FIELD: analytical methods.
SUBSTANCE: in indicator composition for determining manganese(II), in particular, in waste waters and production solutions, containing 0.6% of sorbent, 0.05% of reagent, medium pH adjusting substance, and water, said sorbent is sulfate-form anionite (AN-31), said reagent is 4-(2-pyridylazo)resorcinol, and pH of medium is adjusted with 0.0035-0.004% of ammonia. Concentration of Mn2+ ions is measured spectrophotometrically in presence of above-defined indicator.
EFFECT: increased determination selectivity and accelerated analytical procedure.
3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| INDICATOR COMPOSITION FOR JOINT DETERMINATION OF COPPER(II) AND MANGANESE(II) IN AQUEOUS SOLUTIONS | 2004 |
|
RU2253864C1 |
| INDICATOR COMPOSITION FOR DETERMINING COPPER(II) IN AQUEOUS SOLUTIONS | 2002 |
|
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| METHOD FOR COPPER (II) AND MANGANESE (II) DETERMINATION BY INDICATING TUBE IN CASE OF THEIR JOINT PRESENCE IN SOLUTIONS FOR NATURAL WATERS ANALYSIS | 2015 |
|
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| INDICATING COMPOSITION FOR GOLD (III) ASSAY IN AQUEOUS SOLUTIONS | 2004 |
|
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| INDICATOR COMPOSITION FOR DETERMINING GOLD(III) IN AQUEOUS SOLUTIONS | 2006 |
|
RU2308718C1 |
| INDICATING COMPOSITION FOR MOLYBDENUM ( VI ) DETECTION IN AQUEOUS SOLUTIONS | 2004 |
|
RU2252415C1 |
| METHOD OF PRODUCING TEST SYSTEM FOR DETERMINING CONCENTRATION OF COPPER | 2023 |
|
RU2818003C1 |
| INDICATOR COMPOSITION TO DETECT NICKEL (II) IN AQUEOUS SOLUTIONS | 2002 |
|
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| INDICATOR COMPOSITION FOR DETERMINING GOLD(III) IN AQUEOUS SOLUTIONS | 2005 |
|
RU2291423C1 |
| INDICATOR COMPOSITION FOR ASSAY OF RHENIUM (VII) IN AQUEOUS SOLUTIONS | 2002 |
|
RU2227913C1 |
