## Abstract A simple chemiluminometric method using flow injection has been developed for the determination of laevodopa, based on its sensitizing effect on the weak chemiluminescence (CL) reaction between Na~2~SO~3~ and acidic KMnO~4~. Under optimum experimental conditions, the CL intensity was li
Flow-injection method for the determination of iodide/iodine using Ru(bpy)33+–NADH chemiluminescence detection
✍ Scribed by Amir Waseem; Mohammad Yaqoob; Abdul Nabi
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 151 KB
- Volume
- 23
- Category
- Article
- ISSN
- 1522-7235
- DOI
- 10.1002/bio.1037
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✦ Synopsis
Abstract
A two‐channel flow‐injection (FI) method is reported for the determination of iodide and iodine by its enhancement effect on the Ru(bpy)~3~^3+^–NADH chemiluminescence (CL) system. The limit of detection (3 s of blank) was 1.0 × 10^–9^ mol/L iodide/iodine, with a sample throughput of 60/h. The calibration graphs over the range 1.0–50 × 10^–8^ mol/L gave correlation coefficients of 0.9994 and 0.999 (n = 5) with relative standard deviations (RSD; n = 4) of 1.0–2.5%, respectively. The effects of interfering cations, anions and some organic compounds were also studied. The method was applied to iodized salts and pharmaceutical samples and the results obtained were in good agreement with the value quoted. The CL method developed was compared with spectrophotometric method. Copyright © 2008 John Wiley & Sons, Ltd.
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