Flame atomic absorption methods of analysis of oilfield brines: cadmium, cesium, chromium, cobalt, lead, nickel, rubidium, and vanadium

Technical Report · Fri Jun 01 04:00:00 EDT 1979

OSTI ID:6227906

Marchin, L M; Collins, A G

Flame atomic absorption spectroscopy was used to determine cadmium, cesium, chromium, cobalt, lead, nickel, rubidium, and vanadium in oilfield brines and synthetic oilfield brines. Many of these elements can be harmful to the environment in only trace amounts. The method of standard addition, a deuterium (D/sub 2/) arc lamp, and sodium ion additions, were used to eliminate interferences. Single-operator precision and accuracy results were determined at the 1 ..mu..g/ml analyte level for brines of different compositions. Also, precision and accuracy determinations were made at several levels of concentration for each element. Good (relative standard deviation < 5%) to fair (RSD < 10%) precision was obtained for most of the elements at and above the 1 ..mu..g/ml level.

• Research Organization: Department of Energy, Bartlesville, OK (USA). Bartlesville Energy Technology Center
• OSTI ID: 6227906
• Report Number(s): BETC/RI-79/8
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000 -- Petroleum-- Properties &amp; Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
ABSORPTION SPECTROSCOPY
ACCURACY
ALKALI METALS
BRINES
CADMIUM
CESIUM
CHEMICAL ANALYSIS
CHROMIUM
COBALT
ELEMENTS
LEAD
METALS
NICKEL
QUANTITATIVE CHEMICAL ANALYSIS
RUBIDIUM
SENSITIVITY
SPECTROSCOPY
TRANSITION ELEMENTS
VANADIUM