Field Determination of Leachable Chromium(VI) in Soil by Ultrasonic Extraction-Diphenylcarbazide Colorimetry

DOI NDL Digital Collections Web Site Web Site 3 Citations 18 References Open Access
  • Kawakubo Susumu
    Department of Materials Design Chemistry, Interdisciplinary Graduate School of Medical and Engineering Science, University of Yamanashi
  • Suzuki Yasutada
    Department of Materials Design Chemistry, Interdisciplinary Graduate School of Medical and Engineering Science, University of Yamanashi
  • Yamanoi Takashi
    Department of Materials Design Chemistry, Interdisciplinary Graduate School of Medical and Engineering Science, University of Yamanashi
  • Maruta Toshihisa
    Research and Development Center, Taiheiyo Consultant Co., Ltd.
  • Nagase Takahiro
    Research and Development Center, Taiheiyo Consultant Co., Ltd.

Bibliographic Information

Other Title
  • 超音波抽出‐ジフェニルカルバジド吸光光度法による土壌中の溶出性クロム（ＶＩ）の現場定量
  • 超音波抽出-ジフェニルカルバジド吸光光度法による土壌中の溶出性クロム(6)の現場定量
  • チョウオンパ チュウシュツ ジフェニルカルバジド キュウコウ コウドホウ ニ ヨル ドジョウチュウ ノ ヨウシュツセイ クロム 6 ノ ゲンバ テイリョウ

Search this article

Description

A simple and fast field method was developed for the determination of leachable Cr(VI) in soil by ultrasonic extraction and colorimetry with 1,5-diphenylcarbonohydrazide. Extraction from 2.0 g of a sample with 20 mL of water was accomplished with 30 min under ultrasonication (46 kHz, 15 W). The extraction was repeatable with a relative standard deviation of 10%. The extraction characteristics were discussed based on elution kinetics. The water-leachable concentrations of Cr(VI) or the total Cr were comparable to those obtained by the shaking extraction (6 h) used in Notification 46 of Environmental Agency of Japan. A detection limit of 0.003 mg/L was obtained by a laboratory-made colorimeter with a RGB light-emitting diode. The proposed method is applicable for soil samples containing no Cr(VI)-reducing matters, e.g., humic substances.<br>

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 56 (4), 231-235, 2007

    The Japan Society for Analytical Chemistry

Citations (3)*help

See more

References(18)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top