碘化铋钾,又名碘化铋合四碘化钾、七碘合铋酸(4-)钾,红色结晶或粉末。遇水分解,能溶于碘化钾溶液。
有生命的物质碱沉淀试药: 1. 碘化铋钾 ( Dragendorff )试药:取次硝镪水铋3g溶于30%硝镪水(比重1.18)17ml中,在拌以及下逐步加碘化钾浓水溶液(27克碘化钾溶于20ml水),静置一晚上...
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经磷钼酸和碘化铋钾薄层显色表明抗生素粗品中有含氮化合物。
TLC spray reagents of phosphorus molybdenum acid and bismuth potassium iodide indicated that it maybe contained the composition of alkaloids.
方法:采用了薄层扫描法,以苯-丙酮-醋酸乙酯-浓氨试液(2∶3∶4∶0.2)为展开剂,稀碘化铋钾试液为显色剂;
Method:Thin layer scan used benzene-acetone-ethel acetate-strong ammonia solution(2:3:4:0.2) as a dose, diluted iodized bismuth potassium solution Hin color agent for;
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