磺胺类混合制剂应用非常普遍,SD、SM 与 ST 三者混合在一起的磺胺类制剂更为常见,但到近来为止,认为色层分析法对于三者混合在一起时的各自含量测定仍是最满意的方法,但并不快速,色层分离后用比色法或容量滴定法测定各自的含量。但很多学者以分光光度法进行了研究,以前报导的方法大都涉及 SD 与 ST 的测定,或三者的总含量测定,这是 The use of sulfonamides is very common, and the combination of SD, SM and ST is more common with sulfonamides, but until recently it was believed that the chromatographic analysis was still the most accurate for each of the three Satisfactory method, but not fast, color separation or volumetric titration method to determine their content. However, many scholars have studied spectrophotometry. Most of the methods reported before involve the determination of SD and ST, or the total content of three, which is