A simple, precise, and accurate spectrophotometric determination of antazoline salts was developed by improving the ceric sulfate procedure. Replacement of water with acetic acid for the preparation of all assay solutions permitted reproducible measurements of the chromogen that absorbed at 505 nm.
Improved differential spectrophotometric determination of rifamycins
โ Scribed by Carmine R. Pasqualucci; Aristide Vigevani; Pietro Radaelli; Gian G. Gallo
- Publisher
- John Wiley and Sons
- Year
- 1970
- Tongue
- English
- Weight
- 318 KB
- Volume
- 59
- Category
- Article
- ISSN
- 0022-3549
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๐ SIMILAR VOLUMES
The addltlon of an excess of NH: has been found totally to suppress the competmg chlormatlon reactlons that ha{e caused problems in all prewously pubhshed applications of the chloramme-T-Phenol Red method for trace bromide analysis As a result of this, the dynamic range of the method has been extend
Mdk samples were analysed spcctrophotometncally for their lactose content usmg flow-lwectlon analysis The methodology IS based on the carmme colour that develops (Amu = 540 nm) when lactose reacts with alkahne methylamme (pH 12 7) Lactose concentrations as low as 0 6 mg ml-' can be readily detected