FIELD: medicine; chemical engineering.
SUBSTANCE: method involves adding 5 mole/l tartaric acid solution of pH=3.0 to bisubstituted 0.01 mole/l ammonium hydrophosphate solution. The solution is deaerated with oxygen concentration being less than 0.001% during 30 s at (-1.5) V. Electrolysis is carried out during 330 s at (-1.5) V. Gas supply is stopped and current-voltage curve is recorded at voltage scanning rate of 300 mV/s. Standard angiotensin II solution is added, stirred and electrochemical concentrating on is carried out on glass-graphite electrode during 330 s at (-1.5) V. Gas supply is stopped and current-voltage curve is recorded at voltage scanning rate of 300 mV/s. Analytical signal of angiotensin II concentration in potential range of 0.3-0.5 V relative to chlorine-silver electrode.
EFFECT: improved sensitivity and express-analysis features.
4 tbl
| Title | Year | Author | Number |
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| METHOD FOR DETERMINING SODIUM PHOSINOPRIL BY APPLYING INVERSION VOLTAMPERMETRY METHOD | 2005 |
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| METHOD OF DETERMINATION OF BENAZEPRYL HYDROCHLORIDE (LOTENSIN) BY INVERSION VOLTAMPEROMETRY | 2004 |
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| METHOD OF DETERMINATION OF HYDROCHLORIDE SPIRAPRYL BY INVERSION VOLTAMPEROMETRY | 2004 |
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| METHOD FOR DETERMINING CARVEDILOL BY MEANS OF INVERSION VOLTAMPEROMETRIA | 2007 |
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| INVERSION VOLTAMPERMETRIC METHOD OF DETERMINING CONCENTRATION OF AMIODARONE (CORDARONE) | 2003 |
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| INVERSE-VOLTAMPERE METHOD OF DETERMINING VERAPAMIL HYDROCHLORIDE | 2007 |
|
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| METHOD FOR QUANTITATIVE DETERMINATION OF HESPEREDIN USING DIFFERENTIAL VOLTAMMETRY METHOD | 2008 |
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RU2381502C2 |
| METHOD FOR DETERMINING CATECHOLAMINE QUANTITY IN URINE | 2000 |
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| QUANTITATIVE DETERMINATION OF ENALAPRILE | 2000 |
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| INVERSE VOLTAMMETRY METHOD FOR DETERMINING DIGOXIN QUANTITY IN BLOOD SERUM | 1996 |
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RU2132553C1 |
