论文部分内容阅读
氯化乙基汞、溴化苯汞、乙酸苯汞都是目前广泛采用的有机汞杀菌剂。从有机汞化合物的組成来說是属于R·Hg·X类型,R代表烃鏈或芳环,X代表負性基团如Cl,Br,CN,I或Ac筹。分析方法通常以汞含量为基础,包括有硫氰酸盐滴定、硫化汞法、燃烧法、有机試剂沉淀法、极譜法和EDTA絡量法。这些方法都必須經历两个主要的步驟,即首先把有机原子团部分分解,使成为可溶性的汞盐,然后才按上述各方法測定其汞含量。
Ethylmercury chloride, phenylmercuric bromide, phenylmercuric acetate are currently widely used organic mercury fungicides. Belongs to the R · Hg · X type from the composition of the organic mercury compounds, R represents a hydrocarbon chain or an aromatic ring, and X represents a negative group such as Cl, Br, CN, I or Ac. Analytical methods are usually based on mercury content, including thiocyanate titration, mercuric sulfide, combustion, organic reagent precipitation, polarography and EDTA volumetric methods. Each of these processes must go through two major steps, which are to first partially decompose the organic radicals into soluble mercury salts and measure the mercury content by each of the above methods.