mercuric thiocyanate

Study on Comparison of Measuring Chloride with Mercuric Thiocyanate by Single or Double Standards

硫氰酸汞法测定氯化物单点与两点定标的对比研究

To evaluate the importance of determining chloride with mercuric thiocyanate using double standards .

目的：评价两点定标对硫氰酸汞比色法测定氯化物的重要性。

The optimum reactive condition for precipitating AgCl is discussed . Compared with the conventional mercuric thiocyanate colorimetry , the new method has high accuracy , and the recovery is 99.5 % ~ 101.1 % .

探讨了沉淀AgCl反应的适宜条件，并与硫氰酸汞比色法的分析结果对比，说明该法准确度高，加标回收率为99.5%~101.1%。

Chloride ion reacts with mercuric thiocyanate and iron ( II ) nitrite in acidic media to form a red complex , and the absorbance corresponding to the complex will be proportional to the concentration of chloride .

氯离子与硫氰酸汞和硝酸铁在酸性介质中反应生成红色的络合物，此络合物的吸光度与水中氯离子的含量成正比。