期刊
ELECTROANALYSIS
卷 23, 期 5, 页码 1236-1244出版社
WILEY-BLACKWELL
DOI: 10.1002/elan.201100016
关键词
Boron-doped diamond film electrode; Differential pulse voltammetry; Nitrophenols; Drinking water; River water; Solid phase extraction
资金
- Ministry of Education, Youth and Sports of the Czech Republic [LC06035, MSM 0021620857, RP 14/63, ME 10004]
- [SVV 2011-263204]
A differential pulse voltammetric method was developed for the determination of 2-nitrophenol, 4-nitrophenol and 2,4-dinitrophenol at a boron-doped diamond film electrode using electrochemical reduction and of 4-nitrophenol and 2,4-dinitrophenol using electrochemical oxidation. The method was successfully applied for the direct determination of these compounds in drinking and river water in the concentration range from 4 x 10(-7) to 2 x 10(-5) mol L(-1). To improve the limit of quantification, a preconcentration by solid phase extraction from 100 mL and 1000 mL of water samples was used with limit of determination around 2 x 10(-8) and 2 x 10(-7) mol L(-1), respectively.
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