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Sample processing method for determination of impurity ions in solid samples by ion chromatography
Ion chromatography (IC) is a liquid chromatography technique developed in the 1970s. It is mainly used for the analysis of anions, cations or ionic compounds in aqueous solutions. It is the preferred method for the analysis of anions. For the determination of trace components, with the continuous improvement of the sensitivity, accuracy and automation of the instrument, the time-consuming, tedious and pre-treatment of the sample that is easy to introduce errors has become a difficult point in the analysis process. In the aspect of sample pretreatment, the corresponding sample processing method is adopted for different samples, so that the sample processing process is simple, fast, and real. It has become an important work for ion chromatography workers to ensure the accuracy and reliability of ion chromatography measurement results. According to the different samples encountered in the work, the author introduced the determination of typical solid samples by ion chromatography ...