(中南工业大学化学系，长沙410083)
摘 要: 用分光光度法采用1-(2-吡啶偶氮)-2-荼酚作显色剂，用目标检测因子分析程序处理数据，不经分离和富集同时测定铜锌锰三组分混合体系。选择波长范困500~600nm， pH8.8~10.6。线性测定范困为0~40×10-5g/25mL，检测限为10-8g/mL回收率为98%~103%。
关键字: 因子分析 铜锌锰同时测定 废水 分光光度法
USING FACTOR ANALYSIS SPECTROPHOTOMETRY
（Department of Chemistry,Central South University of Technology,Changsha 410083）
Abstract:A method for simultaneously spectrophotometric determination of Cu,Zn, Mn in their mixture by factor analysis of target testing has been developed. 1-(2-pyridylazo)-2-naphthol was used as development reagent. The selected wavelength range was from 500 to 600nm, and pHrange was 8.8~10.6. In the trace range of Cu, Zn,Mn from 0~1.6×10-6g/mL the beer' s law was obeyed. The detection limit was 10-8g/mL. The recovery ratio was 98%~103%.
Key words: factor analysis simultaneous determination of Cu, Zn, Mn photometric analysis
