A method is proposed for the flow-injection determination of ascorbic acid (0.1-40 pg ml-'). Iodine is generated in the flow system as triiodide ion or the triiodide/starch complex giving a steady spectrophotometric signal at 350 or 580 nm, respectively; inverse peaks caused by ascorbic acid samples
Flow injection spectrophotometric determination of ascorbic acid in soft drinks and beer
✍ Scribed by E. Luque-Pérez; A. Ríos; M. Valcárcel
- Book ID
- 105897917
- Publisher
- Springer
- Year
- 2000
- Tongue
- English
- Weight
- 85 KB
- Volume
- 366
- Category
- Article
- ISSN
- 1618-2650
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The application of square-wave voltammetly for detection m the flow-mJection determmatlon of ascorlxc acid m soft drinks and fruit Jmces was mvestlgated The pH of the solution was buffered at 2 87 to stabdlze the ascorbic acid pnor to analysis Parameters such as scan rate, square-wave amphtude, step
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