Record Display for the EPA National Library Catalog

RECORD NUMBER: 38 OF 58

OLS Field Name OLS Field Data
Main Title New approaches to the preservation of contaminants in water samples /
Author Saxena, J.
Other Authors
Author Title of a Work
Nies, E.
CORP Author Syracuse Research Corp., NY. Center for Chemical Hazard Assessment.;Environmental Monitoring and Support Lab.-Cincinnati, OH.
Publisher Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory ; For sale by the National Technical Information Service,
Year Published 1979
Report Number EPA-600/4-79-007; EPA-R-804609010
Stock Number PB-293 013
OCLC Number 04787480
ISBN pbk.
Subjects Water--Analysis.
Additional Subjects Samples ; Preservatives ; Sewage ; Water pollution ; Chemical analysis ; Storage ; Cargo transport ; Nitrogen ; Inorganic phosphates ; Biochemical oxygen demand ; Oils ; Greases ; pH ; Antibiotics ; Enzymes ; Biocides ; Substitutes ; Stability ; Antimicrobial agents ; Water pollution sampling
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=910172WX.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBD ARCHIVE EPA 600-4-79-007 Headquarters Library/Washington,DC 11/13/2012
EJBD  EPA 600-4-79-007 c.1 Headquarters Library/Washington,DC 04/02/2014
EKAM  EPA 600/4-79-007 Region 4 Library/Atlanta,GA 07/08/1994
EOBD  EPA 600-4-79-007 NEIC Library/Denver,CO 12/17/1999 DISPERSAL
NTIS  PB-293 013 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation xi, 46 pages : illustrations ; 28 cm.
Abstract
The potential of antibiotics, chemical biocides and lytic enzymes in preserving nutrients, biological oxygen demand and oil and grease in water and sewage effluents was studied. Preliminary studies concerning the effect of drugs on cell growth and oxygen utilization in samples stored at room temperature led to the selection of chlorhexidine, vantocil and many combinations each containing three antibiotics from among polymyxin B, neomycin, erythromycin, streptomycin and chloramphenicol. The effective concentration range was approximately equal to 50 micrograms/ml each antibiotic for clean waters and as high as 200 micrograms/ml each antibiotic for heavily polluted water (e.g. primary effluents). Chlorhexidine and vantocil IB stabilized nitrate and nitrite in fresh waters and relatively clean secondary effluents only. Presence of antibiotics caused interference in determination of orthophosphate. The antimicrobial agents tested interfered with BOD determination by causing inhibition of oxygen depletion and therefore were of no value for preservation of this parameter. Efforts to selectively remove and/or inactivate the drug before BOD determination were unsuccessful. Oil and grease levels were stabilized by antibiotics for up to two weeks in relatively clean waters only. The results demonstrate that antibiotics offer a viable alternative to conventional methods for preservation of some constituents and parameters in fresh water samples but not in sewage effluents.
Notes
Grant no. R 804609010. Jan. 1979. Includes bibliographical references (pages 41-45).