Pular para o conteúdo
Merck
Todas as fotos(1)

Documentos Principais

G005815

GC Analysis of Organophosphorus Pesticides (OP-Pest) in Cabbage, Onion, and Mushrooms on SLB-5ms after SPE using Supelclean™ ENVI-Carb™ II/PSA

application for SPE, suitable for GC

Faça loginpara ver os preços organizacionais e de contrato
Todas as fotos(1)

About This Item

técnica(s)

gas chromatography (GC): suitable
solid phase extraction (SPE): suitable

parâmetros de teste

sample preparation: SPE (Solid Phase Extraction)
sample/matrix: 10 g homogenized food sample (green onions, apples, Napa cabbage, button mushrooms)
SPE tube/cartridge: Supelclean ENVI-Carb II/PSA SPE Tube (54067-U)
condition: 5 mL acetone:toluene (65:35)
sample addition: 1 mL sample extract
elution: 10 mL of acetone:toluene (65:35)
eluate post-treatment: Evaporate fraction to 0.5 mL then adjust volume to 1 mL with ethyl acetate for GC-NPD analysis
column: SLB-5ms, 30 m x 0.25 mm I.D., 0.25 μm (28471-U)
oven: 110 °C (2 min), 2.5 °C/min to 205 °C, 10 °C/min to 310 °C (10 min)
inj. temp.: 250 °C
detector: NPD, 310 °C
carrier gas: helium, 0.9 mL/min constant flow
injection: 2 μL, splitless
liner: 4 mm I.D. dual tapered

adequação

application for SPE

aplicação(ões)

agriculture
food and beverages

Nota de preparo

Sample pretreatment: To a 10 g sample of homogenized food (green onions, apples, Napa cabbage, button mushrooms) was added 10 mL acetonitrile and 4 g magnesium sulfate (that had been heated at 550 °C) and 1 g sodium chloride. After centrifugation, the supernatant was removed and mixed with 1 g magnesium sulfate and centrifuged. 5 mL of the supernatant was removed and evaporated to 1 mL for SPE loading.

Nota de análise

Organophosphorous pesticide use in agriculture is widespread due to the fact that they are more amenable to environmental degradation in comparison to organochlorine or organonitrogen compounds. There are a large number of pesticides in the organophosphorous group, and because of their potential health effects, they are of particular concern on produce imported from areas in which they are commonly used. This chromatogram illustrates the separation of 63 of these pesticides by GC on the SLB-5ms using nitrogen phosphorus detection (NPD).

Informações legais

ENVI-Carb is a trademark of Sigma-Aldrich Co. LLC
Supelclean is a trademark of Sigma-Aldrich Co. LLC

Analito

Descrição
    Methamidophos
    Dichlorvos
    Acephate
    Omethoate
    Ethoprophos
    Dicrotophos
    Cadusafos
    Monocrotophos
    Phorate
    Terbufos
    Propetamphos
    Disulfoton
    Chloropyrifos-methyl
    Parathion-methyl
    O,O-Diethyl O-(4-nitrophenyl) phosphate
    Malathion
    Fenthion
    Parathion
    Isocarbophos
    Trichloronate
    Methidathion
    Fensulfothion
    Ethion
    Famphur
    Pyridaphenthion
    Phosmet
    Phosalone
    Azinphos-methyl
    Azinphos-ethyl
    Coumaphos
    Temephos
    Diazinon
    Dichlofenthion
    Dimethoate
    Phosfolan
    Fenitrothion
    Phenthoate
    Ver tudo (37)

Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documentos section.

Se precisar de ajuda, entre em contato Atendimento ao cliente

Já possui este produto?

Encontre a documentação dos produtos que você adquiriu recentemente na biblioteca de documentos.

Visite a Biblioteca de Documentos

Nossa equipe de cientistas tem experiência em todas as áreas de pesquisa, incluindo Life Sciences, ciência de materiais, síntese química, cromatografia, química analítica e muitas outras.

Entre em contato com a assistência técnica