摘要
对离子色谱法电导检测食品中亚硝酸盐的方法进行了改进,优化了蔬菜、肉制品以及牛奶中亚硝酸盐检测时的前处理方法,并做了详细的检测分析。其中,检出限〉0.01μg.g^-1,线性范围0－5 mg.L^-1,相关系数〉0.999,加标回收率105%。实验证明：经离子色谱法检测,改良后的前处理方法对亚硝酸盐检测时的精密度高、检出限低、快速稳定可靠,为食物中亚硝酸检测提供了一种快速简捷的方法。
Nitrite ion detection by ion chromatography（IC）,one of effective examination and analysis methods of nitrous acid salt in foods was mainly researched in this paper.The pretreatment of foods,including vegetables,ham and milk were also optimized and studied.As the results showed,the limit of nitrous was 0.01 μg·g^-1,correlation coefficient was more than 0.999,linear range was 0—5 mg·L^-1,and recovery rate was 105 %.Experiments proved that the IC with optimized pretreatment had the advantage of simple and fast,high sensitivity,which provided a good choice for nitrite ion detection in food.
出处
《青岛科技大学学报（自然科学版）》
CAS
2010年第3期259-261,共3页
Journal of Qingdao University of Science and Technology:Natural Science Edition
