Dielectric analysis of aqueous poly(L-glutamic acid) and poly-L-(glutamic acid4, Tyrosine1) solutions at high frequencies from capacitance measurements
p. 521-526
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2017
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oai:112.137.131.14:VNU_123-580512017-09-30T19:57:55Z Dielectric analysis of aqueous poly(L-glutamic acid) and poly-L-(glutamic acid4, Tyrosine1) solutions at high frequencies from capacitance measurements Jorge Monreal Tatiana Eggers Manh-Huong Phan Dielectric relaxation Dielectric loss Permittivity High frequency Impedance analyzer p. 521-526 A new parallel-plate capacitor fixture has been designed and successfully used to measure dielectric loss of polyelectrolyte solutions with volumes as low as droplets of 13-26 mL. It is particularly useful when studying polypeptides that are either high-cost or can be synthesized only in limited quantities. The ease with which the fixture can be used to obtain preliminary dielectric loss data yields savings in time and cost. In this study capacitance measurements were performed in a wide range of frequencies between 1 and 800 MHz using an Agilent 4191RF Impedance Analyzer. Accuracy of measurements was carefully examined through a comparison of measured conductivity of 1M NaCl against Stogryn's equation for conductivity. A 0.3% difference between the experimentally measured and theoretically calculated results has been found, demonstrating the validity of the proposed analysis method. 2017-08-23T09:33:33Z 2017-08-23T09:33:33Z 2016 Article 2468-2284 http://repository.vnu.edu.vn/handle/VNU_123/58051 en application/pdf ĐHQGHN |
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Vietnam National University, Hanoi |
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VNU Library & Information Center |
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Vietnam |
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VNU Digital Repository |
| language |
English |
| topic |
Dielectric relaxation Dielectric loss Permittivity High frequency Impedance analyzer |
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Dielectric relaxation Dielectric loss Permittivity High frequency Impedance analyzer Jorge Monreal Tatiana Eggers Manh-Huong Phan Dielectric analysis of aqueous poly(L-glutamic acid) and poly-L-(glutamic acid4, Tyrosine1) solutions at high frequencies from capacitance measurements |
| description |
p. 521-526 |
| format |
Article |
| author |
Jorge Monreal Tatiana Eggers Manh-Huong Phan |
| author_facet |
Jorge Monreal Tatiana Eggers Manh-Huong Phan |
| author_sort |
Jorge Monreal |
| title |
Dielectric analysis of aqueous poly(L-glutamic acid) and poly-L-(glutamic acid4, Tyrosine1) solutions at high frequencies from capacitance measurements |
| title_short |
Dielectric analysis of aqueous poly(L-glutamic acid) and poly-L-(glutamic acid4, Tyrosine1) solutions at high frequencies from capacitance measurements |
| title_full |
Dielectric analysis of aqueous poly(L-glutamic acid) and poly-L-(glutamic acid4, Tyrosine1) solutions at high frequencies from capacitance measurements |
| title_fullStr |
Dielectric analysis of aqueous poly(L-glutamic acid) and poly-L-(glutamic acid4, Tyrosine1) solutions at high frequencies from capacitance measurements |
| title_full_unstemmed |
Dielectric analysis of aqueous poly(L-glutamic acid) and poly-L-(glutamic acid4, Tyrosine1) solutions at high frequencies from capacitance measurements |
| title_sort |
dielectric analysis of aqueous poly(l-glutamic acid) and poly-l-(glutamic acid4, tyrosine1) solutions at high frequencies from capacitance measurements |
| publisher |
ĐHQGHN |
| publishDate |
2017 |
| url |
http://repository.vnu.edu.vn/handle/VNU_123/58051 |
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1680967833762136064 |