SERS detection of trace nitrite ion in aqueous solution based on the nitrosation reaction of rhodamine 6G molecular probe
SERS detection of trace nitrite ion in aqueous solution based on the nitrosation reaction of rhodamine 6G molecular probe
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基于罗丹明6G分子探针亚硝化反应的SERS检测水溶液中痕量亚硝酸根离子
DOI：
10.1016/j.snb.2014.05.008
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发表时间：
2014-10-01
影响因子：
8.4
通讯作者：
Jiang, Zhiliang
中科院分区：
文献类型：
--
作者：
Luo, Yanghe;Wen, Guiqing;Jiang, Zhiliang
稳定的还原氧化石墨烯/三角形板型纳米银聚合体/罗丹明6G （rGO/TAgA/Rh6G）纳米传感器在1505 cm（-1）处表现出较强的表面增强拉曼散射（SERS）峰，用于监测Rh6G与NO2-亚硝化反应中Rh6G浓度的变化，NO2-的增加导致SERS强度降低。在0.7 ~ 72 nmol/L范围内，SERS强度与亚硝酸盐浓度呈线性关系，检测限为0.2 nmol/L。采用该Rh6G SERS纳米传感器对水样中的亚硝酸盐进行分析，回收率为94.8% ~ 108%，相对标准偏差为4.4% ~ 7.5%。(C) 2014 Elsevier B.V.版权所有
The stable reduced graphene oxide/triangular plate-type nanosilver aggregation/rhodamine 6G (rGO/TAgA/Rh6G) nanosensor exhibited a strong surface-enhanced Raman scattering (SERS) peak at 1505 cm(-1) that was used to monitor the Rh6G concentration changes in the nitrosation reaction between Rh6G and NO2-, in which NO2- increase results in the SERS intensity decrease due to the decreasing Rh6G. The decreased SERS intensity was linear to nitrite concentration in the range of 0.7-72 nmol/L, with a detection limit of 0.2 nmol/L. Nitrite in water samples was analyzed by this Rh6G SERS nanosensor, with recovery of 94.8%-108% and relative standard deviation of 4.4%-7.5%. (C) 2014 Elsevier B.V. All rights reserved.