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A flow injection chemiluminescence system for the determination of isoniazid |
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| Authors: | Y Huang Z Zhang D Zhang J Lv |
| Institution: | Institute of Analytical Sciences, Southwest Normal University, Beibei, Chongqing 400715, P.R.China, CN Department of Chemistry, Southwest Normal University, Beibei, Chongqing 400715, P.R.China, CN Department of Chemistry, Shaanxi Normal University, Xi’an 710062, P.?R. China, CN |
| Abstract: | A chemiluminescence (CL) flow system is described for the determination of isoniazid based on its enhancement on the chemiluminescence (CL) emission produced upon mixing a hexacyanoferrate(III) solution with an alkaline luminol solution. The system responds linearly to isoniazid concentration in the range 0–1 mg/L with a detection limit (3σ) of 0.03 μg/L, relative standard deviation (RSD) of 1.2% for 0.1 mg/L isoniazid (n = 11). The system has been successfully applied to the determination of isoniazid in pharmaceutical preparations. |
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