6533b871fe1ef96bd12d229c
RESEARCH PRODUCT
Direct derivative spectrophotometric determination of carbaryl and carbofuran in water samples
Z.a. De BenzoM. De La GuardiaAmparo Salvadorsubject
Detection limitChromatographymedicine.diagnostic_testDerivativePesticideThird derivativeAnalytical ChemistryDilutionchemistry.chemical_compoundchemistrySpectrophotometryCarbarylmedicineCarbofuranSpectroscopydescription
Abstract Derivative absorption spectrophotometry has been applied to the direct determination of carbaryl and carbofuran in water samples. The use of the third derivative for carbaryl and the fourth derivative for carbofuran reduces the matrix effect and the seventh derivative provides, in both cases, accurate results for the determination of these pesticides, even working at low dilution levels of the samples. A limit of detection of 4 ppb and a variation coefficient of 0.1% have been obtained for the determination of carbaryl. Carbofuran can be determined with a limit of detection of 5 ppb and a variation coefficient of 0.02%.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1990-10-01 | Microchemical Journal |