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Method for accurately quantifying a chemical substance contained in a sample solution at a significantly low concentration of not more than 1×10−8M
Method for accurately quantifying a chemical substance contained in a sample solution at a significantly low concentration of not more than 1×10−8M
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机译:准确定量样品溶液中所含化学物质的方法,浓度不超过1×10-8M的极低浓度
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摘要
Provided is a method for accurately quantifying a chemical substance contained in a sample solution at a significantly low concentration of not more than 1×10−8M. A measurement system used for the method includes a counter electrode 13, a first reference electrode 12, a first working electrode 11a, a second working electrode 11b, a second reference electrode 14 and a gel-coated electrode 15. The gel-coated electrode 15 is electrically equivalent to the second working electrode 11b. The gel-coated electrode 15 comprises an electrode body 31 and a gel 34. The surface of the electrode body 31 is coated with the gel 34. The gel 34 contains a standard electrolyte and an ionic liquid. The gel 34 contains no water. The ionic liquid is hydrophobic and nonvolatile. The ionic liquid is composed of a cation and an anion. The standard electrolyte is composed of the cation and a halide ion.
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