Isophthaldihydroxamic acid as a spectrophotometric reagent for the determination of molybdate ion |
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| Authors: | F Salinas M Jimnez-Arrabal |
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| Institution: | Department of Analytical Chemistry, Faculty of Sciences, University of Extremadura, Badajoz, Spain |
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| Abstract: | Isophthaldihydroxamic acid produces colored solutions with molybdate ions in basic medium. The resultant product is extracted into a toluenic solution of trioctylmethylammonium chloride (Adogen). The yellow color obtained in the organic solvent (molar absorptivity 6.050 liters · mol−1 · cm−1 at a wavelength of 350 nm) has been used for the spectrophotometric determination of molybdenum in the range of 1.3 to 6 ppm with a relative error of the mean value of 1.3%. |
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