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| 001 | 654832 | ||
| 005 | 20231030041317.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\20519 | ||
| 035 | _aRU\TPU\network\20512 | ||
| 090 | _a654832 | ||
| 100 | _a20170524a2011 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aPotentiometric determination of the total acidity and concentration of citric acid in wines _fE. A. Zakharova [et al.] |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References: p. 853 (12 tit.)] | ||
| 330 | _aThe method of potentiometric titration with a copper electrode is used for the determination of the total acidity and concentration of citric acid (CA) in identifying the adulteration of wines. The procedure is suitable for the determination of citric acid in wines in the range from 0.1 to 3.5 g/L in the presence of 30-fold amounts of tartaric, acetic, malic, succinic acids and a 10-fold amount of oxalic acid after the separation of organic carboxylic acids on an AV-17-8 anion exchanger. The procedure was developed and certified for the potentiometric determination of the mass fraction of citric acid in table wines and wine materials with an error not exceeding 20%. The criteria (mass fraction of citric acid, the percentage of citric acid in the total acidity, and the shape of the curves of potentiometric titration) were proposed for revealing the adulteration of the acid composition of wines. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tJournal of Analytical Chemistry | ||
| 463 |
_tVol. 66, iss. 9 _v[P. 848–853] _d2011 |
||
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aкислотность | |
| 610 | 1 | _aлимонная кислота | |
| 610 | 1 | _aвина | |
| 610 | 1 | _aанализ | |
| 610 | 1 | _aфальсификация | |
| 610 | 1 | _aпотенциометрический анализ | |
| 610 | 1 | _aтитрование | |
| 610 | 1 | _aэлектроды | |
| 701 | 1 |
_aZakharova _bE. A. _cchemist _csenior research fellow at the Tomsk Polytechnic University, candidate of chemical Sciences _f1938- _gElsa Arminana _2stltpush _3(RuTPU)RU\TPU\pers\33332 |
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| 701 | 1 |
_aMoskaleva _bM. L. |
|
| 701 | 1 |
_aAkeneev _bYu. A. _cchemist _cresearcher of Tomsk Polytechnic University _f1961- _gYuriy Anvarovich _2stltpush _3(RuTPU)RU\TPU\pers\35924 |
|
| 701 | 1 |
_aMoiseeva _bE. S. _cchemical engineer _cMetrology Engineer of the second category of Tomsk Polytechnic University, Candidate of chemical sciences _f1980- _gEvgeniya Sergeevna _2stltpush _3(RuTPU)RU\TPU\pers\45381 |
|
| 701 | 1 |
_aSlepchenko _bG. B. _cChemist _cProfessor of Tomsk Polytechnic University, Doctor of chemical sciences _f1956- _gGalina Borisovna _2stltpush _3(RuTPU)RU\TPU\pers\33018 |
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| 701 | 1 |
_aPikula _bN. P. |
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| 801 | 2 |
_aRU _b63413507 _c20191127 _gPSBO |
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| 856 | 4 | _uhttp://dx.doi.org/10.1134/S1061934811090218 | |
| 942 | _cCF | ||