A nanogold resonance Rayleigh scattering method for determination of trace As based on the hydride nanoreaction

被引：3
|
作者：
Jiang, Caina [1 ]
Chen, Chunqiang [1 ]
Lu, Zujun [1 ]
Liu, Qingye [1 ]
Tang, Meiling [1 ]
Liang, Aihui [1 ]
Jiang, Zhiliang [2 ]
机构：
[1] Minist Educ, Key Lab Ecol Rare & Endangered Species & Environm, Guilin, Peoples R China
[2] Guangxi Normal Univ, Guangxi Key Lab Environm Pollut Control Theory &, Guilin 541004, Peoples R China
来源：
LUMINESCENCE | 2015年 / 30卷 / 06期
基金：
中国国家自然科学基金;
关键词：
As(III); hydride generation; nanogold reaction; resonance Rayleigh scattering; ARSENIC DETERMINATION; GOLD NANOPARTICLES; SPECTRAL METHOD; GENERATION; ANTIMONY; SPECIATION; APTAMERS; PROBE;
D O I：
10.1002/bio.2831
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In H2SO4 solution, As(III) was reduced to arsine (AsH3) by NaBH4, and was absorbed in HAuCl4 solution to form nanogold particles (NGs) that exhibited a resonance Rayleigh scattering (RRS) effect at 370 nm. Under the selected conditions, when the As(III) concentration increased the RRS peak also increased due to the formation of more NGs. There was a linear correlation between RRS intensity and As(III) concentration in the range 6-1000 ng/mL, with a detection limit of 3 ng/mL. This new hydride generation-nanogold reaction RRS (HG-NG RRS) method was applied to determine trace amounts of As in milk samples, with satisfactory results. Copyright (C) 2015 John Wiley & Sons, Ltd.
引用
收藏
页码：847 / 852
页数：6
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