The New Jersey Institute of Technology's
Electronic Theses & Dissertations Project

Title:	Preconcentration and direct flame ionization method for measurement of non-methane organic compounds in ambient air and statistical analysis of experimental data
Author:	Zuo, Lianyi
View Online:	njit-etd1988-052 (44 pages ~ 1.4 MB pdf)
Department:	Department of Chemical Engineering, Chemistry and Environmental Science
Degree:	Master of Science
Program:	Environmental Science
Document Type:	Thesis
Advisory Committee:	Kebbekus, Barbara B. (Committee chair) Greenberg, Arthur (Committee member)
Date:	1988-05
Keywords:	Air -- Pollution -- Measurement
Availability:	Unrestricted
Abstract:	A fast and reliable method for the determination of non-methane organic compounds (NMOC) in ambient air has been developed. Samples are collected in SUMMA polished stainless steel canisters using a sampling system with a critical orifice as flowrate controller. Analysis of NMOC in the atmosphere via a canister is carried out by cryogenic preconcentration and a direct flame ionization detection method (PDFID). This system is sensitive and provides accurate measurement of ambient NMOC concentration even if the concentration is as low as 0.1 ppm carbon. The performance of the method was characterized using 19 pairs of canister samples and tested by statistical analysis.