原子荧光光谱法测定天然饮用矿泉水中的有机锗

Determination of organic germanium in natural drinking mineral water by atomic fluorescence spectrometry

目的:建立准确、灵敏的天然饮用矿泉水中有机锗的原子荧光光谱测定方法。方法:用氢化物原子荧光光谱法检测经阴离子交换柱分离得到的有机锗。结果:在优化好的实验条件下测定天然饮用矿泉水中有机锗的含量,方法精密度为1.4%～5.1%,方法检出限为0.58μg/L(以Ge计),回收率为91.5%～105.8%。结论:有机锗经阴离子交换柱分离后得到有效富集,用氢化物原子荧光光谱法测定,结果准确可靠,适于推广。

Objective：To establish an accurate and sensitive method for determination of organic germanium in natural drinking mineral water by atomic fluorescence spectrometry.Methods： The organic germanium separated by an anion exchange column was determined by hydride generation atomic fluorescence spectrometry.Results： In the optimized experimental condition,the detection limit was 0.58 μg/L,the RSDs were between 1.4% to 5.1%,the recoveries ranged from 91.5% to 105.8%.Conclusion： Organic germanium was firstly enriched effectively by an anion exchange column,and then was determined by the hydride generation atomic fluorescence spectrometry.The developed method is accurate and reliable,and suitable for promotion.