FIELD: analytical methods.
SUBSTANCE: reagent indicator paper contains containing zirconyl hexazyanoferrate has yellowish color or white color with slight yellow shadow and, upon interaction with iron(II), forms blue colored product. Advantage of the method consists in achievement of sharp color transition after reaction of indicator with iron(II) compound and also resistance to reducing substances as well as possibility of determining iron(II) within wide concentration and sample volume ranges with a high sensitivity, especially in presence of iron(III) compounds, alkali, alkali-earth, and heavy metals, ascorbic acid, and dimethylhydrazine.
EFFECT: enabled selective determination of ferrous compounds with high determination accuracy.
2 dwg, 3 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| REAGENT INDICATOR PAPER TESTS BASED ON CHROMOGENIC ION-EXCHANGE CELLULOSES AND METHOD OF MANUFACTURE THEREOF | 1997 |
|
RU2126963C1 |
| INDICATING METHOD FOR FERROCENE DETERMINATION IN PETROL | 2007 |
|
RU2327157C1 |
| REAGENT INDICATING PAPER FOR DETERMINING ALUMINUM | 2005 |
|
RU2284520C1 |
| METHOD FOR IRON CONTENT DEFINITION IN CAR GASOLINE, INDICATION TEST FOR METHOD IMPLEMENTATION, AND METHOD OF OBTAINING INDICATION TEST | 2007 |
|
RU2339943C1 |
| INDICATIVE TESTING AGENT FOR DETERMINING TRACE AMOUNTS OF SUBSTANCES | 2010 |
|
RU2426114C1 |
| TEST-BAND FOR DETERMINING CORROSIVE IONS OF METALS ON METALLIC SURFACE | 2007 |
|
RU2326380C1 |
| REAGENT INDICATOR PAPER FOR DETERMINATION OF CHLORIDE IN WATER BODIES | 2021 |
|
RU2758898C1 |
| INDICATOR STRIP OF RIB-DIAZO-TEST FOR INDICATOR MEANS TO DETERMINE AUTHENTICITY OF MEDICINE SUBSTANCE | 2018 |
|
RU2680391C1 |
| METHOD FOR IRON CONTENT DEFINITION IN CAR GASOLINE, INDICATOR ON CARRIER FOR METHOD IMPLEMENTATION, AND METHOD OF OBTAINING CARRIER INDICATOR FOR IRON CONTENT DEFINITION IN GASOLINE | 2007 |
|
RU2339942C1 |
| REAGENT INDICATOR PAPER TESTS BASED ON CHROMOGENIC CELLULOSES AND METHOD OF THEIR PREPARATION | 1997 |
|
RU2123689C1 |
