论文部分内容阅读
本文的研究表明,在pH2.0～2.5范围内,稀土(Ⅲ)与三氯偶氮氯膦及结晶紫,能形成三元配合物,其分子组成比为1:2:2,λmax=605nm,RE_xO_y量在0～10μg/25ml范围内符合比尔定律。其表观摩尔吸光系数为~εLa=2.65×10~5L·mol~(-1)·cm~(-1);~εCe=2.71×10~6L·mol~(-1)·cm(-1)。用所研究的方法测定了铜合金及铝合金中稀土总量,结果令人满意。
The results show that the molar ratio of rare earth (Ⅲ) to trichloro-chlorophosphonazo and crystal violet can form ternary complex with a molecular ratio of 1: 2: 2 and λmax = 605nm , Beer’s law is obeyed in the range of 0 ~ 10μg / 25ml for RE_xO_y. The apparent molar absorptivity is ~ εLa = 2.65 × 10 ~ 5L · mol -1 · cm -1; ~ εCe = 2.71 × 10 ~ 6L · mol -1 · cm -1 ). The total amount of rare earth in copper alloy and aluminum alloy was determined by the method studied, and the result was satisfactory.