Pesticides
USP <561> List
Method Description
USP <561> pesticide testing using gas chromatography targets volatile and semi-volatile pesticide residues according to United States Pharmacopeia standards. This testing is required for pharmaceutical ingredients and dietary supplements to ensure safety and regulatory compliance. The method focuses on pesticides that are amenable to gas chromatographic separation and provides the sensitivity needed to meet USP limits.
Analyte List
| Analyte Name | CAS # | Type |
|---|---|---|
| Aldrin | 309-00-2 | Measured |
| Bromophos-ethyl | 4824-78-6 | Measured |
| Bromophos-methyl | 2104-96-3 | Measured |
| Bromopropylate | 18181-80-1 | Measured |
| Chlorpyriphos-methyl | 5598-13-0 | Measured |
| Chlorthal-dimethyl | 1861-32-1 | Measured |
| Cyfluthrin | 68359-37-5 | Measured |
| Dichlofluanid | 1085-98-9 | Measured |
| Dieldrin | 60-57-1 | Measured |
| Endosulfan Sulfate | 1031-07-8 | Measured |
| Endrin | 72-20-8 | Measured |
| Fenchlorophos | 299-84-3 | Measured |
| Fenchlorophos-oxon | 3983-45-7 | Measured |
| Fenitrothion | 122-14-5 | Measured |
| Fenvalerate | 51630-58-1 | Measured |
| Heptachlor | 76-44-8 | Measured |
| Hexachlorobenzene | 118-74-1 | Measured |
| Lindane (gamma-Hexachlorocyclohexane) | 608-73-1 | Measured |
| Methacriphos | 30864-28-9 | Measured |
| Methylpentachlorphenyl Sulfide | 1825-19-0 | Measured |
| Mirex | 2385-85-5 | Measured |
| Oxychlordane | 27304-13-8 | Measured |
| Paraoxon-ethyl | 311-45-5 | Measured |
| Paraoxon-methyl | 950-35-6 | Measured |
| Parathion-ethyl | 56-38-2 | Measured |
| Parathion-methyl | 298-00-0 | Measured |
| Pentachloroaniline | 527-20-8 | Measured |
| Pentachloroanisole | 1825-21-4 | Measured |
| Pentachloronitrobenzene (Quintozene) | 82-68-8 | Measured |
| Procymidone | 32809-16-8 | Measured |
| S-421 | 127-90-2 | Measured |
| Tecnazene | 117-18-0 | Measured |
| Tetradifon | 116-29-0 | Measured |
| Vinclozolin | 50471-44-8 | Measured |
| alpha-Endosulfan | 959-98-8 | Measured |
| alpha-Hexachlorocyclohexane | 319-84-6 | Measured |
| beta-Endosulfan | 33213-65-9 | Measured |
| beta-Hexachlorocyclohexane | 319-85-7 | Measured |
| cis-Chlordane | 5103-71-9 | Measured |
| cis-Heptachlorepoxide | 1024-57-3 | Measured |
| delta-Hexachlorocyclohexane | 319-86-8 | Measured |
| epsilon-Hexachlorocyclohexane | 6108-10-7 | Measured |
| n-Desethyl-Pirimiphos-Methyl | 67018-59-1 | Measured |
| o,p'-DDE | 3424-82-6 | Measured |
| o,p'-DDT | 789-02-6 | Measured |
| o,p'-TDE | 53-19-0 | Measured |
| p,p'-DDE | 72-55-9 | Measured |
| p,p'-DDT | 50-29-3 | Measured |
| p,p'-Dicofol | 115-32-2 | Measured |
| p,p'-Methoxychlor | 72-43-5 | Measured |
| p,p'-TDE | 72-54-8 | Measured |
| tau-Fluvalinate | 102851-06-9 | Measured |
| trans-Chlordane | 5103-74-2 | Measured |
| trans-Heptachlorepoxide | 28044-83-9 | Measured |
| Aldrin + Dieldrin | Total (Sum) | |
| Parathion-ethyl + Paraoxon-ethyl | Total (Sum) | |
| Parathion-methyl + Paraoxon-methyl | Total (Sum) | |
| Pirimiphos-Methyl + n-Desethyl-Pirimiphos-Methyl | Total (Sum) | |
| Total Chlordanes - USP | Total (Sum) | |
| Total DDTs | Total (Sum) | |
| Total Endosulfans | Total (Sum) | |
| Total Fenchlorophos | Total (Sum) | |
| Total Heptachlors | Total (Sum) | |
| Total Hexachlorocyclohexanes | Total (Sum) | |
| Total Quintozenes | Total (Sum) |
Technical Data Sheet
Information required by submitted
Please provide an estimated fat content if known. Do not write on the sample or its packaging with solvent-based markers — the ink can contaminate the sample.
Additional information
Modified USP <561> method. The following USP <561> analytes are not covered by the modified method: inorganic bromide (calculated as bromide ion), chlorpyriphos-methyl, dichlofluanid, dithiocarbamates (as CS₂), parathion-methyl/paraoxon-methyl and the other entries listed on the certificate of analysis. Results are reported per analyte in µg/g (ppm); totals (e.g. Total DDTs, Total Chlordanes) are calculated sums.
Pesticides
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