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《Analytical Instrumentation》 2017-04
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Establishment of a method for determining residual styrene contained in polystyrene

Zheng Lihong;Cai Dengding;Mi Yan;Gao Ling;Xie Lipan;PetroChina Dushanzi Petrochemical Co.;  
Residual styrene contained in polystyrene was determined in this paper with reference to ISO2561:2012,using gas chromatography.The polymer samples were dissolved in N,N-dimethylformamide(DMF)solvent and n-butyl benzene was used as internal standard substance.A little polymer solution was directly injected into gas chromatograph(method A)or precipitant was added into polymer solution,and then supernatant after precipitation would be injected into gas chromatograph(method B).The test results of two methods showed that the repeatability errors were ±5% and recovery rates were 100±5%,they all can meet the test requirement.
【CateGory Index】: O657.71;TQ325.2
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