products
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Following please find a listing of new items that became available from CIL since the first quarter of 2021. Updates are being released on a quarterly basis as CIL adds new products for environmental analysis to our inventory. Each part number is a link to the full product listing on the CIL website. In the case of mixtures, a “components and concentrations” file is part of the product listing, as located under the “SDS and Product Documents” portion of the item page. Most items included in these updates are in stock at CIL and available for standard delivery, but please contact CIL for complete product availability.
POLYCHLORINATED BIPHENYLS (PCB)
PER- AND POLYFLUOROALKYL SUBSTANCES (PFAS)
PESTICIDE AND PESTICIDE METABOLITE STANDARDS
POLYCYCLIC AROMATIC COMPOUNDS (PAC)
Due to customer requests, CIL now offers lower concentration mixtures for EPA Method 23 to accommodate lower contaminated sample analyses, or laboratories with fewer samples to run.
| Part number | Description | Concentration |
| EDF-4053-L |
Method 23 Internal Standard Stock Solution (1/10 Concentration) |
in nonane |
| EDF-4054-L |
Method 23 Surrogate Standard Stock Solution (1/10 Concentration) |
in nonane |
| EDF-4055-L |
Method 23 Recovery Standard Stock Solution (1/5 Concentration) |
in nonane |
| EDF-5189-L |
Method 23 Alternate Recovery Stock Solution (1/4 Concentration) |
in nonane |
The United States Environmental Protection Agency (US EPA) recently posted new Method 1628, which allows for the detection of all 209 PCB congeners in wastewater. This new method utilizes low-resolution gas chromatography-mass spectrometry with select 13C-labeled PCB congeners as isotope dilution quantification standards. Note this method is not yet approved at 40 CFR Part 136. CIL offers a full suite of standards to support this new method.
| Part number | Description | Concentration |
| EC-5612 |
EPA Method 1628 Calibration Standard Solutions [CS1-CS6] |
6 × 0.2 mL in nonane/isooctane |
| EC-5613 | EPA Method 1628 Labeled Compound Standard Solution | 1.2 mL in acetonitrile |
| EC-5615 | EPA Method 1628 Non-Extracted Internal Standard Solution | 1.2 mL in nonane |
| EC-5614 | EPA Method 1628 Native Standard Solution | 5 mL in acetonitrile |
PER- AND POLYFLUOROALKYL SUBSTANCES (PFAS)
PFAS contaminant testing continues stronger than ever, and CIL is working to keep up with researcher’s needs for more new standards. CIL now offers linear-only native PFHxS, short-chain TFA, MMF, as well as fluoroethers and polyethers.
| Part number | Description | Concentration |
|
Perfluoroalkylsulfonates
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| ULM-12310-1.2 | Potassium perfluoro-1-hexanesulfonate (PFHxS) (unlabeled) (linear isomer) | 50 µg/mL in methanol |
|
Perfluoroalkylcarboxylic Acids
|
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| CLM-11046-1.2 | Trifluoroacetic acid (TFA), sodium salt (13C2, 99%) | 50 µg/mL in methanol |
| ULM-11087-1.2 | Trifluoroacetic acid (TFA), sodium salt (unlabeled) | 50 µg/mL in methanol |
| Other Fluorocarboxylic Acids | ||
| CLM-11260-1.2 | 2,2-Difluoromalonic acid (MMF), disodium salt (13C3, 99%) | 100 µg/mL in methanol |
| ULM-12303-1.2 | 2,2-Difluoromalonic acid (MMF), disodium salt (unlabeled) | 100 µg/mL in methanol |
| Fluoroethers and Polyethers | ||
| ULM-11230-1.2 | “PS Acid” Perfluoro-3,6-dioxa-4-methyl-7-octenesulfonic acid (BP1) (unlabeled) | 50 µg/mL in methanol |
| ULM-11231-1.2 | “Hydro PS Acid” 7H-Perfluoro-4-methyl-3,6-dioxaoctanesulfonic acid (BP2) (unlabeled) CP 95% | 50 µg/mL in methanol |
| ULM-11223-1.2 | Perfluoro-2-methoxyacetic acid (PFMOAA) (unlabeled) | 50 µg/mL in methanol |
CIL’s commitment to the use of IDMS analysis of biomarkers for exposure to VOCs and other compound continues with these new 4-Hydroxyhippuric acid standards.
| Part number | Description | Concentration |
| CLM-11190-1.2 | 4-Hydroxyhippuric acid (ring-13C6, 99%) | 100 µg/mL in methanol |
| ULM-11191-1.2 | 4-Hydroxyhippuric acid (unlabeled) CP 96% | 100 µg/mL in methanol |
With the expansion of nitrosamine screening lists in medications, CIL has recently developed N-Nitrosomethylethylamine (NMEA) to assist researchers with their testing needs.
| Part number | Description | Concentration |
| DLM-12279-1.2 | N-Nitrosomethylethylamine (D3, 98%) | 1 mg/mL in methylene chloride-D2 |
| ULM-12280-1.2 | N-Nitrosomethylethylamine (unlabeled) CP 95% | 1 mg/mL in methylene chloride |
CIL has recently developed high-purity native and stable isotope labeled standards for use with quantification and qualification of a wide range of cannabinoid products, including textiles, pharmaceuticals, personal care products, and foods and beverages.
