Concentration and determination of trace organic pollutants in water. [Phenols; organics; halomethanes]

Technical Report · Fri Oct 01 04:00:00 EDT 1976

DOI:https://doi.org/10.2172/7145568· OSTI ID:7145568

Chang, R. C.Y.

A method was developed for determining phenols in natural water, treated drinking water, and wastewater. They are determined by selective sorption on a macroreticular anion-exchange resin, elution with acetone-water, concentration by evaporation after extraction with methylene chloride, and measurement by gas chromatography. Techniques are given for preventing phenol loss. Common inorganic ions and many organic substances cause no interference; neutral organics that are retained by the resin can be removed by a methanol wash. The method gives accurate results for phenol, alkyl- and chloro-substituted phenols in the ppB to ppM range. Volatile compounds, as well as less volatile gas chromatographable compounds can also be determined. Resin purification, sorption columns preparation, thermal desorptions, the mini-sampler, method for analysis of real water for organics and development of analytical method are presented. Finally, a rapid method was developed for concentrating and determining halomethanes in drinking water. The halomethanes are determined by sorption on mini-samplers of macroreticular resin. The halomethanes sorbed on resin are eluted with two milliliters of methanol. Halomethanes are separated on a Tenax-GC column and determined by electron capture gas chromatography. Storage of halomethanes on the mini-sampler was studied. Real water samples were analyzed. (DLC)

• Research Organization: Ames Lab., Iowa (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 7145568
• Report Number(s): IS-T-730
• 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
ADSORPTION
ANIONS
AROMATICS
CHARGED PARTICLES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
ERRORS
EVAPORATION
GAS CHROMATOGRAPHY
HALOGENATED ALICYCLIC HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
ION EXCHANGE
IONS
LIQUID WASTES
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHASE TRANSFORMATIONS
PHENOLS
POLYMERS
RESINS
SEPARATION PROCESSES
SORPTION
WASTE WATER
WASTES
WATER