Journal
JOURNAL OF CHROMATOGRAPHY B
Volume 750, Issue 1, Pages 163-169Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0378-4347(00)00385-6
Keywords
3-hydroxypropylmercapturic acid
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A sensitive and specific high-performance liquid chromatographic-tandem mass spectrometric (HPLC-MS-MS) method was developed for the determination of 3-hydroxypropylmercapturic acid (3-HPMA) in human urine. Samples were extracted using ENV+ cartridges and then injected onto a C8 Superspher Select B column with acetonitrile and formic acid as eluent (5:95, v/v). N-Acetylcysteine was used as internal standard for HPLC-MS-MS. Linearity was given in the tested range of 50-5000 ng/ml urine. The limit of quantification was 50 ng/ml. Precision, as C.V., in the tested range of 50-5000 ng/ml was 1.47-6.04%. Accuracy ranged from 87 to 114%. 3-HPMA was stable in human urine at 37 degreesC for 24 h. The method was able to quantify 3-HPMA. in urine of non-smokers and smokers. (C) 2001 Elsevier Science B.V. All rights reserved.
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