| Part number | Description | Concentration |
| DLM-10855-1.2 | Cannabidiol (CBD) (D3, 98%) | 100 µg/mL in methanol |
| ULM-10876-1.2 | Cannabidiol (CBD) (unlabeled) | 1000 µg/mL in methanol |
| DLM-10853-1.2 | Cannabigerol (CBG) (methyl-D3, 98%) | 100 µg/mL in methanol |
| ULM-10877-1.2 | Cannabigerol (CBG) (unlabeled) | 1000 µg/mL in methanol |
| DLM-10847-1.2 | Cannabinol (CBN) (methyl-D3, 98%) | 100 µg/mL in methanol |
| ULM-10875-1.2 | Cannabinol (CBN) (unlabeled) | 1000 µg/mL in methanol |
| DLM-10915-1.2 | Cannabivarin (CBV) (methyl-D3, 98%) CP 97% | 100 µg/mL in methanol |
| ULM-10916-1.2 | Cannabivarin (CBV) (unlabeled) CP 97% | 1000 µg/mL in methanol |
| DLM-10854-1.2 | Cannabichromene (CBC) (methyl-D3, 98%) | 100 µg/mL in methanol |
| ULM-10878-1.2 | Cannabichromene (CBC) (unlabeled) | 1000 µg/mL in methanol |
| DLM-11140-1.2 | Cannabidivarin (CBDV) (methyl-D3, 98%) | 100 µg/mL in methanol |
| ULM-11132-1.2 | Cannabidivarin (CBDV) (unlabeled) | 1000 µg/mL in methanol |
6PPD is an antioxidant and antiozonant that is used as an additive in rubber tires to help protect against degradation. When 6PPD reacts with ozone it transforms into several byproducts, including 6PPD-quinone, which has recently been determined to be highly toxic to coho salmon. 2-Chloroethanol is the byproduct of ethylene oxide reacting with chloride, and is considered a hazardous substance and toxic at high concentrations.
| Part number | Description | Concentration |
| CLM-12293-1.2 | 6PPD-Quinone (phenyl-13C6, 99%) | 100 µg/mL in acetonitrile |
| ULM-12288-1.2 | 6PPD-Quinone (unlabeled) | 100 µg/mL in acetonitrile |
| DLM-1928-1.2 | 2-Chloroethanol (1,1,2,2-D4, 98%) | 1000 µg/mL in methanol |
| ULM-12311-1.2 | 2-Chloroethanol (unlabeled) | 1000 µg/mL in methanol |
The need for crop protection chemicals continues unabated, and CIL vigorously supports creation of standards for both parent compounds and metabolites. A recent emphasis on pyrethroid metabolites results in the addition of 14 new pyrethroid metabolites, with an emphasis on 2,3,5,6-Tetrafluoro-substituted metabolites of pyrethroids such as tefluthrin, profluthrin, tetramethylfluthrin, renofluthrin, transfluthrin, and others that may inhibit detoxification of monooxygenases.
| Part number | Description | Concentration |
| CDLM-11206-1.2 | 2,3,5,6-Tetrafluoro-4-methylbenzyl alcohol (methyl-13C, 99%; methyl-D3, 98%) CP 97% | 100 µg/mL in acetonitrile |
| ULM-11207-1.2 | 2,3,5,6-Tetrafluoro-4-methylbenzyl alcohol (unlabeled) CP 97% | 100 µg/mL in acetonitrile |
| CDLM-11210-1.2 | 2,3,5,6-Tetrafluoro-1,4-benzenedimethanol (bisbenzl-13C2; bisbenzyl-D4, 95%) CP 95% | 100 µg/mL in acetonitrile |
| ULM-11211-1.2 | 2,3,5,6-Tetrafluoro-1,4-benzenedimethanol (unlabeled) CP 95% | 100 µg/mL in acetonitrile |
| ULM-11205-1.2 | 2,3,5,6-Tetrafluorobenzyl alcohol (unlabeled) CP 95% | 100 µg/mL in acetonitrile |
| CDLM-11212-1.2 | 4-Methoxymethyl-2,3,5,6-tetrafluorobenzyl alcohol (methyl-13C, 99%; methyl-D3, 98%) | 100 µg/mL in acetonitrile |
| ULM-11213-1.2 | 4-Methoxymethyl-2,3,5,6-tetrafluorobenzyl alcohol (unlabeled) CP 97% | 100 µg/mL in acetonitrile |
| CLM-11214-1.2 | 2-Methyl-3-phenylbenzoic acid (phenyl-13C6, 98%) | 100 µg/mL in acetonitrile |
| ULM-11215-1.2 | 2-Methyl-3-phenylbenzoic acid (unlabeled) (contains ~2% water) | 100 µg/mL in acetonitrile |
| CLM-4543-1.2 | Terbufos (diethoxy-13C4, 99%) CP 97% | 100 µg/mL in acetonitrile |
| ULM-11163-1.2 | Terbufos (unlabeled) | 100 µg/mL in acetonitrile |
While CIL has offered neat 1-Methylnaphthalene since the 1980s, recent requests for quantitative standards have resulted in the formulation of this pair of standards.
| Part number | Description | Concentration |
| DLM-1607-1.2 | 1-Methylnaphthalene (D10, 98%) | 200 µg/mL in isooctane |
| ULM-11240-1.2 | 1-Methylnaphthalene (unlabeled) | 200 µg/mL in isooctane |
As interest in metabolites of nicotine grows, CIL has produced a native glucuronide species, with plans for an isotopically labeled analogue as well.
| ULM-11187-1.2 | trans-3’-Hydroxycotinine-O-glucuronide, ammonium salt (unlabeled) CP 97% | 100 µg/mL in methanol |
