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在分析化学中,离子对形成的应用越来越广泛,其主要优点是可与各种分析技术,如萃取和分光光度法结合,从而提高测定的灵敏度和选择性。文献中关于利用离子对的形成来测定有机物的报道,绝大多数是采用由酸碱染料形成离子对的分光光度技术。利用带电金属络合物形成离子对用于分析目的,虽早被人们所熟悉,可是由于这些离子对比前述的颜色弱,用分子分光光度法测定灵敏度低,所以未能获得迅速发展。然而可以通过形成的金属络合物用原子吸收分光光度法间接测定有机物。由于此技
In analytical chemistry, the application of ion pair formation is becoming more and more widespread. The main advantage is the combination of various analytical techniques such as extraction and spectrophotometry to improve the sensitivity and selectivity of the assay. The literature on the use of ion pair formation to determine the reported organic matter, the vast majority of the use of acid-base dyes to form ion pairs spectrophotometry. Although ion pair formation using charged metal complexes has long been known for analytical purposes, these ions have not been rapidly developed due to their low sensitivity to molecular spectrophotometry due to their weaker color compared to the previous ones. However, the organic compounds can be indirectly measured by atomic absorption spectrometry through the formed metal complex. Due to this technique