Application of Test Kits for Water Samples to Screening Contaminated Soils for Chromium (VI)

作者：Sakai Hiroyuki; Imai Kazumichi; Suzuki Yoshihiro; Wada Shin Ichiro^*

来源：Journal of the Faculty of Agriculture, Kyushu University, 2012, 57(2): 481-483.

DOI：10.5109/25209

• chromium (VI)
• screening
• soil pollution
• test kit

To develop a screening method for chromium (VI) in soils, test kits normally used for water samples were applied to the water extracts from two chromium (VI)-contaminated reference soil samples. The chromium (VI) contents determined by water extraction at an ambient temperature and detection by commercial test kits amounted to 71% and 34% of the certified content for sandy loam and clay soil, respectively. The recovery increased to 82% and 59% for respective soil when the extraction was made with a mixed sodium carbonate-sodium hydroxide solution that is employed in the standard method for soil chromium. These results indicate that the extraction with water or alkaline solution combined with chromium (IV)-detection by test kits works as a rapid screening method for chromium (VI) in contaminated soils.

• 出版日期2012-9