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The optimization of 2-thiothiazolidine-4-carboxylic acid back extraction in urine and determination by HPLC
Author(s): LU Yan-yan, XIAO Qing-feng, JIANG Kai-you, QIN Wen-hua, YU Shan-fa
Pages: 473-
474
Year: 2012
Issue:
6
Journal: Chinese Journal of Industrial Hygiene and Occupational Diseases
Keyword: Carbon disulfide; 2-thiothiazolidine-4-carboxylic acid (TTCA); Urine; Chromatography; high pressure liquid;
Abstract: 目的 建立尿中2-硫代噻唑烷-4-羧酸(TTCA)测定的反萃取高效液相色谱法.方法 取尿1 ml,分别加入2mol/L盐酸和水各0.5 ml,摇匀,加入4ml乙醚,振荡萃取2min后取出下层水相于具塞试管,用4ml乙醚再次萃取,合并2次萃取乙醚后取4ml,加入硼砂-磷酸二氢钾缓冲溶液2ml,振荡萃取2 min后取下层水相测定.采用C18色谱柱分离,紫外检测器检测,波长为273nm,流速为1.1ml...
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