An automated sequential injection system incorporating a sample pretreatment module was developed for the separation and preconcentration of ultra-trace copper in seawater without dilution.
将样品预处理模块与自动化顺序注射系统相结合，建立了未经稀释的海水中痕量铜的分离富集方法。
Sample stacking, an on-column preconcentration technique for capillary electrophoresis was reviewed with 51 references.
评叙了样品堆积，一种毛细管电泳提高检测灵敏度的柱上浓缩技术。
A review on analytical progress of rhenium was given during recent years, including decomposition of sample, separation and preconcentration as well as determination of rhenium.
本文综述了近年来国内外铼的分析进展，包括了矿样的分解、铼的分离富集以及铼的测定。
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