Electrochemical preconcentration of metals using mercury film electrodes followed by electrothermal vaporization into an inductively coupled plasma and determination by atomic emission spectrometry

Journal Article · Tue Sep 15 04:00:00 EDT 1987 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00145a012· OSTI ID:5919748

Matusiewicz, H; Fish, J; Malinski, T

The production and use of mercury film electrodes for matrix separation and preconcentration of trace metals from biological materials prior to their determination by inductively coupled plasma atomic emission spectrometry (ICP-AES) are described. Separation and preconcentration are achieved by controlled potential electrolysis on mercury-plated, glassy carbon electrodes. Electrodes with trace metal amalgam are transferred to an electrothermal vaporization device, the mercury is removed by evaporation, and the metals are then evaporated and determined simultaneously by ICP-AES. The method is applied to the determination of eight trace elements, Cd, Co, Cr, Cu, Mn, Ni, Pb, and Zn, in water solution and in the biological standard reference materials urine and bovine liver. The method precision varied between 3.8 and 8.1%.

• Research Organization: Food and Drug Administration, Cincinnati, OH
• OSTI ID: 5919748
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 59:18; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400105* -- Separation Procedures
550200 -- Biochemistry
59 BASIC BIOLOGICAL SCIENCES
ANIMALS
BIOLOGICAL MATERIALS
BIOLOGICAL WASTES
BODY
BODY FLUIDS
CADMIUM
CATTLE
CHEMICAL ANALYSIS
CHROMIUM
COBALT
COPPER
DATA
DIGESTIVE SYSTEM
DOMESTIC ANIMALS
EFFICIENCY
ELECTRODES
ELECTROLYSIS
ELEMENTS
EMISSION SPECTROSCOPY
EVAPORATION
EXPERIMENTAL DATA
GLANDS
HYDROGEN COMPOUNDS
INFORMATION
LEAD
LIVER
LYSIS
MAMMALS
MANGANESE
MATERIALS
MERCURY
METALS
NICKEL
NUMERICAL DATA
ORGANS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PLASMA
POTENTIOMETRY
QUANTITATIVE CHEMICAL ANALYSIS
RUMINANTS
SEPARATION PROCESSES
SPECTROSCOPY
TITRATION
TRACE AMOUNTS
TRANSITION ELEMENTS
URINE
VERTEBRATES
WASTES
WATER
ZINC