碘化物法与硫脲法是目前测定微量铋最广泛应用的方法,但灵敏度较低。文献对光度法测定铋作了详细的评述,在数目繁多测定铋的试剂中,寻找一个避免用有机溶剂革取、而灵敏度高,选择性好,手续简便测定微量铋的方法是一个十分有意义的工作。含有硫的某些有机试剂作为铋的分析试剂是十分有前途的。为此,有人提出以二硫代吡啶甲烷测定铋。文献首次提出在活化剂存在下测定微量铋的新方法,为微量铋的测定作了可贵的努力。我们在文献的基础上考察了 Iodide method and thiourea method is the most widely used method for the determination of trace bismuth, but the sensitivity is low. The literature provides a detailed review of the spectrophotometric determination of bismuth. Among a large number of reagents for the determination of bismuth, it is of great interest to find a method which avoids the use of organic solvents and has high sensitivity, good selectivity and simple procedures for the determination of trace amounts of bismuth work. Some organic reagents containing sulfur as bismuth analysis reagent is very promising. For this reason, it has been proposed to measure bismuth with dithiopyridine. The literature for the first time put forward a new method for the determination of trace amounts of bismuth in the presence of an activator, making a valuable effort for the determination of trace amounts of bismuth. We examine the basis of the literature