Journal
ANALYTICAL SCIENCES
Volume 25, Issue 8, Pages 1033-1037Publisher
JAPAN SOC ANALYTICAL CHEMISTRY
DOI: 10.2116/analsci.25.1033
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Funding
- Ministry of Health, Labour and Welfare of Japan
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A simple and highly sensitive method that involves miniaturized hollow fiber assisted liquid-phase microextraction (HF-LPME) with in situ acyl derivatization and GC-MS was developed for the determination of benzophenone (BP) and related compounds in human urine samples. The limits of detection (S/N = 3) and quantification (S/N > 10) of BPs in human urine samples are 0.01 to 0.05 and 0.05 to 0.2 ng ml(-1), respectively. The average recoveries of BPs (n = 5) in human urine samples spiked with 10 and 50 ng ml(-1) BPs are 93.1 to 106.7% (RSD: 1.5 to 8.4%) and 96.3 to 101.5% (RSD: 3.0 to 7.7%), respectively. When the proposed method was applied to human urine samples, BPs were detected at the sub ng ml(-1) level.
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