Reactor-chromatographic determination of vinyl chloride in polyvinyl chloride
The authors carry out a chromatographic study of the volatile products that evolve when various grades of domestic polyvinyl chloride are heated, to determine the concentration of residual monomer. To find vinyl chloride in complex mixtures of air pollutants the authors used sorptive reaction concentration of impurities. This new combination of methods is based on preliminary separation at the sampling stage of impurities that interfere in the analysis, followed by concentration of the desired components in a trap with an adsorbent, and chromatographic determination of the concentrated trace materials. The method obtains low vinyl chloride concentrations (down to 10/sup -4/-10/sup -5/ wt. %) with +/-5 relative error.
- OSTI ID:
- 6848086
- Journal Information:
- Ind. Lab. (Engl. Transl.); (United States), Vol. 52:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PVC
ADSORPTION
AIR POLLUTION MONITORING
CHROMATOGRAPHY
VINYL CHLORIDE
ADSORBENTS
CARCINOGENS
EVAPORATION
QUANTITY RATIO
SILICA GEL
SORPTIVE PROPERTIES
TRACE AMOUNTS
ZEOLITES
CHLORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
PHASE TRANSFORMATIONS
POLYMERS
POLYVINYLS
SEPARATION PROCESSES
SORPTION
SURFACE PROPERTIES
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)