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应用胶束增溶光度法测定钼可以提高灵敏度和稳定性。以邻位酚酞族指示剂—季胺盐光度法测定钼,ε可达4.2-6.25×10~4。我们在0.1-0.25N 盐酸介质中,以溴邻苯三酚红(BPR)一十六烷基三甲基溴化铵(CT.AB)光度法测定钼,λ_(最大)=630nm,ε=6.67×10~4,Mo∶BPR∶CTAB=1∶1∶2,0—70微克 Mo/50毫升符合比尔定律。以抗坏血酸、EDTA、KF 作掩蔽剂,除 W(Ⅵ)外,有四十余种阴阳离子不于
Determination of molybdenum using micellar solubilization spectrophotometry can improve the sensitivity and stability. Determination of molybdenum with ε - alkylamine phthalocyanine - quaternary ammonium salt photometry, ε up to 4.2-6.25 × 10 ~ 4. We measured molybdenum in a 0.1-0.25 N hydrochloric acid medium with bromopyrogallol red (BPR) hexadecyltrimethylammonium bromide (CT.AB) spectrophotometry, λ max (max) = 630 nm, ε = 6.67 × 10 ~ 4, Mo: BRP: CTAB = 1: 1: 2, 0 ~ 70 μg Mo / 50 ml, which complies with Bill’s law. With ascorbic acid, EDTA, KF as a masking agent, in addition to W (Ⅵ), there are more than forty kinds of anion and cation is not