Determination of Cadmiumin (Ⅱ) in River Water and Rice Samples by Colloidal Gold Immunochromatography Test Strip
YANG Bo
LIU Zhiping
JI Pei
LIN Youyou
XU Wanyan
WANG Song
LI Wenhui
LI Ji
XU Ting
Abstract：A colloidal gold immunochromatography test strip was developed for the rapid detection of cadmium(Ⅱ) in river water and rice samples.Results showed that the limit of detection of Cd (Ⅱ)-EDTA in PBS by the strip test was 20 μg/L.This assay showed little cross reactivity with Hg(Ⅱ)-EDTA and Fe(Ⅲ)-EDTA and negligible cross reactivity with Cr(Ⅱ)-EDTA,Pb(Ⅱ)-EDTA and Cu(Ⅱ[)-EDTA.The strip showed good storage stability at room temperature for 18 weeks.The strip was applied for the detection of Cd(]Ⅱ) in fiver water and rice samples,with the limit of detection at 5 μg/Land 0.5 μg/g,respectively.The results of strip test were in agreement with those of ICP-MS,indicating this simple strip test is a suitable tool for screening Cd(Ⅱ) in river water and rice samples.
Keywords：cadmium(Ⅱ)monoclonal antibodyimmunochromatography test shipriver waterricedetection
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 119-125 )