| 摘要 |
The present invention relates to a method for analyzing the presence of arsenic in a sample, including the following steps: (a) placing a sample, which is likely to contain arsenic, on a functionalized solid substrate and in contact with a DNA fragment comprising an ArsR protein-binding site, an ArsR protein being bound at said site, wherein the presence of arsenic causes the ArsR protein to separate from the DNA fragment; (b) incubating the sample in contact with said substrate; (c) removing the ArsR protein that was possibly separated from the DNA fragment by washing the substrate after the incubation carried out in step (b) is completed; and (d) using an ELISA technique to analyze the presence or absence of an ArsR protein remaining bound to the DNA fragment. The invention also relates to a kit for detecting arsenic in a sample. |
