摘要
干法消化样品，用等离子发射光谱法直接测定鸡蛋中钙、镁、铁、锰、锌、铜、磷、碘8种营养元素。研究了干法消化时，灰化温度、时间对测定结果的影响。在优化的实验条件下8种元素的回收率为98．5％～103．9％，相对标准偏差为2．4％～4．6％，该法与原子吸收法和分光光度法比较，简便、快速、灵敏、准确度高，结果令人满意。
A method for the determination of eight elements (Ca, Mg, Fe, Mn, Zn, Cu, P and I) in eggs has been developed byUsing ICP - AES. The sample was decomposed with dry digestion in muffle furnace. The influences of digestion time, ashing tem-perature and ashing time on determining results were investigated. Under the optimum conditions, the recoveries of eight elements were95. 8% ～ 103. 9% and the RSD were 2. 4% ～ 4. 6%. The method is simple, rapid, higher sensitivity and accuracy comparing withatomic absorption spectrometry and spectrophotometry. The results were obtained.
出处
《中国家禽》
北大核心
1999年第11期13-14,共2页
China Poultry
