Chemical derivatization analysis of pesticide residues. IX. Analysis of phenol and 21 chlorinated phenols in natural waters by formation of pentafluorobenzyl ether derivatives

Journal Article · · J. Assoc. Off. Anal. Chem.; (United States)

OSTI ID:5701073

Lee, H B; Weng, L D; Chau, A S.Y.

A sensitive, isomer-specific method is described for the simultaneous and quantitative analysis of 22 phenols (phenol, 19 chlorophenols, and 3 chloroalkylphenols) in natural waters. The sample was acidified to pH less than or equal to 2, extracted with dichloromethane, evaporated, and dissolved in acetone. The phenol extract was then reacted with pentafluorobenzyl bromide (PFBBr) to give the PFB ether derivatives. After silica gel column cleanup, the ethers were chromatographed on a 12 m OV-1 fused silica capillary column attached to an electron capture detector (ECD). The detection limit was 0.1 ppB for 1 L samples. Recoveries of phenols from pH 2 water samples fortified at 10, 1, and 0.1 ppB were greater than or equal to 80% in most cases except for phenol which was only 30 to 35% recovered. Coefficients of variation were between 2 and 10% for all phenols. However, phenol recovery was quantitative when the sample volume was reduced to 100 mL. Because ECD sensitivities to the 22 phenol PFB ethers were similar, this method is most suitable for simultaneous screening of nonchlorinated and monochlorinated phenols as well as other high chlorophenols at trace levels. 19 references, 2 figures, 4 tables.

• Research Organization: Environment Canada, Burlington, Ontario
• OSTI ID: 5701073
• Journal Information: J. Assoc. Off. Anal. Chem.; (United States), Journal Name: J. Assoc. Off. Anal. Chem.; (United States) Vol. 67:6; ISSN JANCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ADSORBENTS
AROMATICS
CAPTURE
CHEMICAL ANALYSIS
CHLORINATED AROMATIC HYDROCARBONS
CHROMATOGRAPHY
DATA
ELECTRON CAPTURE
EXPERIMENTAL DATA
EXTRACTION
HALOGENATED AROMATIC HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
PESTICIDES
PHENOLS
POLLUTION
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SILICA GEL
SOLVENT EXTRACTION
WATER
WATER POLLUTION