Sorption preconcentration of mercury(II) on silica gel chemically modified by 2,5-dimercapto-1,3,4-thiadiazole

Journal Article · Fri Nov 20 04:00:00 EST 1987 · J. Anal. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:7196653

Simonova, L N; Kudryavtsev, G V; Bruskina, I M; Ispravnikova, V V

To solve problems of environment protection, effective methods for the analytical control of the content of toxic substances, including mercury, are required. Mercury must be preconcentrated because of the low levels of its content in natural waters. One of the effective methods of preconcentration with simultaneous conservation of mercury is the use of chelate-forming sorbents. Sorbents based on silica gel with grafted N,S-containing dithiocarbamate and 2-aminocyclopent-1-enedithiocarbamic acid groups are popular. These sorbents have all the positive properties of the inorganic matrix, while the chelate-forming group grafted onto them ensures selectivity of sorption. The aim of this work was to study the sorption conditions and the subsequent determination of mercury(II) in natural waters using a sorbent based on silichrome, chemically modified by 2,5-dimercapto-1,3,4-thiadiazole (bismuthol I).

• Research Organization: M. V. Lomonosov Moscow State Univ. (USSR)
• OSTI ID: 7196653
• Journal Information: J. Anal. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Anal. Chem. USSR (Engl. Transl.); (United States) Vol. 42:6; ISSN JACUA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400105 -- Separation Procedures
520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION SPECTROSCOPY
ADSORBENTS
ADSORPTION
AZOLES
CHELATES
CHELATING AGENTS
COMPLEXES
ELEMENTS
HETEROCYCLIC COMPOUNDS
INTERFERING ELEMENTS
MERCURY
MERCURY COMPOUNDS
METALS
MONITORING
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PH VALUE
POLLUTION
POLLUTION ABATEMENT
SENSITIVITY
SILICA GEL
SORPTION
SORPTIVE PROPERTIES
SPECTROSCOPY
SURFACE PROPERTIES
THIADIAZOLES
VALENCE
WATER POLLUTION
WATER POLLUTION ABATEMENT