Chemiluminometric determination of the pesticide 3-indolyl acetic acid by a flow injection analysis assembly |
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| Authors: | A.I. Pimentel Neves |
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| Affiliation: | Department of Analytical Chemistry, University of Valencia, Valencia, Spain |
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| Abstract: | A new method is proposed for the chemiluminescent determination of the pesticide 3-indolyl acetic acid by means of an flow injection analysis system. The chemiluminescence emission is obtained by oxidation of the analyte with Ce (IV) in nitric acid and presence of β-cyclodextrine.The continuous-flow method allows the determination of 159 samples h−1 of 3-indolyl acetic acid in an interval of concentrations over the range 0.5-15.0 mg l−1. The limit of detection was 0.1 μg l−1 and the R.S.D. (n, 17) at 2.0 mg l−1 of the pesticide level was 2.7%. The method was applied to water samples. |
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| Keywords: | Pesticides Herbicides Chemiluminescence F.I. Ce(IV) |
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