Method for detecting multiple anions by using indicator displacement colorimetric sensor array
A sensor array, anion technology, applied in the field of sensors, can solve the problem of cross-interference between indicators
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[0048] An indicator displacement colorimetric sensor array for multiple anion detection methods including chelation of metal ion colored chelators to corresponding metal ions, anion displacement, colorimetric readout, and sample determination,
[0049] Metal ion colored chelating agents and their corresponding metal ion acceptor chelates in aqueous solution are used as anion indicator materials; in order to detect various anions, 18 kinds of metal colored chelating compounds are placed in a 3x6 18-well plate as an anion indicator material. The detection unit extracts the color information corresponding to each colored chelate, summarizes all these color information, and constructs an array system; based on the principle that metal ions can form precipitation with anions, and in the case of excessive anions, part of the precipitation is further dissolved. Ten kinds of anions and metal colored chelating agents compete for the reaction of metal ions; by extracting the color inform...
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