|Document ID (ISN)||104944|
|ISSN - Serial title
||1545-9624 - Journal of Occupational and Environmental Hygiene
|Convention or series no.
||Jeong J.Y., Paik N.W.
||Laboratory and field validation of the GC-NPD method for the measurement of formaldehyde in the workplace
||Apr. 2005, Vol.2, No.4, p.244-250. Illus. 23 ref.
||The aim of this study was to develop a new analytical method for measuring airborne formaldehyde concentrations in workplaces and to evaluate the performance of the method through laboratory and field tests. The method involves adsorption on a sampling tube containing a coated silica gel, followed by gas chromatography on a chromatograph equipped with a nitrogen-phosphorus detector (GC-NPD). In laboratory tests, the GC-NPD method was as sensitive as the NIOSH analytical method, which uses high-performance liquid chromatography equipped with ultraviolet detector. The analytical precision and 95% confidence limit of the estimated error for the GC-NPD method satisfied the OSHA sampling and analytical criteria. In field tests, the overall uncertainty of the GC-NPD method satisfied the NIOSH criteria for sampling and analytical methods.
||formaldehyde; determination in air; sampling and analysis
||evaluation of technique; adsorption sampling; high-pressure liquid chromatography; gas chromatography; description of technique
||D - Periodical articles
|Country / State or Province||Korea, Republic of|
||Toxic and dangerous substances
|Broad subject area(s)