1引言分析化学中不同分析手段的结合或联用，以提高分析灵敏度和检出限，一直是分析工作者努力的方向。作者就电化学和火焰原子吸收光谱法在联用方面作了探索；采用自行研制的微型床式电化学预富集池，极大地提高了原子吸收光谱仪的灵敏度。以研究测铜为例富集50mL溶液能将火焰 1 Introduction Analytical chemistry, the combination of different analytical tools or in combination, in order to improve the analytical sensitivity and detection limit, has been the direction of the analyst’s efforts. The author explored the combination of electrochemical and flame atomic absorption spectrometry (FAAS). The micro-bed electrochemical pre-enrichment pool was developed by ourselves, which greatly enhanced the sensitivity of atomic absorption spectrometer. To study the case of measuring copper enrichment 50mL solution can flame