Rapid-sweep polarography of cystine.
نویسنده
چکیده
In their brochure The Principles and Applications of Cathode-Ray Polarography Southern Analytical Ltd. (Camberley, Surrey, U.K.) refer to a paper in which one of their cathode-ray polarographs is used for the determination of amino acids containing thiol and disulphide groups (Coult, 1958). This work apparently takes no account of the fact that the shape of a rapid-sweep polarogram is more dependent on the direction through which the particular potential range is swept than on the oxidation state of the species in bulk solution. Consider a rapid-sweep polarogram of cystine (R-S-S-R) when the 'start potential' of the dropping-mercury electrode is too positive for reaction (1) to occur:
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ورودعنوان ژورنال:
- The Biochemical journal
دوره 121 3 شماره
صفحات -
تاریخ انتشار 1971