Instrumental neutron activation analysis of environmental reference materials

Conference · Wed Jan 01 04:00:00 EST 1986 · Trans. Am. Nucl. Soc.; (United States)

OSTI ID:7075889

Guinn, V P; Hsia, H S

In recent years, there has been a great increase in the application of the purely instrumental, nondestructive form of the (instrumental) neutron activation analysis (INAA) method, to a large extent replacing the excellent but more time-consuming sample-destructive carrier-radiochemical-separation form of the NAA method (RC-NAA). Since INAA detects and can measure quite a few major, minor, and trace elements in even a single gamma-ray pulse-height spectrum of a neutron-activated sample, and many of the applications of the INAA method are one in which a large number of elements are of interest (rather than just one or a few), the problem of suitable elemental standards arises. One solution to this problem adopted by many laboratories is to use reference materials, of the same general matrix type as the samples, as multielement standards. Although such a practice has certain disadvantages, it saving of time has led to its wide adoption. Recently in the Univ. of California-Irvine laboratory, a comprehensive application of the INAA Advance Prediction Computer Program (APCP) to reference materials as initiated. Illustrative examples of the procedures adopted are presented.

• Research Organization: Univ. of California, Irvine
• OSTI ID: 7075889
• Report Number(s): CONF-861102-
• Conference Information: Journal Name: Trans. Am. Nucl. Soc.; (United States) Journal Volume: 53
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101* -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
ACTIVATION ANALYSIS
CHEMICAL ANALYSIS
ENVIRONMENTAL MATERIALS
IAEA
INORGANIC COMPOUNDS
INTERNATIONAL ORGANIZATIONS
MATERIALS
NATIONAL ORGANIZATIONS
STANDARDS
TRACE AMOUNTS
US DOC
US DOI
US GS
US NBS
US ORGANIZATIONS
USES