共 16 条
Matrix-Assisted UV-Photochemical Vapor Generation for AFS Determination of Trace Mercury in Natural Water Samples: A Green Analytical Method
被引:19
|作者:
Xia, Hui
[2
]
Liu, Xing
[2
]
Huang, Ke
[2
]
Gao, Ying
[2
]
Gan, Lu
[2
]
He, Chunlan
[2
]
Hou, Xiandeng
[1
,2
]
机构:
[1] Sichuan Univ, Analyt & Testing Ctr, Chengdu 610064, Sichuan, Peoples R China
[2] Sichuan Univ, Coll Chem, Chengdu 610064, Sichuan, Peoples R China
基金:
中国国家自然科学基金;
关键词:
atomic fluorescence spectrometry;
green analytical method;
mercury;
uv-photochemical vapor generation;
water;
ATOMIC FLUORESCENCE SPECTROMETRY;
DISSOLVED GASEOUS MERCURY;
ABSORPTION-SPECTROMETRY;
SPECIATION ANALYSIS;
FORMIC-ACID;
PRECONCENTRATION;
PHOTOPRODUCTION;
PHOTOREDUCTION;
IRRADIATION;
SEPARATION;
D O I:
10.1080/00387010.2010.510695
中图分类号:
O433 [光谱学];
学科分类号:
0703 ;
070302 ;
摘要:
Direct matrix-assisted UV-photochemical/cold vapor generation for sample introduction was proposed for the determination of trace mercury in natural water by atomic fluorescence spectrometry. The optimal experimental conditions for the determination of mercury including sampling volume, UV irradiation time, carrier flow rate, pH, and the interference from coexisting metal ions were investigated in detail. Under the optimized experimental conditions, the limit of detection for total mercury was 0.03ng mL-1. The accuracy of the proposed method was validated by analyzing two certified reference water samples with satisfactory analytical results. This method is simple, fast, green, highly selective, ultrasensitive, and yet inexpensive.
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页码:550 / 554
页数:5
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