Record Display for the EPA National Library Catalog


Main Title Pentachlorophenol in the Environment: Evidence for Its Origin from Commercial Pentachlorophenol by Negative Chemical Ionization Mass Spectrometry.
Author Kuehl, Douglas W. ; Dougherty, Ralph C. ;
CORP Author Florida State Univ., Tallahassee. Dept. of Chemistry.;Environmental Research Lab., Gulf Breeze, FL.
Year Published 1980
Report Number EPA-R-806334-00-10; EPA-600/J-80-085 ; ERL.GB-J0070
Stock Number PB81-125676
Additional Subjects Chemical analysis ; Pollution ; Samples ; Mass spectroscopy ; Reprints ; Chemical ionization mass spectroscopy ; Phenol/pentachloro ; Biological samples ; Phenol/tetrachloro
Library Call Number Additional Info Location Last
NTIS  PB81-125676 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 5p
Commercial pentachlorophenol (PCP) contains significant quantities of tetrachlorophenol (TCP). The occurrence of TCP in environmental samples provides a chemical marker for PCP originating from commercial formulations. Negative chemical ionization mass spectrometry has been used to examine a commercial PCP formulation and a series of environmental and human samples. Tetrachlorophenol was determined by the ion current at m/z 229, tetrachlorophenoxide, and PCP was determined by the ion current at m/z 267, pentachlorophenoxide. The ion current at m/z 267 may include contributions from the oxygen/chloride exchange product of hexachlorobenzene, an environmental precursor of PCP. The ratio of PCP to TCP in Dowcide G-ST, a commercial PCP formulation was 2.5 plus or minus 0.1. The ratio of m/z 267 to m/z 229 in a jellyfish, Mnemiopsis macrydi, from the Gulf of Mexico was 2.7 plus or minus 0.1, in human seman it was 4.1 plus or minus 0.1, and in human adipose tissue it was 15.5 plus or minus 0.1. PCP in the seman was concentrated in the sperm cells by a factor of 9.