Development of a high-sensitivity quantitative analytical method for determining polycarbamate by gas chromatography-mass spectrometry incorporating temperature-programmable inlet on-column injection.
J Chromatogr A
; 1074(1-2): 155-61, 2005 May 13.
Article
em En
| MEDLINE
| ID: mdl-15941051
ABSTRACT
A highly sensitive analytical method was developed using GC/MS with temperature-programmable inlet on-column injection (TPI on-column GC/MS) for determining methyl dimethyldithiocarbamate (DMDC-methyl) and dimethyl ethylenebisdithiocarbamate (EBDC-dimethyl), which are methyl derivatives of alkali decomposed polycarbamate. This method makes it possible to quantify 0.3 microg/l of polycarbamate in tap water, which is a 1/100 of the residual target value of 30 microg/l in Japan. Moreover, it now becomes possible to distinguish polycarbamate from other dithiocarbamate pesticides (DTCs) that have similar structures, including ziram and thiram, which only incorporate a DMDC side chain, or manzeb, maneb and zineb, which only incorporate an EBDC side chain, by simultaneously analyzing for DMDC-methyl and EBDC-dimethyl.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Tiocarbamatos
/
Cromatografia Gasosa-Espectrometria de Massas
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
J Chromatogr A
Ano de publicação:
2005
Tipo de documento:
Article