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原子捕集技术首先由Stphens提出,West等人进行了系统研究。作者对这一技术作过评述和研究。原子捕集是一种在火焰原子吸收测量中浓缩待测原子的预富集技术。与溶剂萃取或离子交换等常规预富集方法比较,原子捕集技术具有明显优点:不必加入化学试剂,省去样品溶液的制备时间,避免试样的化学前处理或化学预浓缩操作中的污染或损失,节省分析时间,提高分析灵敏度和准确度。
Atomic capture technology was first proposed by Stphens, West et al. Conducted a systematic study. The author reviews and studies this technique. Atomic capture is a preconcentration technique that concentrates the atoms to be tested in flame atomic absorption measurements. Compared with the conventional pre-enrichment methods such as solvent extraction or ion exchange, the atomic capture technique has the obvious advantages of eliminating the need for chemical reagents, eliminating the need for sample solution preparation and avoiding contamination of the sample pretreatment or chemical preconcentration Or loss, save analysis time and improve analysis sensitivity and accuracy.