Electron Equilibria in Biological Systems: IV. An Adaptation of the Glass Electrode to the Continuous Measurement of Hydrogen Ion Concentration of the Circulating Blood

1930 ◽  
Vol 45 (38) ◽  
pp. 2223 ◽  
Author(s):  
Carl Voegtlin ◽  
Floyd DeEds ◽  
H. Kahler
Keyword(s):  
Continuous Measurement ◽  
Biological Systems ◽  
Glass Electrode ◽  
Hydrogen Ion ◽  
Ion Concentration ◽  
Hydrogen Ion Concentration

scholarly journals PHYSICAL PROPERTIES OF THE ALLANTOIC AND AMNIOTIC FLUIDS OF THE CHICK

1943 ◽  
Vol 26 (6) ◽  
pp. 503-512 ◽  
Author(s):  
Paul Andrew Walker
Keyword(s):  
Chemical Composition ◽  
Physical Properties ◽  
Glass Electrode ◽  
Hydrogen Ion ◽  
Ion Concentration ◽  
Hydrogen Ion Concentration ◽  
Two Fluids ◽  
Electrode Technique

1. The hydrogen ion concentration of the allantoic and amniotic fluids of the developing chick has been determined over the period of incubation between the 7th and 19th days using the glass electrode technique. 2. Changes in this property have been related to changes in the chemical composition of these two fluids. 3. The results of this investigation have been compared with those obtained by other workers. Excellent confirmation has been afforded the work of Yamada, whereas the work of Aggazzotti, which has long been accepted, is shown to be in error.

scholarly journals Lactic acid in mammalian cardiac muscle.— Part III. changes in hydrogen-ion concentration. (Preliminary note.)

1925 ◽  
Vol 99 (694) ◽  
pp. 26-27 ◽  
Keyword(s):  
Skeletal Muscle ◽  
Lactic Acid ◽  
Glass Electrode ◽  
Hydrogen Ion ◽  
Ion Concentration ◽  
Accurate Estimation ◽  
Rigor Mortis ◽  
Preliminary Note ◽  
Hydrogen Ion Concentration ◽  
Electrode Method

Experiments have been made to determine (1) the hydrogen-ion concentra­tions of cardiac and skeletal muscle minced in the cold ( a ) under normal con­ditions, ( b )after stimulation to fatigue, and ( c ) in rigor mortis, and (2) the change of hydrogen-ion concentration following the addition of known amounts of lactic acid. The measurements were made by means of the glass electrode method (Kerridge (1)). The results given are quantitatively only preliminary in character, pending (i) the repetition of the experiments on a larger number of animals, and (ii) the more accurate estimation of corrections due to dilution with saline, &c.

THE DEPENDENCE OF THE HYDROLYSIS OF DIAZOACETIC ESTER ON THE HYDROGEN ION CONCENTRATION

1953 ◽  
Vol 31 (5) ◽  
pp. 493-498 ◽  
Author(s):  
A. V. Willi ◽  
R. E. Robertson
Keyword(s):  
Experimental Error ◽  
Salt Effect ◽  
Sodium Perchlorate ◽  
Glass Electrode ◽  
Hydrogen Ion ◽  
Ion Concentration ◽  
Hydrogen Ion Concentration ◽  
Diazoacetic Ester ◽  
Hydrolysis Of ◽  
Special Case

The catalytic constants of the H3O+ catalyzed hydrolysis of diazoacetic ester in aqueous solutions containing sodium perchlorate have been determined at three different ionic strengths. A spectrophotometric method was used to follow the rate. The results indicate a strong positive salt effect. Measurements at the ionic strength μ = 0.110 were carried out in the pH region from 1.97 to 5.19. For solutions containing less than 10−3 N perchloric acid the pH data were taken from measurements with a. glass electrode in the kinetic cell. Within the limits of experimental error no deviations from proportionality between rate and [H3O+] were found. This result is important in connection with our findings for the benzalaniline hydrolysis since it tests the methods applied and proves that the benzalaniline example with deviations from linearity between rate and [H3O+] is a special case. The diazoacetic ester hydrolysis is not catalyzed by acetic acid molecules.

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