Differential pulse polarography of some degradation products of tetracycline
โ Scribed by T. Jochsberger; A. J. Cutie; Hou-Yeh Wang; N. Y. Mary
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 240 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0022-3549
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A differential pulse polarographic method is described for the determination of the antibiotic tetracycline HCI in the presence of its degradation product anhydrotetracycline. The method utilizes the large difference in their differential pulse polarograms at a peak potential of -1.39 V in 0.1 M pho
The expression for the current of differential pulse polarography (DPP), in the case of reversible systems, has been established using the diffusion layer model without resolving the diffusion equations. Criteria for the reversibility of the electrochemical reaction, inherent to DPP, are also discus
A differential pulse polarographic method is presented for the determination of total hypericin in phytotherapeutic preparations (drops, tablets and capsules). The polarographic behaviours of hypericin and of pseudohypericin were examined in various buffer systems over the pH range 3.5-10.0. In Brit