科研之友
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摘要
A bismuth-film electrode (BiFE) ex situ electrochemically deposited onto a copper substrate has been presented for paraquat determination. The bismuth film was electrochemically deposited at an applied potential of 0.18 V vs. Ag/AgCl (3.0 M KCl) for 200 s. The analytical curve was linear in the paraquat concentration range from 6.6 x 10(-7) M to 4.8 x 10(-5) M with a limit of detection of 9.3 x 10(-8) M. The method presented satisfactory results at a confidence level of 95% and the performance was evaluated in water samples.
- 出版日期2010-6
