Accession Number:

ADA066979

Title:

Blank Corrections for Ultratrace Atomic Absorption Analysis,

Descriptive Note:

Corporate Author:

COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H

Personal Author(s):

• Cragin,James C.
• Quarry,Steven T.

Report Date:

1979-01-01

Pagination or Media Count:

9.0

Abstract:

Both flame and flameless atomic absorption AA measurements require a distilled water blank correction. This correction is due to the analyte contained in the distilled water used to prepare the standards and not, as commonly thought, to the reference blank used to zero the instrument. Flameless AA analyses of acidified heavy metal samples generally require additional corrections for the furnace deflection blank and for an acid blank. To prevent adsorption losses, the acid blank should be determined by extrapolation of a series of acid dilutions in distilled water. Author

Descriptors:

• *ABSORPTION SPECTRA
• *TRACE ELEMENTS
• ADSORPTION
• STANDARDS
• INSTRUMENTATION
• FLAMES
• CORRECTIONS
• HEAVY METALS
• SPECTROPHOTOMETRY

Subject Categories:

• Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE