CVAAS

AcronymDefinition
CVAASCold Vapor Atomic Absorption Spectrometry
CVAASCentral Valley Alliance of Atheists and Skeptics (California)
CVAASConsumer Venture Advice and Services (website)
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References in periodicals archive ?
Mercury in air samples was analyzed by CETAC M6000A cold-vapor atomic absorption spectrometer (CVAAS) mercury analyzer.
CETAC M6000A cold-vapor atomic absorption spectrometer (CVAAS) was used for cold vapor analysis.
Determination of Hg in water by CVAAS using 2-aminothiazole modified silica.
time intervals at a fixed temperature of 80 After sonication for different time intervals, the resulted extracted solution were centrifuged at 3000 rpm for 5 min, and supernatant liquids were collected in a polyethylene flask for the determinations of Hg by CVAAS. Blanks were also prepared in the similar procedure.
Mercury determination was carried out by cold vapor atomic absorption spectrometry (CVAAS), using sodium tetrahydroborate as reducing agent and ihydrochloricLoftheeachacidstockas samplecarrier solution.
This process, called cold vapor atomic absorption spectroscopy (CVAAS), is most frequently used to test air samples.
The Hydra AA fully automated analyzer is based on Cold Vapor Atomic Absorption Spectroscopy (CVAAS) for the analysis of mercury in the sub ppb to ppm range.
In addition to INAA, total mercury analysis was performed at NIST using cold vapor atomic absorption spectrometry (CVAAS) following microwave digestion.
Wavelength Slit width Flow air/acetylene Lamp current (nm) (nm) (L/min) (%) FAAS Ca 422.7 0.5 1.2 100 Mg 285.2 0.5 0.9 75 Zn 213.9 0.5 0.9 75 FAES Na 589.0 0.5 1.1 0 K 766.5 0.5 1.1 0 Wavelength Slit width Flow argon Lamp current (nm) (nm) (L/min) (%) HGAAS As 193.7 1 0.2 75 CVAAS Hg 253.7 0.5 0.2 75 FAAS: flame atomic absorption spectrometry; FAES: flame atomic emission spectrometry; HGAAS: hydride generation atomic absorption spectrometry; CVAA: cold vapour atomic spectrometry.
B-THg and U-Hg were determined by cold-vapor atomic absorption spectrophotometry (CVAAS).
Of the three different instrument techniques used in mercury analysis, cold vapor atomic absorption spectrometry (CVAAS) is the most widely accepted.