Influence of laboratory environment on the precision and accuracy of trace element analysis

Journal Article · Mon Jul 01 04:00:00 EDT 1985 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00285a050· OSTI ID:5489165

Adeloju, S B; Bond, A M

The influence of the laboratory air quality on the precision and accuracy of elemental analysis at the lower trace/ultratrace levels has been investigated. Considerable variations were observed in a conventional laboratory for the periodic voltammetric measurement of standard solutions of selenium, copper, lead, zinc, nickel, and cobalt, owing to the variability of airborne contamination under this condition. However, the results obtained for cadmium were identical under clean room and conventional laboratory conditions. The sensitivity of the cathodic stripping voltammetry of selenium to other metal ions and the absence of analytical blank for this element provide a novel approach for monitoring the variability of airborne contamination in conventional laboratories. The effect of such variability on the precision and accuracy of trace element analysis is demonstrated for some biological and environmental samples. 17 references, 10 figures, 4 tables.

• Research Organization: Deakin Univ., Waurn Ponds, Australia
• OSTI ID: 5489165
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 57:8; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
ACCURACY
AIR QUALITY
ANIMAL TISSUES
BODY
CADMIUM
CHEMICAL ANALYSIS
COBALT
COPPER
DATA
DIGESTIVE SYSTEM
ELEMENTS
ENVIRONMENTAL QUALITY
EXPERIMENTAL DATA
GLANDS
HYDROGEN COMPOUNDS
INFORMATION
LABORATORIES
LEAD
LIVER
METALS
NICKEL
NUMERICAL DATA
ORGANS
OXYGEN COMPOUNDS
PERFORMANCE
QUANTITATIVE CHEMICAL ANALYSIS
SEAWATER
SELENIUM
SEMIMETALS
TISSUES
TRACE AMOUNTS
TRANSITION ELEMENTS
VOLTAMETRY
WATER
ZINC