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- W2357746826 abstract "A extraction spectrophotometry was established for the determination of gallium in smelting materials of yellow phosphorus electric dust using rhodamine B as chromogenic agent and toluene-MIBK as extraction agent.The sample was dissolved in 10 %(V/V) sulfuric acid and then the titanium trichloride was added to reduce iron to ferrous.The complex formed by rhodamine B and gallium was extracted with toluene-MIBK in 6 mol/L HCl.After organic phase was washed with thiourea,titanium trichloride and rhodamine B solution,its absorbance was measured at maximum absorption wavelength of 560 nm.The system error of method caused by sample decomposition was eliminated by correction method.The absorbance was linear to the concentration of gallium in range of 0-1.0 μg/ mL with correlation coefficient of 0.999.The results of proposed method were compared with those obtained by conventional dissolution method,and both were consistent.The gallium in six smelting material samples of yellow phosphorus electric dust was determined,with relative standard deviation(RSD) less than 10 %,and the recoveries of standard addition between 96 %-103 %." @default.
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- W2357746826 date "2013-01-01" @default.
- W2357746826 modified "2023-09-23" @default.
- W2357746826 title "Determination of gallium in smelting materials of yellow phosphorus electric dust by extraction spectrophotometry with rhodamine B" @default.
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