- Volume 41 Issue 5
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Comparisons of Urinary Arsenic Analysis by Pre-reductant for Preconditioning via the FI-HG-AAS Method
FI-HG-AAS를 이용한 전처리 과정에서 사용되는 예비환원제의 종류에 따른 요중 비소 분석결과 비교
- Choi, Seung-Hyun (Institute for Occupational & Environmental Health, Korea University) ;
- Choi, Jae Wook (Institute for Occupational & Environmental Health, Korea University) ;
- Cho, YongMin (Institute for Occupational & Environmental Health, Korea University) ;
- Bae, Munjoo (Graduate School of Public Health, Yonsei University)
- Received : 2015.07.06
- Accepted : 2015.10.13
- Published : 2015.10.28
Objectives: The method of analyzing urinary arsenic by flow injection hydride generation atomic absorption spectrometry (FI-HG-AAS) is generally used because it shows relatively greater sensitivity, low detection limits, low blocking action, and is simple to operate. In this study, the results of analysis according to three pre-reductants commonly used in the FI-HG-AAS method were compared with each other. Methods: To analyze urinary arsenic, nineteen urine samples were collected from adults aged 43-79 years old without occupational arsenic exposure. Analysis equipment was FI-HG-AAS (AAnalyst 800/FIAS 400, Perkin- Elmer Inc., USA). The three pre-reductants were potassium iodide (KI/AA), C3H7NO2S (L-cysteine), and a mixture of KI/AA and L-cysteine (KI/AA&L-cysteine). Results: In the results of the analysis, the recovery rate of the method using KI/AA was 82.3%, 95.7% for Lcysteine, and 123.5% for KI/AA and L-cysteine combined. When compared with the results by use of high performance liquid chromatography inductively-coupled plasma mass spectrometry (HPLC-ICP-MS), the method using L-cysteine was the closest to those using HPLC-ICP-MS (
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