Kinetic Spectrophotometric Determination of Trace Cadmium in Environmental Fresh Water with 5,10,15,20-Tetraphenyl-21<i>H</i>,23<i>H</i>-porphinetetrasulfonic Acid

• SASAKI Yuya

  Graduate School, Department of Interdisciplinary Research, University of Yamanashi Yamanashi Institute for Public Health and Environment

• YAMAMOTO Natsuki

  Graduate School, Department of Interdisciplinary Research, University of Yamanashi

• SUZUKI Yasutada

  Graduate School, Department of Interdisciplinary Research, University of Yamanashi

• UETA Ikuo

  Graduate School, Department of Interdisciplinary Research, University of Yamanashi

• KAWAKUBO Susumu

  Graduate School, Department of Interdisciplinary Research, University of Yamanashi

Bibliographic Information

Other Title

• Kinetic Spectrophotometric Determination of Trace Cadmium in Environmental Fresh Water with 5,10,15,20-Tetraphenyl-21H,23H-porphinetetrasulfonic Acid

Abstract

Cadmium-catalyzed complexation of zinc with 5,10,15,20-tetraphenyl-21H,23H-porphinetetrasulfonic acid (TPPS) was monitored spectrophotometrically. A kinetic parameter for the determination was obtained under kinetic consideration. Absorbance of zinc-TPPS at a fixed reaction time was proportional to the concentration of cadmium at pH 8 and 25°C. Tolerable concentration of interfering ions were 200, 200, 2000, 50, 500 and 1 μg L⁻¹ for Mg(II), Al(III), Ca(II), Fe(III), Zn(II) and Hg(II), respectively, in the determination of 20 μg L⁻¹ of cadmium, indicating Ca(II) and Mg(II) interferes with the analysis of natural fresh water. Such interference became tolerable at 5 mg L⁻¹ by the addition of an excess Ca(II) (50 mg L⁻¹) in the reacting solution of sample and cadmium standards. A calibration curve of Cd(II) was linear up to 100 μg L⁻¹ with a detection limit of 2 μg L⁻¹. The reliability of the proposed method was confirmed by the recovery test of cadmium spiked into tap, river and reservoir water samples.

Journal

• Analytical Sciences

  Analytical Sciences 31 (6), 551-555, 2015

  The Japan Society for Analytical Chemistry

Keywords

• Kinetic determination
• determination of cadmium
• porphyrin
• zinc
• water analysis

Details

• CRID: 1390001204258981760
• NII Article ID: 130005075707
• NII Book ID: AA10500785
• DOI: 10.2116/analsci.31.551
• ISSN: 13482246
• ISSN: 09106340
• NDL BIB ID: 026441020
• PubMed: 26063018
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026441020
• Web Site: https://link.springer.com/content/pdf/10.2116/analsci.31.551.pdf
• Web Site: https://link.springer.com/article/10.2116/analsci.31.551/fulltext.html
• Web Site: https://www.jstage.jst.go.jp/article/analsci/31/6/31_551/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2016046245
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • PubMed
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed