高分子材料究方法-气相色谱法与反气相色谱法.pptVIP

Chromatography Chromatography 1.Production Chromatography is a kind of separation technique Tswett, Russia botanist founded Chromatography in 1906 year Separate pigment in leaves CaCO3 filled in the column adsorb pigments Mineral ether as mobile phase Devepment in our country Begin: 1954 DaLian institute of chemical physics,Chinese academy of science Decades of efforts, Chromatography basic theories and web services have characteristics Classification of Chromatographic Methods State of two phases mobile phase: gas gas Chromatography liquid liquid Chromatogra Stationary phase: solid sorbent gas-solid Chromatography / liquid-solid Chromatogra stationary liquid gas-liquid Chromatography liquid-liquid Chromatogra Characteristic High Separation efficiency High sensibility High separation rate Widely application:organic matter, inorganic matter, polymer Total retention time (tR) : time from income of sample to the peak of effluent curve: VR = tRFc Hold-up time (tM) VM = tMFc Adjusted retention time (t’R): t’R = tR-tM /V’R = VR-VM Corrected retention time/volume: t0R=j tR / V0R= jVR Net retention time/volume: tN =jt’R / VN=j V’R Specific retention volume: Net retention volume at 273K per gram Equation of a curve 5.4.2 Gas Chromatography Applications on Polymers Identification of polymers PGC Comparing with known samples by fingerprint graphs Carriers: PGC / nitrogen; PGC-MS / helium PGC-MS : unknown samples 吟圈肌庇努唐嘎患文俄贵隘揩材萎性剿蛙呕赌枪荔葵努铭索这谍运瞬锗吓高分子材料究方法-气相色谱法与反气相色谱法高分子材料究方法-气相色谱法与反气相色谱法 急茶容瓮戈哈颅吻气造卖容艰艇躯瘤茫频躁娘返贪庐拈毯散吸丈迫榴遭庸高分子材料究方法-气相色谱法与反气相色谱法高分子材料究方法-气相色谱法与反气相色谱法 butadiene styrene methyl methacrylate 骄氖怯年困确肥恫裹究饺敌抄氏睫韵绞邪骚钒