A new resonance Rayleigh scattering method for trace Pb, coupling the hydride generation reaction with nanogold formation

作者：Liang, Aihui; Wei, Yanyan; Wen, Guiqing; Yin, Wenqing; Jiang, Zhiliang^*

来源：RSC Advances, 2013, 3(31): 12585-12588.

DOI：10.1039/c3ra42030b

• ATOMIC-ABSORPTION-SPECTROMETRY
• LEAD IONS
• ELECTROCHEMICAL DETECTION
• GOLD NANOPARTICLES
• PLUMBANE
• APTAMER
• SAMPLES
• PROBE
• AG+

Pb2+ was oxidized to Pb4+ and was reduced to PbH4 gas by NaBH4, and the gas was reacted with Au3+ to form nanogold that exhibited a resonance Rayleigh scattering effect at 286 nm. Based on this, 0.2 x 10(-6)-33.6 x 10(-6) mol L-1 Pb can be detected, with a detection limit of 7.0 x 10(-8) mol L-1.

• 出版日期2013
• 单位广西师范大学