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Main Title Importance of Sample pH on Recovery of Mutagenicity from Drinking Water by XAD Resins.
Author Ringhand, H. P. ; Meier, J. R. ; Kopfler, F. C. ; Schenck, K. M. ; Kaylor, W. H. ;
CORP Author Health Effects Research Lab., Cincinnati, OH. Toxicology and Microbiology Div.
Year Published 1987
Report Number EPA/600/J-87/081;
Stock Number PB88-107123
Additional Subjects Organic compounds ; Chlorination ; Potable water ; Toxicology ; pH ; Water analysis ; Acidity ; Environmental impact ; Reprints ; Mutagenicity ; Health risks
Library Call Number Additional Info Location Last
NTIS  PB88-107123 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
Abstract Sample pH and the presence of a chlorine residual were evaluated for their effects on the recovery of mutagenicity in drinking water following concentration by XAD resins. The levels of mutagenicity in the pH 2 concentrates were 7-8 fold higher than those of the pH 8 concentrates, suggesting that acidic compounds accounted for the majority of the mutagenicity. The presence of a chlorine residual had little effect on the levels of mutagenicity at either pH. Comparisons of the mutagenic activity for the pH 2 resin concentrates vs. pH 8 concentrates prepared by lyophilization further indicated that the acidic mutagens were products of disinfection with chlorine and not artifacts of the sample acidification step in the concentration procedure.
Supplementary Notes Pub. in Environmental, Science and Technology, v21 n4 p382-387 Apr 87.
NTIS Title Notes Journal article.
Title Annotations Reprint: Importance of Sample pH on Recovery of Mutagenicity from Drinking Water by XAD Resins.
PUB Date Free Form 1987
Category Codes 57Y; 99A; 57U; 68D
NTIS Prices PC A02/MF A01
Primary Description 600/11
Document Type NT
Cataloging Source NTIS/MT
Control Number 735121265
Origin NTIS
Type CAT