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泡塑吸附分离萃取光度法测定粉煤灰中的镓

赵慧玲, 刘建

赵慧玲, 刘建. 泡塑吸附分离萃取光度法测定粉煤灰中的镓[J]. 岩矿测试, 2010, 29(4): 465-468.
引用本文: 赵慧玲, 刘建. 泡塑吸附分离萃取光度法测定粉煤灰中的镓[J]. 岩矿测试, 2010, 29(4): 465-468.
ZHAO Hui-ling, LIU Jian. Determination of Gallium in Coal Ash Samples by Photometry after Separation and Pre-concentration with Polyurethane Foam Adsorption-Solvent Extraction[J]. Rock and Mineral Analysis, 2010, 29(4): 465-468.
Citation: ZHAO Hui-ling, LIU Jian. Determination of Gallium in Coal Ash Samples by Photometry after Separation and Pre-concentration with Polyurethane Foam Adsorption-Solvent Extraction[J]. Rock and Mineral Analysis, 2010, 29(4): 465-468.

泡塑吸附分离萃取光度法测定粉煤灰中的镓

Determination of Gallium in Coal Ash Samples by Photometry after Separation and Pre-concentration with Polyurethane Foam Adsorption-Solvent Extraction

  • 摘要: 试验了在盐酸介质中聚氨酯泡沫塑料吸附分离镓的性能,将该性能用于粉煤灰分离镓的预处理过程,罗丹明B萃取光度法定量测定镓含量。结果表明,室温条件下,在6 mol/L 盐酸溶液中,聚氨酯泡沫塑料对镓有良好的吸附性能,90 min可达吸附平衡,饱和吸附量为每克泡塑可吸附42 mg 镓;被吸附的镓可用0.5 mol/L 氯化铵溶液定量洗脱;用罗丹明B萃取光度法测定镓含量时,镓浓度在0~1.0 μg/mL服从比尔定律,检出限为0.008 mg/L。测定粉煤灰样品中镓的含量,加标回收率在103%~107%,相对标准偏差(RSD,n=20)为1.5%,富集分离效果明显,选择性高。
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出版历程
  • 收稿日期:  2009-09-26
  • 修回日期:  2009-12-20

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