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- W2079955846 abstract "A determination method for mercury (Hg) ion in river water has been developed by reversed phase HPLC. The Hg(II) ion was quantitatively extracted into benzene from an acidic solution as 5-methyl-1,3,4-thiodiazole-2-thiol (MTT) chelate. The extracted Hg-MTT chelate was then separated on a C18 column with an eluent of methanol/water/0.01 mol/L MTT (72:26:2, v/v) and detected at 270 nm. The correlation coefficients of the calibration curves obtained with 5 mL Hg standards were more than 0.999 in the range of 0.1 to 10 μg/mL (ppm). The detection limit of the Hg ion in 5 mL of water was 0.05 ppm by a signal to noise ratio of 3. Relative standard deviations of peak areas (N = 6) for 5 and 0.5 ppm Hg standards were less than 1%. Effects of foreign ions on the determination of 0.4 ppm Hg were investigated with 57 metal ions. Almost none of the ions interfered except for Au(III), Cu(II), Pt(IV), Ag(I), Cr(VI), and Pd(II) ions. The recoveries with a spiked river water sample for 5 and 0.5 ppm Hg ion (N = 6) were 10..." @default.
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- W2079955846 date "2010-03-09" @default.
- W2079955846 modified "2023-09-23" @default.
- W2079955846 title "DETERMINATION OF MERCURY ION IN RIVER WATER BY SOLVENT EXTRACTION WITH 5-METHYL-1,3,4-THIODIAZOLE-2-THIOL FOLLOWED BY REVERSED PHASE HPLC" @default.
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- W2079955846 doi "https://doi.org/10.1080/10826071003684265" @default.
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