Iodine Amperometric Titration by the Vacuum Tube Voltmeter in Starch
نویسندگان
چکیده
منابع مشابه
A Vacuum Tube Micro-voltmeter for the Measurement of Bio-electric Phenomena *
1. Do living organisms possess steady state, or direct current, potential differences? 2. Can these potential differences be measured in such a way as to be free from the usual ambiguities of electrical measurement, i.e., can the determination of potential differences be made independently of resistance changes and current flow? 3. Do these potential differences reflect an unorganized chaos or ...
متن کاملThe determination of blood glutathione by amperometric titration.
In 1946 Kolthoff and Harris devised a method of titrating mercaptans in aqueous alcoholic solution with silver nitrate. They used a rotating platinum electrode with suitable current measuring equipment to locate the titration end-point. Benesch and Benesch (1948) applied this technique to the determination of sulphydryl groups in serum protein, and Weissman, Schoenbach, and Armistead (1950) use...
متن کاملAmperometric Titration Largely Overestimates Chloride Concentrations in Chloroplast Extracts
D eterm ination of chloride con ten ts in aqueously isolated chloroplasts from spinach by am perom etric titration indicated chloride concentrations of 60 to 100 m m ol l_l (based on a chloro plast volume of 25 (a.1 m g^1 chlorophyll). H ow ever, when analyzed by anion chrom atography, chloride contents in chloroplasts w ere much lower (1 — 8 mmol I 1). In leaf extracts chloride concentra ti...
متن کاملStudies on the Starch-iodine Reaction
The usefulness of the radiomicrometer in the study of reactions involving a marked color change was indicated in a previous paper (1). It was there shown that the starch-iodine reaction could be investigated in this way. The present paper reports further observations on the reaction, which bear upon the problem of the chemical specificity of some starches and upon the nature of starch-iodide. T...
متن کاملThe Demon in a Vacuum Tube
In the present paper, several issues concerning the second law of thermodynamics, Maxwell’s demon and Landauer’s principle are dealt with. I argue that if the demon and the system on which it operates without dissipation of external energy are made of atoms and molecules (gas, liquid or solid) in thermal equilibrium (whose behaviour is described by a canonical distribution), then the unavoidabl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the agricultural chemical society of Japan
سال: 1964
ISSN: 0002-1407,1883-6844
DOI: 10.1271/nogeikagaku1924.38.509