粗铅化学分析方法 5-Br-PADAP光度法测定锑量粗铅化学分析方法 5-Br-PADAP光度法测定锑量Methods for chemical analysis of crude lead The 5-Br-PADAP photometric method for the determination of antimony content
粗铅化学分析方法 砷量的测定 砷锑钼蓝分光光度法和萃取－碘滴定法
Methods for chemical analysis of crude lead The molybdoantimonyarsenate blue photometric method for the determination of arsenic content
2007-04-13
YS/T 248.2-2007
粗铅化学分析方法 锡量的测定 苯基荧光酮分光光度法和碘酸钾滴定法
Methods for chemical analysis of crude lead—Determination of tin content—Phenylfuorone photometric method and potassium iodate titrimetric method
2007-04-13
GB/T 4698.22-2017
海绵钛、钛及钛合金化学分析方法 第22部分：铌量的测定 5-Br-PADAP分光光度法和电感耦合等离子体原子发射光谱法
Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 22：Determination of niobium content—5-Br-PADAP spectrophotometry and inductively coupled plasma atomic emission spectrometry