Results 161 to 170 of about 13,884 (201)
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ON THE SPECIFICITY OF DYE TITRATION FOR ASCORBIC ACID
Canadian Journal of Research, 1946The 2,6-dichlorophenolindophenol method of assay of vitamin C has been critically examined with respect to a number of fresh, boiled, and otherwise treated plant materials. Comparative values are given for ascorbic acid as determined by the usual method, for non-vitamin C reductants, and for dehydroascorbic acid.In the fresh uncooked materials examined,
J, TUBA, G, HUNTER, H R, STEELE
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Titratable acidity: A Pitts concept revisited
Scandinavian Journal of Clinical and Laboratory Investigation, 2014Titratable Acidity (TA) in urine can be measured directly or calculated from actual and reference pH, by using the pKa₂ 6,8 for phosphate. In urine, H₂PO₄(-) represents the excretion of filtered H₂PO₄(-), filtrated HPO₄(2-) being completely reabsorbed by the proximal tubule (the Van Slyke approach).
Roberto, Mioni, Giuseppe, Mioni
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Non-aqueous titration of hydroxamic acids
Talanta, 1966Benzohydroxamic acid is titrated with 0.1M tetrabutyl-anunonium hydroxide in nine non-aqueous solvents with three different indicating electrodes. The best results are obtained using dimethylformamide as solvent and platinum-platinum electrodes. Four monoprotic and three diprotic hydroxamie acids and iron(III) benzohydroxamate have been successfully ...
Stamey, T. W., Christian, Robert V.
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Logarithmic diagrams in acid—base titrations and estimation of titration errors
Talanta, 1980The use of a logarithmic diagram for the estimation of the pH-value at the equivalence point and the titration error when a solution containing one or two acids is titrated with standard alkali is described.
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The Role of Titratable Acidity in Acid Aerosol-induced Bronchoconstriction
American Review of Respiratory Disease, 1987Abstract We evaluated the importance of pH, titratable acidity, and specific chemical composition in acid aerosol-induced bronchoconstriction in 8 asthmatic subjects. We administered aerosols of HCl and H2SO4 at pH 2.0 in an unbuffered state and buffered with glycine.
J M, Fine +3 more
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TITRATABLE ACID OR BASE OF BODY FLUIDS
Annals of the New York Academy of Sciences, 1966S.P.L. Sgrensen not only introduced the p H concept, but in his classical paper from 1909 “Enzymstudien 11” he also described in great detail the colorimetric as well as the potentiometric methods for p H measurement, and he pointed out that two kinds of acidity must be distinguished: Actual acidity and titratable acidity.
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Titration of phosphonic acid derivatives in mixtures
Talanta, 1980An analytical procedure is described for the determination of the weak acids phosphonomethyliminodiacetic acid and phosphonomethyliminoacetic acid in their mixtures, and the dissociation constants of phosphonomethyliminoacetic acid are reported.
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On the anomalous titration of deoxyribonucleic acid
Biochimica et Biophysica Acta, 1956L F, CAVALIERI, B H, ROSENBERG
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Dielectrometric titrations: quantitative acid-base titrations
Analytical Chemistry, 1969Robert. Megargle +2 more
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Linear Titration Curves of Acids and Bases
Science, 1959The Henderson-Hasselbalch equation, by a simple transformation, becomes p H - pK = pA - pB , where pA and pB are the negative logarithms of acid and base concentrations.
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