Non-suppressed ion chromatography of inorganic anions, magnesium and calcium ions using a pyromellitate eluent and its application in evaluating environmental water quality
Non-suppressed ion chromatography of inorganic anions, magnesium and calcium ions using a pyromellitate eluent and its application in evaluating environmental water quality
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均苯四酸盐洗脱液的无机阴离子、镁和钙离子非抑制离子色谱及其在环境水质评价中的应用
DOI：
10.1016/0021-9673(95)01214-1
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发表时间：
1996
影响因子：
4.1
通讯作者：
J. Fritz
中科院分区：
文献类型：
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作者：
K. Ohta;Kazuhiko Tanaka;J. Fritz
建立了以均苯四甲酸盐(l，2，4，5-benzenetetracarboxylate)-methanol-water为洗脱剂，硅胶为阴离子交换柱，同时测定环境水中常见无机阴离子HCO3-−、镁离子和钙离子的离子色谱-紫外分光光度检测方法。阴离子是间接检测到的，而镁离子和钙离子是直接检测到的，这是因为它们之间形成了具有很强紫外吸收的络合物。该方法已成功地用于各种河水中常见阴离子、镁和钙的同时测定。
A simple, sensitive and convenient ion chromatographic (IC) method with UV photometric detection using pyromellitate (l,2,4,5-benzenetetracarboxylate)-methanol-water as the eluent on a silica-based anion-exchange column was established for the simultaneous determination of common inorganic anions including HCO3−, Mg2+and Ca2+in environmental waters. The anions were detected indirectly, whilst Mg2+and Ca2+were detected directly because complexes having strong UV absorption were formed between pyromellitate and these cations. The proposed method was successfully applied to the simultaneous determination of the common anions, Mg2+and Ca2+in various river water samples.
Kazuichi Hayakawa、Kyoko Nomura、Motoichi Miyazaki：“通过间接光度检测离子色谱法在线去除干扰碱土金属，同时测定碳酸氢盐、氯化物、硝酸盐和硫酸盐” Analytical S
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