FIELD: analytical methods.
SUBSTANCE: method of determining cobalt comprises extracting it from cyanate ion-containing solution with complexing agent and extractant followed by analysis of extract, said extractant and said complexing agent representing a mixture of fusible diantipyrylhexylmethane and benzoic acid taken in molar ratio 1:(0.25÷4), whereas extraction is effected at medium acidity expressed as 0.05-3.00 M HCl, after which extract is titrated.
EFFECT: increased selectivity and safety of analysis.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| COBALT DETERMINATION METHOD | 0 |
|
SU1125544A1 |
| METHOD OF EXTRACTION OF METAL IONS | 2016 |
|
RU2650948C2 |
| METHOD OF DETECTING TITANIUM (IV) | 2009 |
|
RU2407002C1 |
| METHOD OF SEPARATING COPPER(I) AND COPPER (II) | 2009 |
|
RU2416452C1 |
| METHOD OF DETECTING MANGANESE (II) | 2009 |
|
RU2415415C1 |
| METHOD OF EXTRACTING SCANDIUM (III) FOR ITS FURTHER DETERMINATION IN SYSTEM CONTAINING ANTIPIRINE AND SULFOSALICYLIC ACID | 2015 |
|
RU2645068C2 |
| METHOD FOR TIN (II) DETECTION | 2005 |
|
RU2286564C1 |
| METHOD OF EXTRACTION ISOLATION OF COBALT IONS FROM WATER SOLUTIONS | 2007 |
|
RU2336113C1 |
| METHOD OF ISOLATING ELEMENTS FROM SOLUTIONS | 0 |
|
SU1157391A1 |
| METHOD OF EXTRACTING CHROMIUM(III) FROM SOLUTIONS | 0 |
|
SU1130762A1 |
