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将Luminol（Lu）、S2O8－Ag+化学发光反应体系中的发光剂Lu、S2O8用离子交换固定法固定在阴离子交换树脂上，串入流动注射系统中．当一定量的洗脱剂被注入阴离子交换柱时，洗脱下来的Lu和S2O8与分析物Ag+发生化学反应，产生化学发光，实现对Ag+的在线检测．此法检出限为1×10－8g／mLAg，线性范围为5×10－5－3×10－8g／mL，RSD为3．5％，单次测定在1分钟内能完成．已用于印相废液中银的测定，结果满意．
Luminol (Lu), S2O8-Ag + chemiluminescence reaction system luminant Lu, S2O8 immobilized by ion exchange fixation on the anion exchange resin, string into the flow injection system. When a certain amount of eluent is injected into the anion exchange column, the eluted Lu and S2O8 chemically react with the analyte Ag + to generate chemiluminescence and achieve online detection of Ag +. The detection limit of this method is 1 × 10-8g / mLAg, linear range of 5 × 10-5-3 × 10-8g / mL, RSD of 3.5%, a single measurement can be completed within 1 minute. Has been used for the determination of silver in printing waste liquid, the result is satisfactory.