提出了用螯合滴定法测定矿石试样中的锡，用以取代铝片还原碘量法。
Methods Tannin was extracted by the ultrasonic technology and content of tannin was determined by the method of complex titration.
提出测定含锡合金和矿样中高含量锡的一种简易、选择性螯合滴定法。
A simple, selective chelatometric titration method to determine the high content of tin in tin bearing alloy and ore sample is proposed.
本文提出以盐酸氨基脲作释放剂，选择性螯合滴定法测定铅铊合金、铊化物和硫酸铊中的铊含量。
The thallium content in Al Tl alloys, thallides and thallium sulfate are selectively determined by chelatometry with aminourea hydrochloride used as the reasling agent.
本文提出以盐酸氨基脲作释放剂，选择性螯合滴定法测定铅铊合金、铊化物和硫酸铊中的铊含量。
The thallium content in Al Tl alloys, thallides and thallium sulfate are selectively determined by chelatometry with aminourea hydrochloride used as the reasling agent.
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