FIELD: chemistry.
SUBSTANCE: method of determining lead involves potentiometric titration of a complexon (III) sample with an indicator electrode of bismuth metal with a buffer solution at pH 3.5-9.0. The invention enables to determine lead (III) with content of 0.14-2.3 mg/ml of a solution in an electrochemical cell with unit determination error of not more than 1%.
EFFECT: easy analysis using nontoxic materials.
2 tbl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DETERMINING ZINC | 2012 |
|
RU2508539C1 |
| METHOD OF DETERMINING COPPER | 2012 |
|
RU2505810C1 |
| METHOD OF DETERMINING BISMUTH | 2011 |
|
RU2477468C1 |
| METHOD OF ELECTROCHEMICAL ANALYSIS OF COMPUNDS | 0 |
|
SU1763964A1 |
| N,N,N,N,TETRA-(BETA-CARBOXYTHENYL)-P-PHENYLENEDIAMINE AS COMPLEXING AGENT FOR DETECTING COPPER | 0 |
|
SU1068421A1 |
| METHOD OF DETERMINATION OF COMPONENTS OF A HIGH-TEMPERATURE SUPERCONDUCTOR | 0 |
|
SU1682920A1 |
| IRON (III) DETERMINATION METHOD | 0 |
|
SU1140033A1 |
| 2-/PARA-(UREIDOSULFONYL)-BENZOLAZO/-L-ALPHA-AMINO-BETA-(4-IMIDAZOLYL)-PROPIONIC ACID AS ANALYTICAL AGENT FOR DETECTION OF IRON | 0 |
|
SU1404506A1 |
| COMPOSITION OF MEMBRANE OF ION-SELECTIVE ELECTRODE FOR DETECTION OF LEAD IONS | 2011 |
|
RU2470289C1 |
| METHOD OF POTENTIOMETRIC DETERMINING OF TUNGSTEN AND PHOSPHORUS AT COMBINED PRESENCE | 0 |
|
SU769426A1 |
