摘要
提出了在聚乙烯醇存在下,Fe(Ⅲ)-磺基水杨酸-甲基紫三元配合物光度法测定Fe(Ⅲ)的方法。该法灵敏度高(ε=3.44×10~5L·mol^(-1)·cm^(-1)),选择性及精密度均好,用于水中痕量铁的测定,结果满意。
A photometric method of determination of trace amounts of iron by the formation of a ternary complex among SSA, MV and PVA was described. The molar absorptivity of the color reaction was found to be (ε_(510)) 3.44×10~5L·mol^(-1)·cm^(-1). Beer's law holds in the range of 0～7.0μg of Fe(Ⅲ) per 50ml of solution. This method has been applied to the determination of iron in water samples and the RSD's found were less than 3.1%.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2003年第10期602-603,共2页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
