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The conductance of electrolytes in high electric fields Birnboim, Meyer Harold
Abstract
An apparatus was developed to measure the conductance change of electrolytes in the presence of high electric fields to a high degree of accuracy, end is described herein. The apparatus employs square wave pulse excitation to a special conductivity bridge, and permits direct observation of pulse shape on a high speed oscilloscope, as well as separate compensation of resistive and capacitive unbalance. With this apparatus, the high-field electric conductances of several solutions of biologically interesting substances were investigated and classified. The substances investigated, together with the observed increment in electric conductance at a field strength of 10⁵ volts per cm., are listed: 1. glutamine (1.25 x 10⁻⁴M), 0.56% 2. 1 (﹢) arginine monhydrochloride (2.0x10⁻⁴M), 0.48% 3. acetic acid (3.75 x 10⁻⁴M), 4.6% 4. p-amino benzoic acid (5 x 10⁻³M), 5.5% 5. sulfanilic acid (6.55 X 10⁻⁵M), 1.4% 6. 1 (﹢) glutamic acid (1.22 x 10⁻³M), 2.6% 7. glycine (0.61 M), 1.9% 8. protamine sulfate (7.9 x 10⁻⁵g/cc.) 40% 9. agar (3 x 10⁻⁴ g/cc), 37% Some of the observed results have been compared with those obtained by other methods, while the remaining substances have not been previously reported. The results were discussed in the light of available theoretical information on the high-field conductance effect in various types of electrolytes.
Item Metadata
Title |
The conductance of electrolytes in high electric fields
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1956
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Description |
An apparatus was developed to measure the conductance change of electrolytes in the presence of high electric fields to a high degree of accuracy, end is described herein. The apparatus employs square wave pulse excitation to a special conductivity bridge, and permits direct observation of pulse shape on a high speed oscilloscope, as well as separate compensation of resistive and capacitive unbalance.
With this apparatus, the high-field electric conductances of several solutions of biologically interesting substances were investigated and classified. The substances investigated, together with the observed increment in electric conductance at a field strength of 10⁵ volts per cm., are listed:
1. glutamine (1.25 x 10⁻⁴M), 0.56%
2. 1 (﹢) arginine monhydrochloride (2.0x10⁻⁴M),
0.48%
3. acetic acid (3.75 x 10⁻⁴M), 4.6%
4. p-amino benzoic acid (5 x 10⁻³M), 5.5%
5. sulfanilic acid (6.55 X 10⁻⁵M), 1.4%
6. 1 (﹢) glutamic acid (1.22 x 10⁻³M), 2.6%
7. glycine (0.61 M), 1.9%
8. protamine sulfate (7.9 x 10⁻⁵g/cc.) 40%
9. agar (3 x 10⁻⁴ g/cc), 37%
Some of the observed results have been compared with those obtained by other methods, while the remaining substances have not been previously reported. The results were discussed in the light of available theoretical information on the high-field conductance effect in various types of electrolytes.
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Genre | |
Type | |
Language |
eng
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Date Available |
2012-02-02
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0085329
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
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Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.