Determination of molybdenum using ESR method

• Minakata Kayoko

  Department of Legal Medicine, Hamamatsu University School of Medicine

• Suzuki Osamu

  Department of Legal Medicine, Hamamatsu University School of Medicine

Bibliographic Information

Other Title

• 電子スピン共鳴法を用いたモリブデンの定量法
• デンシ スピン キョウメイホウ オ モチイタ モリブデン ノ テイリョウホウ

Abstract

A molybdenum (Mo) thiocyanate complex, Mo(SCN)₅ had been used previously for the determination of Mo in seawater using electron spin resonance (ESR) method. In the present ESR study, a reduced Mo complex with diethyldithiocarbamate (DDC), Mo-DDC, was extracted with cycohexanol and used for the determination of Mo. Mo-DDC shows a peak at g = 1.980 with peak-to-peak width of 0.3 mT, whereas Mo(SCN)₅ shows a peak at g = 1.940 with peak-to-peak width of 1.2 mT. DDC reacts with Mo more specifically than SCN^-: The peak height of Mo-DDC is nearly 30 times that of Mo(SCN)₅ produced from the solution containing both DDC and SCN^- with the molar ratio of DDC: SCN^- = 1 : 30. The limit of detection and the time required for measurement are 0.1 ng and 5 min, respectively in the present method, whereas those are 5 ng and 60 min, respectively in the previous SCN method.

Journal

• Biomedical Research on Trace Elements

  Biomedical Research on Trace Elements 15 (1), 82-84, 2004

  Japan Society for Biomedical Research on Trace Elements

Keywords

• molybdenum
• diethyldithiocarbamate
• thiocyanate
• stannous chloride
• electron spin resonance

Details

• CRID: 1390001204366344576
• NII Article ID: 130004456748
• NII Article ID: 10028287162
• NII Book ID: AN10423256
• DOI: 10.11299/brte.15.82
• ISSN: 18801404
• ISSN: 0916717X
• NDL BIB ID: 6914104
• Web Site: http://id.ndl.go.jp/bib/6914104
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6914104
• Web Site: https://search.jamas.or.jp/link/ui/2006000072
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
• Abstract License Flag: Disallowed