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离子色谱阀切换法测定己二酸中痕量阴离子

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摘要 摘要建立了离子色谱阀切换测定己二酸中痕量阴离子的方法。使用SH-021离子排斥柱将待测痕量阴离子C1-、NO3-、SO4^2-分离出来,再将分离出来的离子通过SH-011浓缩柱进行浓缩富集,最后通过阀切换将浓缩柱中阴离子使用Na2CO3(2.0mmol/L)带人SH-015离子分离柱中分离后分析。方法灵敏度高,重现性好,回收率在87.5%-112.6%,适用于高纯度试剂中痕量阴离子检测。
出处 《中国无机分析化学》 CAS 2012年第A01期31-32,共2页 Chinese Journal of Inorganic Analytical Chemistry
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