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钨冶中的砷常用蒸馏分离-砷钼蓝比色法测定,操作较繁,本文用丘氏定砷器使砷呈 AsH_3分离后,用砷铋钼蓝比色法测定,结果满意。1 实验部分1.1 仪器和试剂721型分光光度计;丘氏定砷器:其结构见文献,使用前在连接管的球泡内安放乙
Arsenic tungsten commonly used in the distillation separation - arsenic molybdenum blue colorimetric assay, the operation more complex, this article with arsenic were Qiu given arsenic AsH_3 separation, with arsenic bismuth molybdenum blue colorimetric determination, the results are satisfactory. 1 Experimental 1.1 Instruments and reagents 721 spectrophotometer; Qiu Shi Ding arsenic: its structure, see the literature, before use in the tube connected to the bulb placed B