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1. 四川师范大学化学与材料科学学院,四川 成都,610068
2. 成都中医药大学药学院, 四川 成都 611137
纸质出版日期:2017-5-5,
收稿日期:2016-10-19,
修回日期:2017-3-12,
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黄科, 李玲, 黄国英等. 基于氢化物发生技术的CdSe量子点水相制备新方法研究及其用于银的高灵敏传感分析[J]. 发光学报, 2017,38(5): 574-579
HUANG Ke, LI Ling, HUANG Guo-ying etc. Aqueous Synthesis of CdSe Quantum Dots by Hydride Generation and Its Applications in Sensitive Analysis of Silver[J]. Chinese Journal of Luminescence, 2017,38(5): 574-579
黄科, 李玲, 黄国英等. 基于氢化物发生技术的CdSe量子点水相制备新方法研究及其用于银的高灵敏传感分析[J]. 发光学报, 2017,38(5): 574-579 DOI: 10.3788/fgxb20173805.0574.
HUANG Ke, LI Ling, HUANG Guo-ying etc. Aqueous Synthesis of CdSe Quantum Dots by Hydride Generation and Its Applications in Sensitive Analysis of Silver[J]. Chinese Journal of Luminescence, 2017,38(5): 574-579 DOI: 10.3788/fgxb20173805.0574.
报道了一种新型的利用氢化物发生技术水相合成高质量硒化镉量子点(CdSe QDs)的方法。通过将硼氢化钾与亚硒酸混合产生H
2
Se气体,并将其可调控地引入到含镉溶液中,从而制备出化学性质稳定、荧光性能良好的CdSe量子点。所合成的量子点被成功应用于环境水样及细胞样品中痕量银的分析,分析检出限为0.005 gmL
-1
,相对标准偏差小于2.7%(
n
=7),分析结果令人满意。该方法具有操作简单、稳定性好、灵敏度高、绿色环保等优点。
A new route was developed to synthesize CdSe quantum dots (QDs) in aqueous solution by hydride generation. High quantum yield and stabilized CdSe QDs were prepared by introducing H
2
Se gas which was generated on-line by reducing SeO
3
2-
with KBH
4
into the aqueous medium containing Cd
2+
ions. The prepared CdSe QDs were successfully utilized for analysis of Ag
+
in environmental water samples and cells. The limit of detection is 0.005 gmL
-1
and the relative standard deviation is better than 2.7%(
n
=7). The proposed method retains several unique advantages
including sensitivity
simplicity
stability and environmentally friendly.
CdSe量子点氢化物发生银离子
CdSe QDshydride generationAg+
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