用NaNTu消除稀硫酸和硫化钠鉴定铅时Ag^+和Hg_2^(2+)的干扰

Using NaNTu to Eliminate the Interference of Ag^+ and Hg_2^(2+) in the Identifying of Lead by Dilyte Sulfuric Acid and Sodium Sulfide

本文提出了稀硫酸和硫化钠试法鉴定铅时,用N—烯丙基—N′—(对苯磺酸钠)硫脲消除银和亚汞的干扰.与传统的稀盐酸法相比,不会造成铅的损失,操作更方便.

In this paper, the N-allyl-N'-(sodium p-phenyl-sulfonate ) thiourea is used for eliminating the interference of silver and mercurous in the identification of lead using dilute sulfuric acid and sodium sulfide. Comparing with the traditional method, lead is not losed and the opera-tion is convenient.