原料乳中硫氰酸钠的检测研究

A Method to detect Sodium Thiocyanate in milk

建立了原料乳中硫氰酸钠的检测方法。硫氰酸钠经三氯乙酸提取,与三价铁反应生成红色络合物,用分光光度计测定其吸光度,根据吸光度曲线确定硫氰酸钠含量。方法处理简单,易操作,回收率高,试验成本低,分析周期短,因此该方法可作为原料奶中硫氰酸钠的快速检测方法。

A method is developed to detect sodium thiocyanate,sodium thiocyanate is extracted by trichloroacetic acid,and reacts with ferric iron to produce a red complex,the absorbance is determined by spectrophotometer,the sodium thiocyanate is determined according to the absorbance curve.Approach is simple and easy to operate,high recovery rate and low cost testing,analysis period is short,so it can be used as a rapid detection method of sodium thiocyanate in milk.