A rapid and direct differential pulse polarographic method for the determination of zine in insulin preparations is described. Optimum conditions were studied using 0.2 M acetate buffer (pH 4.1) as the supporting electrolyte. Agreement between the results by direct analysis and those by the procedur
β¦ LIBER β¦
Determination of zinc in insulin preparations
β Scribed by Bennie Zak; Jerry S. Cohen
- Publisher
- John Wiley and Sons
- Year
- 1963
- Tongue
- English
- Weight
- 280 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0022-3549
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One sample of phenobarbital was eluted quantitatively from the adsorbent with diethyl ether containing 2 z ethanol as a preservative. Prior experimental data showed that diphenylhydantoin was not eluted from the adsorbent with diethyl ether. Preparations containing sodium salts of phenobarbital and/