摘要
用湿法消化法处理样品,建立湿法消化法—火焰原子吸收光谱法快速测定蝉蜕中钙、铁、锌、锰、铜、镉6种微量元素的分析方法。实验结果表明,在待测液中加入适量盐酸可提高被测元素的吸光度。详细研究了HClO_4和HNO_3的两种不同体积比对测定结果的影响,前者回收率为96.2%～123.4%,后者回收率为97.3%～108.1%。相对标准偏差小于1.4%,标准偏差小于2.6%。
Flame atomic absorption spectrometry（FAAS） has been employed for the rapid determination of Ca,Fe,Zn,Mn, Cu,Cd in Periostracum Cicadae with digestion processing sample techniques. The result shows that the suitable amount of Hydrochloric acid used in suspension solution can increase the absorbance of tested el- ement greatly. Meanwhile, the effects of mixed acid, with two different ratios of HNO3 to HClO4 in mixed acid are investigated in detail. It shows that the recovery rate in the former is 96.2% - 123.4% and the recovery in the latter is 97.3% - 108.1%. The relative standard deviation of the six elements is less than 1.4% and the standard deviation is less than 2.6%.
出处
《绵阳师范学院学报》
2008年第11期55-58,共4页
Journal of Mianyang Teachers＇ College
