Determination of Benzophenones in River-water Samples Using Drop-based Liquid Phase Microextraction Coupled with Gas Chromatography/Mass Spectrometry

• OKANOUCHI Noriya

  Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University

• HONDA Hidehiro

  Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University

• ITO Rie

  Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University

• KAWAGUCHI Migaku

  Bio-Medical Standard Section, National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST)

• SAITO Koichi

  Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University

• NAKAZAWA Hiroyuki

  Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University

Abstract

In this study, a fast, simple and highly sensitive method that employs liquid phase microextraction (LPME)-GC/MS was developed to analyze trace benzophenones (BPs) in river-water samples. The tip of a 10-µl microsyringe filled with toluene (3 µl) was inserted into 2 ml of a river-water sample, and fixed at 5 mm below the water surface of the sample. A toluene droplet was made on the tip of the syringe, and extraction was conducted while agitating at 500 rpm for 15 min. After extraction, 2.0 µl of the extract was put into the syringe again, and directly introduced to GC/MS. The limits of detection (S/N = 3) and quantification (S/N >10) of BPs were 10 and 50 pg ml^-1, respectively. The results of a recovery test ranged over 93.3 - 101.1% (RSD, less than 10%; n = 6). The results of BPs determinations in the river-water samples showed that BPs (ND - 68.9 pg ml^-1) were detected.

Journal

• Analytical Sciences

  Analytical Sciences 24 (5), 627-630, 2008

  The Japan Society for Analytical Chemistry

Keywords

• Analytical Chemistry

Details

• CRID: 1390001204256676736
• NII Article ID: 130004441654
• NII Article ID: 10021100147
• NII Book ID: AA10500785
• DOI: 10.2116/analsci.24.627
• ISSN: 13482246
• ISSN: 09106340
• NDL BIB ID: 9483068
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9483068
• Web Site: https://link.springer.com/content/pdf/10.2116/analsci.24.627.pdf
• Web Site: https://link.springer.com/article/10.2116/analsci.24.627/fulltext.html
• Web Site: http://www.jstage.jst.go.jp/article/analsci/24/5/24_5_627/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed