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- W2061961427 abstract "Abstract Factors affecting the use of Ru(phen) 3 (ClO 4 ) 2 as an ion-interaction reagent for indirect fluorometric detection of simple analyte anions separated by non-suppressed ion chromatography were investigated with an aim to obtain a sensitive method for detection at ng ml −1 level. The intense UV π-π∗ transition band at 261 nm and the ligand-metal charge transition at 447 nm for excitation were compared at different eluent and chloride concentrations. The excitation wavelength of 447 nm was selected as it gave a higher sensitivity and a longer working range. Ru(phen) 3 (CIO 4 ) 2 was chosen as the eluent at 0.01 mM which gave the best signal to noise ratio. Detection limits (peak =2 σ) much lower than those reported in the literature using similar indirect photometric or fluorometric detection were obtained for F − , Cl − , Br − and NO 3 − at concentration (total amount) of 3 ng ml −1 (0.06 ng), 2ng ml −1 (0.04 ng), 5ng ml −1 (0.1 ng), and 5 ng ml −1 (0.1 ng) respectively. This will provide a non-suppressed ion chromatography procedure with sufficient sensitivity to meet the demand for trace anion analysis for environmental, industrial and other applications requiring detection limits at ng ml −1 concentration." @default.
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- W2061961427 date "1996-06-01" @default.
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- W2061961427 title "Indirect fluorometric detection for non-suppressed ion chromatographic separation of analyte anions using ruthenium(II) complex as ion-interaction reagent" @default.
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- W2061961427 doi "https://doi.org/10.1016/0003-2670(96)00029-3" @default.
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