Determination of trace Sn in geosamples by flow injection on-line co-precipitation hydride generation atomic fluorescence spectrometry

作者：Tan CH^*; Tang ZY; Cao ZN; Yin SH

来源：Spectroscopy and Spectral Analysis, 2001, 21(5): 661-663.

• flow injection analytical
• on-line co-precipitation
• hydride generation fluorescence spectrometry
• Sn

It is reported that a FI on-line co-precipitation technique for the pre-concentration of trace amount of Sn with the precipitate of Mg(OH)(2), as carrier is hyphenated with AFS determination. The co-precipitation is carried out in NaOH medium and the precipitate is collected in a precipitation collector. The precipitate is then dissolved by HCl and reacted with NaBH4 the hydride is transferred directly into the atomizer. The relative standard deviation is 5.15% for 10 determinations of 30 ng(.)mL(-1) Sn and the detection limit of 0.21 ng(.)g(-1) is obtained. The developed method has been applied to the determination of trace Sn in geosamples with satisfactory results.

• 出版日期2001-10
• 单位华南理工大学; 中国地质大学（北京）