Sulfur-nitrogen-containing analogs of dibenzo-15-crown-5 as extraction reagents for the selective isolation of mercury

Journal Article · Wed Dec 10 00:00:00 EST 1986 · J. Anal. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:5787223

Zolotov, Yu A; Poddubnykh, L P; Dmitrienko, S G; Kuz'min, N M; Formanovskii, A A

On the seven sulfur-nitrogen-containing derivatives of dibenzo-15-crown-5 studied, the following are selective reagents with respect to mercury: 2,3:8,9-dibenzo-13-tosyl-4,7-dioxa-1,10,13-triazacyclopentadecane and 2,3:8,9- dibenzo-13-thia-4,7-dioxa-1,10-diazacyclopentadecane (R). The best counter-ions are sulfophthalein dyes. In the presence of an anion (An/sup -/), a compound with ratio Hg:R:An/sup -/=1:1:1 is extracted. An extraction-spectrophotometric method was developed for the determination of mercury directly in the extract by the addition of a solution of dithizon in chloroform. The limit of detection of mercury was 0.04 ..mu..g/ml. The procedure can be used for the determination of mercury in natural waters with a low salt composition.

• Research Organization: Lomonosov Moscow State Univ., Moscow (Russian Federation)
• OSTI ID: 5787223
• Journal Information: J. Anal. Chem. USSR (Engl. Transl.); (United States), Vol. 41:6; Other Information: Translated from Zh. Anal. Khim.; 41: No. 6, 1046-1050(Jun 1986)
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
MERCURY
SOLVENT EXTRACTION
ORGANIC NITROGEN COMPOUNDS
SOLVENT PROPERTIES
ORGANIC SULFUR COMPOUNDS
POLYETHYLENE GLYCOLS
WATER POLLUTION
MONITORING
ANIONS
ANTIMONY
CADMIUM
CATIONS
COBALT
COMPARATIVE EVALUATIONS
DYES
INTERFERING ELEMENTS
LEAD
MATERIALS TESTING
NICKEL
ORGANIC SOLVENTS
REAGENTS
TIN
ZINC
ALCOHOLS
CHARGED PARTICLES
ELEMENTS
EXTRACTION
GLYCOLS
HYDROXY COMPOUNDS
IONS
METALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLLUTION
POLYMERS
SEPARATION PROCESSES
SOLVENTS
TESTING
TRANSITION ELEMENTS
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)
400105 - Separation Procedures