Abstract: For the analysis of polymerized monomers and residual organic solvents in organic polymeric materials such as resins and plastics, the headspace analysis method is currently mainly used. Organic polymeric materials have strong adsorption to organic solvents, and it is difficult to analyze with direct solid heating The balance between the headspace and the solid phase is reached, and such a balance is difficult to reproduce. The static headspace is generally added with diluent and matrix modifier or the dynamic headspace method is used to determine. The static headspace method was used to measure the monomer and volatility in polystyrene (PS), AS and ABS resins. Water was used as a diluent in the experiment, and DMF was used as the internal standard for dynamic headspace analysis. Du Liming Et al. Used headspace-large-bore capillary gas chromatography to determine the residual toluene, ethyl acetate, butanone and isopropanol in plastic food bags. Yefen et al. Determined the residue in plastic food bags by headspace-gas chromatography Toluene.Teston compares the static headspace method and the dynamic headspace method for the determination of volatile organic residual solvents in phenolic resins. The results show that the dynamic headspace method has better sensitivity. DK-300A Headspace Sampler: (Henan, Hubei, Hunan Headspace Sampler / Headspace Gas Chromatograph) (1) The DK-300A headspace chromatography sampler can be connected to various gas chromatographs at home and abroad. It is an ideal sample introduction to directly introduce the volatile components in liquid or solid samples into the gas chromatograph for separation and detection. The device, using headspace technology, can avoid the lengthy and cumbersome sample preparation process, avoid the impurities brought into the organic solvent to interfere with the analysis, and reduce the pollution to the column and the inlet; headspace chromatography technology has its simple and practical advantages It has been widely used in environmental testing (such as volatile halogenated hydrocarbons in drinking water and volatile organic compounds in industrial sewage), detection of organic residual solvents in pharmaceuticals, food, forensic science, petrochemicals, packaging materials, coatings and wine industry analysis. application. (2) Technical parameters of DK-300A headspace sampler: Headspace bottle heating range: above room temperature ~ 150 ℃, set in increments of 1 ℃ Temperature control range of injection valve: above room temperature ~ 150 ℃, set in increments of 1 ℃ The temperature control range of the sample transmission pipeline: above room temperature ~ 150 ℃, set in increments of 1 ℃ Sample valve volume: 1ml Number of headspace bottles: 9 Headspace bottle specifications: 10ml20ml Synchronous start interface Features of domestic headspace sampler: (Henan, Hubei, Hunan headspace sampler / headspace gas chromatograph) (1) Highly sensitive analysis of volatile components (2) Avoid high boiling point components entering the GC and shorten the analysis time (3) The pollution of the GC is reduced to a minimum, extending the service life of the GC and facilitating maintenance Application range of domestic headspace gas chromatograph: (Henan, Hubei, Hunan headspace sampler / headspace gas chromatograph) (1) Forensic science: Examination of volatile poisons such as blood, urine alcohol, aldehyde, ketone, etc. (2) Traffic safety: Inspection of the alcohol content in the blood of vehicle drivers when drinking and drunk driving (Headspace Gas Chromatograph Guangxi) (3) Brewing industry: determination of low-boiling aroma components in beer (4) Food industry: 6 # solvent residue detection in leaching oil (5) Environmental protection: Determination of volatile halogenated hydrocarbons in surface water and tap water such as rivers, rivers and lakes (6) Pharmaceutical industry: detection of residual solvents in drugs (7) Material control: detection of residual acetaldehyde in beverage bottles Headspace Gas Chromatograph) Application: (Henan, Hubei, Hunan Headspace Sampler / Headspace Gas Chromatograph) (1) Analysis of acetaldehyde in drinking water (2) Detection of ethylene oxide in medical infusion, blood transfusion and syringes (3) Detection of ether and dichloromethane residues in drugs (4) Determination of 1,1-dichloroethane in food packaging (5) Analysis of solvent residues in cigarette packages (6) Analysis of residual chlorine-containing compounds Steel Electric Bain Marie,Electric Bain Marie Food Warmer ,Kitchen Bain Marie,Electric Bain Marie Food Warmer Jiangmen T2grand Stainless Steel Kitchenware Factory , https://www.yapamit.com