化学原子化-原子吸收光谱法测定金银花中镉含量的方法研究
Determination of cadmiumcontent in honeysuckle by chemical atomizeratomic absorption spectrophotometry
分类号：
出版年·卷·期（页码）：2013,33 (2):0-0
DOI:
10.16155/j.0254-1793.2017.01.01
-----摘要：-------------------------------------------------------------------------------------------
目的: 采用化学原子化-原子吸收光谱法,建立金银花中重金属镉的测定方法。 方法: 采用PE-AA400原子吸收分光光度计,MCA-201微型化学原子化器,波长228.8 nm,狭缝2.7 mm/1.35 mm,灯电流4 mA,氩气流量为1.2 L·min-1。 结果: 镉浓度在0.1~8.0 μg·L-1范围内,具有良好的线性关系,校准方程为A=0.1356C+0.0117(r=0.9998);方法回收率(n=9)为95.5%。 结论: 化学原子化-原子吸收光谱法测定金银花中痕量镉,灵敏度高,无背景影响,操作简单快速,成本低廉。
-----英文摘要：---------------------------------------------------------------------------------------
Objective: To establish a chemical atomizeratomic absorption spectrophotometry(AAS)method for determination of cadmium content in honeysuckle. Methods: The contents of cadmium were measured by PE-AA400 atomic absorption spectrophotometer and Mini-chemical Atomizer MCA-201 at the wavelength of 228.8 nm.Entrance slit was 2.7 mm/1.35 mm,lamp current was 4 mA,and the flow of argon was 1.2 L·min-1. Results: A good linear relationship was observed when he cadmium concentration ranged in 0.1~8.0 μg·mL-1,with the calibrator equation A=0.1356C+0.0117(r=0.9998);The recovery(n=9)was 95.5%. Conclusion: The established method has a high sensitivity with no influential background,it is also easy-to-operate and with low cost.
-----参考文献：---------------------------------------------------------------------------------------
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