Multielement extraction system for the determination of 18 trace elements in geochemical samples

Journal Article · Thu Jan 01 00:00:00 EST 1981 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00224a017· OSTI ID:6697104

Clark, J R ^[1]; Viets, J G

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1. Colorado School of Mines, Golden

A Methyl isobutyl ketone-Amine synerGistic Iodide Complex (MAGIC) extraction system has been developed for use in geochemical exploration which separates a maximum number of trace elements from interfering matrices. Extraction curves for 18 of these trace elements are presented: Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, Ga, In, Tl, Sn, Pb, As, Sb, Bi, Se, and Te. The acid normality of the aqueous phase controls the extraction into the organic phase, and each of these 18 elements has a broad range of HCl normality over which it is quantitatively extracted, making it possible to determine all 18 trace elements from a single sample digestion or leach solution. The extract can be analyzed directly by flame atomic absorption or inductivity coupled plasma emission spectroscopy. Most of these 18 elements can be determined by flameless atomic absorption after special treatment of the organic extract.

• OSTI ID: 6697104
• Journal Information: Anal. Chem.; (United States), Vol. 53:1, Issue 1
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ANTIMONY
SOLVENT EXTRACTION
ARSENIC
BISMUTH
CADMIUM
COPPER
GALLIUM
GOLD
INDIUM
LEAD
MERCURY
PALLADIUM
PLATINUM
SELENIUM
SILVER
TELLURIUM
THALLIUM
TIN
ZINC
AMINES
HYDROCHLORIC ACID
METHYL ISOBUTYL KETONE
PH VALUE
ELEMENTS
EXTRACTION
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KETONES
METALS
ORGANIC COMPOUNDS
PLATINUM METALS
SEMIMETALS
SEPARATION PROCESSES
TRANSITION ELEMENTS
400105* - Separation Procedures
400104 - Spectral Procedures- (-1987)