FIELD: photometric analysis of aromatic hydroxiderivatives in natural water and sewage. SUBSTANCE: method includes treatment of analyzed solution at pH from 9.0 to 12.0 with tetrafluoroborate of 4-nitrophenyldiasonium up to concentration 0.01-0.03 M and with cation surface-active substances up to concentration $$$ M, sorption of formed colored nitrocompound on polyurethane and measurement of diffuse reflection. EFFECT: improved authenticity of method. 6 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DETERMINATION OF ANIONIC SURFACE-ACTIVE SUBSTANCES | 1992 |
|
RU2041460C1 |
| METHOD OF DETERMINING POLYHEXAMETHYLENE GUANIDINE HYDROCHLORIDE | 2011 |
|
RU2460998C1 |
| METHOD FOR CHROMIUM DETERMINATION | 0 |
|
SU1803839A1 |
| METHOD FOR PRODUCTION OF GRANULATED COMPLEX FERTILIZER | 1993 |
|
RU2077524C1 |
| METHOD OF DETERMINING RHODIUM | 1991 |
|
RU2091792C1 |
| METHOD OF NICKEL DETERMINATION | 0 |
|
SU1803838A1 |
| CATALYSTS FOR SELECTIVITY REDUCING NITRIC OXIDES WITH METHANE | 1995 |
|
RU2080177C1 |
| REAGENT FOR COLORIMETRIC AND PHOTOMETRIC DETERMINATION OF NITRITES IN AQUEOUS SOLUTIONS | 1992 |
|
RU2038579C1 |
| ANTITUMOR AGENT | 1994 |
|
RU2086261C1 |
| ANTIHYPOXIC COMPLEX | 1997 |
|
RU2137478C1 |
