摘要
基于碘(Ⅰ )在高碘酸钾氧化亮绿SF增色反应中的催化活性,建立了高灵敏度、高选择性的催化动力学光度法测定食盐中碘含量的新方法,测定线性范围为0.5~12.5μg/25ml,方法检出限为2.9×10-1μg/ml。该方法重现性好、准确度高、操作简便、快捷,测定结果令人满意。
This paper was based on the catalytic activity of I- in color increasing reaction in which KIO4 oxidiaed in bright green (sf),so as to establishe a new ,high sensitive and high selective method of assaying I2 content in salt by catalytic dynamics photometric method.Linear assaying range was 0.5~12.5μg/25ml and measuring limit was 2.9×10-1μg/ml.Repetition of this method was fine accurate and operation simpler and process prompt.The satisfactory effects were obtained.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2002年第4期114-117,共4页
Food Science