摘要
发射光谱法同时测定化探样品中的银锡,以焦硫酸钾、氟化钠、氧化铝、石墨粉为缓冲剂,锗为内标,其检出限为Ag0.02μg/g,Sn1.0μg/g。通过多次实验,对实验条件进行选择和优化。采用国家一级标准物质的样品验证,测定结果与标准值相符。
Emission spectrometry method for the determination of samples of silver and tin .TakingK2S2O7,NaF,Al2O3 and C as a buffer, taking Ge as the internal standard. The detection limit for silver is 0.02μg/g, and the detection limit for tin is 1.0μg/g .Through many experiments, experiment conditions were selected and improved. The method has been applied to the determination of these elements in National Standard Reference Materials and the results are in agreements with certified values.
出处
《科教文汇》
2012年第22期99-100,共2页
Journal of Science and Education
关键词
发射光谱法
缓冲剂
银锡
emission spectrometry
buffer
silver and tin
