Method for determining urine arsenic by electrochemical hydrogenation generation-atomic fluorescence spectrum combining technology
An atomic fluorescence spectrometry and hyphenated technology, which is applied in fluorescence/phosphorescence, preparation of test samples, measurement devices, etc., can solve problems such as insufficient detection results, hinder popularization and application, and affect detection results, and reduce reagent consumption. , Improve the detection sensitivity and reduce the effect of reagent contamination
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[0028]The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only used to illustrate the specific technical methods and operation steps adopted by the present invention, and should not be understood as limiting the present invention.
[0029]The electrochemical hydride generation (ECHG) method used in the present invention is used as a method to replace the traditional hydride generation (CHG) sample introduction. In ECHG, the generation of hydrides is generally achieved by electrolyzing the sample solution in an electrolytic cell. Some ionic hydrides are generated Elements such as As, Se, Sb, Ge, etc. combine with the atomic hydrogen produced by electrolysis on the cathode, and are reduced to the corresponding hydride before being sent to the atomic spectrum for detection. The working principle and technical solution content of the present invention are further described below according...
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