FIELD: chemistry.
SUBSTANCE: invention can be used for simultaneous determination of content of ions of transition metals Fe(III), Fe(II), Cu, Pb, Zn, Ni, Co, Cd, Mn in natural, surface, waste, underground water and water extracts of saline soil. High-performance liquid chromatography is used for simultaneous determination of content of ions with separation of the ions in a chromatographic column in eluent flow. The eluent consists of a solution of sodium octane sulphonate, sodium hydrotartrate and acetonitrile in dionised water. Mixing is then carried out in a post-column reaction module with a reagent which is a solution of PAR ([4-(2-pyridylazo) resorcinol], glacial acetic acid and aqueous ammonia in deionised water. Further, the difference in optical absorption of the eluent and complexes of the determined ions with the added reagent is detected using spectrophotometric detector in the visible spectrum at 520 nm.
EFFECT: increased accuracy, faster simultaneous determination of content of transition metal ions in natural, surface, waste, underground water and water extracts of saline soil.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF SIMULTANEOUS DETERMINATION OF DIEHTYLENE GLYCOL AND METHANOL IN NATURAL AND SEWAGE WATER BY METHOD OF LIQUID CHROMATOGRAPHY | 2012 |
|
RU2491544C1 |
| METHOD FOR DETERMINING MASS CONCENTRATION OF TOTAL IRON IN ASSOCIATED WATERS AND WATERS OF OIL AND GAS CONDENSATE FIELDS BY X-RAY FLUORESCENCE METHOD | 2019 |
|
RU2760002C2 |
| METHOD OF SEPARATING PLATINUM (II, IV) AND PALLADIUM (II) FROM SILVER (I), IRON (III) AND COPPER (II) IN HYDROCHLORIC ACID SOLUTIONS | 2019 |
|
RU2694855C1 |
| METHOD OF CHROMATOGRAPHIC SEPARATION OF TRANSITION METALS | 0 |
|
SU1749827A1 |
| METHOD FOR PHOTOMETRIC DETERMINATION OF CADMIUM | 1991 |
|
RU2019819C1 |
| METHOD OF COMBINED DETERMINATION OF Cu(II), Pb(II), Fe(III) AND Bi(III) IONS BY METHOD OF CAPILLARY ZONE ELECTROPHORESIS | 2012 |
|
RU2535009C2 |
| METHOD OR CLEANING SOLUTIONS FROM SELENIUM AND ARSENIC | 2014 |
|
RU2592596C2 |
| METHOD FOR METAL AMOUNT DETERMINATION USING POLYMETHACRYLATE MATRIX | 2015 |
|
RU2613762C1 |
| METHOD OF MANUFACTURE OF INDICATOR PLATE FOR DETERMINATION OF MICROPRIMES OF LEAD IN VEGETABLE RAW MATERIALS | 2016 |
|
RU2624849C1 |
| METHOD OF IRON DETERMINATION IN THE AQUEOUS SOLUTION | 0 |
|
SU1709195A1 |
