论文部分内容阅读
为了实现无氰分析,近年来人们作了不少努力。在实验室已合成了MTCA,IDTC,β—DTCPA,α—DTCPA等氨荒酸类作为氰化物的代用品。但这些试剂至今尚限于实验室的少量制备,还没有形成工业化生产,也没有商品试剂出售。生化试剂L—2氨基—3—巯基丙酸,在医学上是锑中毒、肝中毒和放射性药物中毒的解毒剂,也是络合滴定的掩蔽剂。本文对其分析上的性能作了初步探讨,证明它在酸性和碱性溶液中均是一个优良的掩蔽剂和解蔽剂。在碱性溶液中,它能掩蔽氰化物所能掩蔽的
In order to realize cyanide-free analysis, a lot of efforts have been made by people in recent years. In the laboratory, MTCA, IDTC, β-DTCPA and α-DTCPA have been synthesized as substitutes for cyanide. However, to date, these reagents have been limited to a small amount of laboratory preparation, have not yet formed industrialized production, there is no sale of commercial reagents. Biochemical reagent L-2 amino-3-mercaptopropionic acid, antimony in medicine is poisoning, liver poisoning and radiopharmaceutical poisoning antidote, but also complexation titration masking agent. In this paper, the preliminary analysis of its analytical performance proved that it is an excellent masking agent and de-blocking agent in both acidic and alkaline solutions. In alkaline solution, it can mask the cyanide can be masked