skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Direct determination and speciation of mercury compounds in environmental and biological samples by carbon bed atomic absorption spectroscopy

Abstract

A method was developed for the direct determination of mercury in water and biological samples using a unique carbon bed atomizer for atomic absorption spectroscopy. The method avoided sources of error such as loss of volatile mercury during sample digestion and contamination of samples through added reagents by eliminating sample pretreatment steps. The design of the atomizer allowed use of the 184.9 nm mercury resonance line in the vacuum ultraviolet region, which increased sensitivity over the commonly used spin-forbidden 253.7 nm line. The carbon bed atomizer method was applied to a study of mercury concentrations in water, hair, sweat, urine, blood, breath and saliva samples from a non-occupationally exposed population. Data were collected on the average concentration, the range and distribution of mercury in the samples. Data were also collected illustrating individual variations in mercury concentrations with time. Concentrations of mercury found were significantly higher than values reported in the literature for a ''normal'' population. This is attributed to the increased accuracy gained by eliminating pretreatment steps and increasing atomization efficiency. Absorption traces were obtained for various solutions of pure and complexed mercury compounds. Absorption traces of biological fluids were also obtained. Differences were observed in the absorption-temperatures traces ofmore » various compounds. The utility of this technique for studying complexation was demonstrated.« less

Authors:
Publication Date:
OSTI Identifier:
6676977
Alternate Identifier(s):
OSTI ID: 6676977
Resource Type:
Thesis/Dissertation
Resource Relation:
Other Information: Thesis (Ph.D.)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; BLOOD; CHEMICAL ANALYSIS; HAIR; MERCURY; ABSORPTION SPECTROSCOPY; SALIVA; SWEAT; URINE; WATER; ANIMAL TISSUES; ATOMIZATION; BIOLOGICAL MATERIALS; CARBON; MERCURY COMPOUNDS; QUANTITATIVE CHEMICAL ANALYSIS; TRACE AMOUNTS; BIOLOGICAL WASTES; BODY; BODY FLUIDS; ELEMENTS; HYDROGEN COMPOUNDS; MATERIALS; METALS; NONMETALS; ORGANS; OXYGEN COMPOUNDS; SKIN; SPECTROSCOPY; TISSUES; WASTES 400104* -- Spectral Procedures-- (-1987)

Citation Formats

Skelly, E.M.. Direct determination and speciation of mercury compounds in environmental and biological samples by carbon bed atomic absorption spectroscopy. United States: N. p., 1982. Web.
Skelly, E.M.. Direct determination and speciation of mercury compounds in environmental and biological samples by carbon bed atomic absorption spectroscopy. United States.
Skelly, E.M.. Fri . "Direct determination and speciation of mercury compounds in environmental and biological samples by carbon bed atomic absorption spectroscopy". United States.
@article{osti_6676977,
title = {Direct determination and speciation of mercury compounds in environmental and biological samples by carbon bed atomic absorption spectroscopy},
author = {Skelly, E.M.},
abstractNote = {A method was developed for the direct determination of mercury in water and biological samples using a unique carbon bed atomizer for atomic absorption spectroscopy. The method avoided sources of error such as loss of volatile mercury during sample digestion and contamination of samples through added reagents by eliminating sample pretreatment steps. The design of the atomizer allowed use of the 184.9 nm mercury resonance line in the vacuum ultraviolet region, which increased sensitivity over the commonly used spin-forbidden 253.7 nm line. The carbon bed atomizer method was applied to a study of mercury concentrations in water, hair, sweat, urine, blood, breath and saliva samples from a non-occupationally exposed population. Data were collected on the average concentration, the range and distribution of mercury in the samples. Data were also collected illustrating individual variations in mercury concentrations with time. Concentrations of mercury found were significantly higher than values reported in the literature for a ''normal'' population. This is attributed to the increased accuracy gained by eliminating pretreatment steps and increasing atomization efficiency. Absorption traces were obtained for various solutions of pure and complexed mercury compounds. Absorption traces of biological fluids were also obtained. Differences were observed in the absorption-temperatures traces of various compounds. The utility of this technique for studying complexation was demonstrated.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1982},
month = {Fri Jan 01 00:00:00 EST 1982}
}

Thesis/Dissertation:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this thesis or dissertation.

Save / Share: