摘要
目的：测定从江柑中微量元素铁的含量。方法：通过正交试验优化组合,得到最佳仪器工作条件,用火焰原子吸收光谱法测定微量元素铁。结果：线性范围为0.000-4.000μg/ml,标准曲线相关系数r为0.999 9,特征浓度为0.038μg/ml,检出限为0.022μg/ml,标准偏差SD为0.11%,相对标准偏差RSD为0.38%,回收率为99.50%。结论：方法简便、灵敏度高,结果准确。
Objective：To determinate the contents of the trace iron in Congjiang Citrus.Method：The instrumental parameters were optimized by orthogonal experimental design,the trace iron was determinated by flame atomic absorption spectrometry（FAAS）.Result：The linearity range was 0.000～4.000 μg/ml,the calibration curve is linear with r=0.999 9,the characteristic concentration was 0.038 μg/ml and the detection limit was 0.022 μg/ml.The average rate of recovery was 99.50% while the standard deviation（SD）and the relative standard deviation（RSD） were 0.11% and 0.38%, respectively.Conclution： The method was simpl, accurate and with a high sensitivity.
出处
《安徽农业科学》
CAS
北大核心
2007年第21期6348-6348,6354,共2页
Journal of Anhui Agricultural Sciences
关键词
火焰原子吸收光谱法
从江柑
正交试验
铁
Flame atomic absorption spectrometry
Congjiang Citrus
orthogonal experiment
iron
