液态奶样品沉淀蛋白、去除脂肪后,用离子色谱法分析,电导检测器检测。以丙酮碳酸钠、碳酸氢钠、丙酮为流动相测定牛奶中硫氰酸根,该方法使用万通公司离子色谱仪883和iColumns智能柱进行检测。该检测方法结果准确,重复性良好,检测限低,相关系数r=0.999984,回收率90%～110%。结论:方法灵敏,结果准确,适用于牛奶中硫氰酸根的快速测定。 Liquid milk samples precipitated protein, after removing fat, analyzed by ion chromatography, conductivity detector detection. The thiocyanate in milk was determined with acetone sodium carbonate, sodium bicarbonate and acetone as the mobile phase. The method was performed on a Wantong IC 883 and iColumns smart column. The detection method is accurate, reproducible and the detection limit is low. The correlation coefficient is 0.999984 and the recovery rate is 90% -110%. Conclusion: The method is sensitive and accurate. It is suitable for the rapid determination of thiocyanate in milk.