'Zero-crossing' derivative spectrophotometry has been used for determining binary mixtures of dicloxacillin Na and ampicillin Na, which are penicillins with closely overlapping absorption spectra. The procedure is rapid, simple, nondestructive, and does not require solutions of equations. Calibratio
First and second derivative spectrophotometric assay of mixtures of cefuroxime and cephalexin
β Scribed by Basilio Morelli
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 603 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0731-7085
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
A general framework for the first and second complex-step derivative approximation to compute numerical derivatives is presented. For first derivatives the complex-step approach does not suffer roundoff errors as in standard numerical finite-difference approaches. Therefore, since an arbitrarily sma
A method for the analysis of two-component mixtures of cephalothin and cefoxitin using zero-crossing first-derivative spectrophotometry is described. This technique permits the quantification of these drugs with closely overlapping spectral bands without any separation step. Linear calibration graph