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  • Title: Spectrofluorimetric flow injection determination of trace amounts of periodate.
    Author: Ensafi AA, Dehahgi GB.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2001 Aug; 57(9):1739-43. PubMed ID: 11506024.
    Abstract:
    A sensitive, rapid and selective procedure is proposed for the flow injection determinations of periodate by spectrofluorometric detection. The method is based on the reaction of periodate with Alizarin Navy Blue in basic solution. The reagents and manifold variables influence on the sensitivity have been investigated and the optimum conditions are established. Periodate can be determined for the range of 0.250-5.00 microg ml(-1) with a limit of detection of 0.08 microg ml(-1), and with a sample rate of 15 +/- 2 samples h(-1). The relative standard deviations for eight replicate determination of 0.500 and 5.00 microg ml(-1) was 1.3 and 1.1%, respectively. Periodate can be determined in the presence of iodate and bromate. The proposed method was used to determination of periodate in water samples.
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