FIELD: analytical chemistry of elements, namely, methods for detecting silver, possible use when detecting silver in technological solutions, natural and technologically produced waters.
SUBSTANCE: method for detection of silver includes preparation of solution of silver I in nitric acid, extraction of silver I from solution using sorbent and transfer of it to complex compound on the surface of sorbent, separation of it from solution and processing of sorbent, measurement of diffusion reflection c of surface complex of silver I and estimation of silver content using calibrating graph, as sorbent, silica gel is used, chemically modified by dipropylsulphide groups, processing of sorbent is performed by 1·10-5-1·10-4M solution of Michler's tio-ketone in 40-60% water solution of ethyl spirits, while measurement of diffusion reflection coefficient is performed at 520 nm.
EFFECT: lowered detection limit.
4 ex, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR DETECTING PALLADIUM | 2005 |
|
RU2287156C1 |
| GOLD DETERMINATION METHOD | 2005 |
|
RU2279060C1 |
| METHOD OF DETERMINING PALLADIUM (II) | 2010 |
|
RU2426986C1 |
| METHOD FOR PHOTOMETRIC DETERMINATION OF PLATINUM (II) | 2015 |
|
RU2593009C1 |
| COPPER DETERMINATION METHOD | 2005 |
|
RU2291422C1 |
| METHOD OF DETECTING SILVER USING POLYMETHACRYLATE MATRIX | 2009 |
|
RU2391659C1 |
| METHOD OF DETERMINING BISMUTH (III) | 2010 |
|
RU2444403C1 |
| METHOD OF DETERMINING PALLADIUM (II) | 2011 |
|
RU2461822C1 |
| METHOD OF DETECTING COBALT (II) | 2008 |
|
RU2374638C1 |
| METHOD OF DETERMINING COBALT (II) | 2011 |
|
RU2456592C1 |
