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继稀土-铬天青S(CAS)-5-硝基邻菲啰啉(5-N-phen)-溴化十六烷基三甲铵(CTAB)的四元络合显色反应之后,又系统地研究了稀土-漂蓝6B(ECB)-5-硝基邻菲啰啉-溴化十二烷基三甲铵(DTAB)四元体系的显色反应。结果表明,ECB体系比CAS体系的灵敏度更高,络合物的摩尔吸光系数(ε)最高为1.95×10~5l·mol~(-1)·cm~(-1)(Er),按双波长求得的ε最高为2.39×10~5l·mol~(-1)·cm~(-1)(Yb)。
Following the quaternary complexation of the rare earth-chrome azure S (CAS) -5-nitro-phenanthroline (5-N-phen) and cetyltrimethylammonium bromide (CTAB) The color reaction of rare earth-blue 6B (ECB) -5-nitro-phenanthroline-dodecyltrimethylammonium bromide (DTAB) quaternary system was studied. The results showed that the ECB system was more sensitive than the CAS system. The highest molar extinction coefficient (ε) of the complex was 1.95 × 10-5 mol · cm -1 (Er) The wavelength of the highest ε is 2.39 × 10 ~ 5l · mol -1 (cm -1) (Yb).