Record Display for the EPA National Library Catalog

RECORD NUMBER: 31 OF 993

OLS Field Name OLS Field Data
Main Title 24-Hour Diffusive Sampling of 1,3-Butadiene in Air onto Carbopack X Solid Adsorbent Followed By Thermal Desorption/GC/MS Analysis, Feasibility Studies.
Author McClenny, W. A. ; Whitaker, D. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab. ;ManTech Environmental Technology, Inc., Research Triangle Park, NC.
Publisher 31 Mar 2004
Year Published 2004
Report Number EPA/600/A-04/062;
Stock Number PB2004-106812
Additional Subjects Air pollution monitoring ; Adsorbents ; Diffusive sampling ; Air sampling ; Feasibility sampling ; Feasibility studies ; Solid adsorbent ; Personal sampling device ; Volatile organic compounds ; 1-3-butadiene
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=P100R6R5.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB2004-106812 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 10/29/2004
Collation 18p
Abstract
Diffusive sampling of 1,3-butadiene for 24 h onto the graphic absorbent Carbopack X packed in a stainless steel tube badge with analysis by thermal desorption/gas chromatography (GC) mass spectrometry (MS) has been evaluated in controlled tests. A test matrix of 42 trace-level volatile organic compounds in humidified zero air was established by dynamic dilution of compressed gas standards flowing through an environmental chamber. Conditions for both automated thermal desorption of the badge and GC/MS analyses were optimized for specificity, precision, and sensitivity of response. Analytical system responses for sets of tubes exposed to a given 1, 3-butadiene concentration were typically precise, e.g., a %RSD<10% at 0.5 ppbv, and system response was approximately linear with concentration over the range 0-4 ppbv. No significant systematic variations of response were observed for changes in sample humidity and temperature. Loss of 1, 3-butadiene from tube badge due to reverse diffusion into clean air over 12 h after an initial 12-h exposure at 4 ppbv gave an 11% response decrease. Adding 100 ppbv of ozone during the second 12 h caused no additional response change.