[Determination of cotinine, phenylglyoxylic acid and mandelic acid in human urine by GC/MS].
Zhejiang Da Xue Xue Bao Yi Xue Ban
; 38(3): 229-34, 2009 05.
Article
em Zh
| MEDLINE
| ID: mdl-19504629
ABSTRACT
OBJECTIVE:
To establish a GC/MS method for analysis of cotinine (COT), phenylglyoxylic acid (PA) and mandelic acid (MA) in human urine.METHODS:
Human urine samples were extracted by CCl(3) and derivatized with MSTFA after dried completely. The contents of COT, PA and MA were measured by GC/MS method with DB-5MS capillary column and EI ion-source.RESULT:
The calibration curves for COT in urine samples were linear over the concentration ranges of 0.0002 approximately 3.5 microg ml(-1), while PA and MA were both of 1.25 approximately 160 microg ml(-1). The limits of quantification were 0.0002 microg ml(-1), 1.25 microg ml(-1) and 1.25 microg ml(-1) for COT, PA and MA, respectively. The assay recoveries for COT, PA and MA ranged from 89.53% approximately 102.4%, 84.88% approximately 91.46% and 83.46% approximately 13.6%, respectively.CONCLUSION:
The established method can detect cotinine, phenylglyoxylic acid and mandelic acid simultaneously, which would be used in routine assessment and monitoring of the internal exposure to nicotine and styrene in human body.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Cotinina
/
Poluentes Ambientais
/
Glioxilatos
/
Ácidos Mandélicos
/
Cromatografia Gasosa-Espectrometria de Massas
Limite:
Humans
Idioma:
Zh
Revista:
Zhejiang Da Xue Xue Bao Yi Xue Ban
Assunto da revista:
MEDICINA
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
China