van Nispen JW, Janssen PS, Goverde BC, Scherders JC, van Dinther F, Hannink JA. Analytical isotachophoresis in peptide chemistry. I. Analysis of anions in peptides.
INTERNATIONAL JOURNAL OF PEPTIDE AND PROTEIN RESEARCH 1981;
17:256-62. [PMID:
7228500 DOI:
10.1111/j.1399-3011.1981.tb01990.x]
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Abstract
The application of analytical capillary, carrier-free isotachophoresis as a rapid method (approx. 10-15 min per run) for the simultaneous determination of anions present in peptides (as counterion, contaminating ion or peptide anion) is described. Only small amounts of material, approx. 0.1-1.0 mg, are necessary to obtain information on the nature of the anion (qualitative) and of the amount of anion present (quantitative aspect).
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