[Determination of n-butyl alcohol in urine by headspace solid-phase microextraction coupled with gas chromatography].
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi
; 38(12): 932-935, 2020 Dec 20.
Article
em Zh
| MEDLINE
| ID: mdl-33406560
ABSTRACT
Objective:
To establish a headspace solid phase microextraction-gas chromatography method for determination of n-Butyl alcohol in urine.Methods:
In October 2019, the n-butyl alcohol in urine was extracted with a polydimethylsiloxane/divinylbenzene (PDMS/DVB) solid-phase microextraction head. The conditions of salt amount, extraction temperature, extraction time and desorption time were optimized. The separation was performed on HP-5 (30 m×0.32 mm×0.25 µm) capillary column and detected with flame ionization detector. The quantification was based on the external standard curve.Results:
The linear relationship of n-butyl alcohol in urine was good in the range of 0.04-3.00 mg/L, the correlation coefficient was 0.999, the detection limit of the method was 0.04 mg/L, the recovery was 77.4%-102.8%, the intra-run precision was 3.67%-8.11%, and the inter-assay precision was 4.94%-6.90%.Conclusion:
The method has simple operation, high concentration efficiency and high sensitivity, and it is suitable for the determination of n-butyl alcohol in urine of occupational exposure to n-butyl alcohol.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
1-Butanol
/
Microextração em Fase Sólida
Idioma:
Zh
Ano de publicação:
2020
Tipo de documento:
Article