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RECORD NUMBER: 256 OF 1579

OLS Field Name OLS Field Data
Main Title Development of a prototype nitrate detector /
Author McCoy, J. ; Forney, L. ; Zakak, A. ; Ehrenfeld, J. ; Driscoll., J. ;
Other Authors
Author Title of a Work
McCoy, J.
CORP Author Abcor, Inc., Cambridge, Mass. Walden Research Div.;Environmental Sciences Research Lab., Research Triangle Park, N.C.
Publisher U.S. Environmental Protection Agency, Office of Research and Development,
Year Published 1974
Report Number EPA/650-2-74-133; EPA-68-02-0591
Stock Number PB-253 442
OCLC Number 39759990
Subjects Nitrates--Measurement. ; Air--Pollution--Measurement--Equipment and supplies.
Additional Subjects Samplers ; Aerosols ; Inorganic nitrates ; Chemical analysis ; Air pollution ; Performance evaluation ; Design criteria ; Field tests ; Laboratory equipment ; Particles ; Monitors ; Electrodes ; Concentration(Composition) ; Ions ; Calibrating ; Air pollution sampling
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101JS8K.PDF
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101JS8K.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJAD  EPA 650/2-74-133 Region 3 Library/Philadelphia, PA 02/11/2000
EJBD ARCHIVE EPA 650-2-74-133 Headquarters Library/Washington,DC 11/04/2013
EJBD  EPA 650-2-74-133 Headquarters Library/Washington,DC 06/27/2014
EKBD  EPA-650/2-74-133 Research Triangle Park Library/RTP, NC 11/16/2016
NTIS  PB-253 442 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation v, 59 pages : illustrations ; 28 cm.
Abstract A semi-continuous prototype detector for suspended atmospheric nitrate was developed, designed, fabricated and tested. The sensing range of the resulting instrument was from less than 1 micrograms/cu m to over 100 micrograms/cu m of suspended nitrate with an analysis time of less than one hour. A series of ambient sampling tests were performed with the prototype instruments run in parallel to three high volume samplers. The results of these tests show that the instrumental measurement compares well with the high volume sampler measurements. Temporal variations in suspended nitrate concentration were monitored showing the feasibility of measuring the dynamic behavior of nitrate in the atmosphere. The prototype detector uses a LEAP sampler to collect atmospheric particulate into aqueous solution where the soluble nitrate is dissolved. The resulting solution is analyzed by an ionselective electrode technique for nitrate. Operating and calibrating functions may be controlled automatically or manually.
Notes "EPA contract no. 68-02-0591, program element no. 1A1010, ROAP no. 25AEK." "December 1974." "EPA/650-2-74-133."
Place Published Washington, D.C.
Corporate Au Added Ent United States. Environmental Protection Agency. Office of Research and Development.
Title Ser Add Ent Research reporting series. Environmental protection technology ; EPA-650/2-74-133.
NTIS Title Notes Final rept. Jul 73-Sep 75.
PUB Date Free Form 1974
Series Title Untraced Environmental protection technology series ; EPA-650/2-74-133
Category Codes 14B; 68A; 99A
NTIS Prices PC A04/MF A01
BIB Level m
Medium unmediated
Content text
Carrier volume
Cataloging Source OCLC/T
Control Number 326619459
OCLC Time Stamp 20161104065807
Language eng
SUDOCS Number EP 1.23/2:650/2-74-133
Origin OCLC
Type MERGE
OCLC Rec Leader 01674cam 22004094a 45010