色層分析法之原理與應(yīng)用-在線瀏覽
2024-08-31 09:16本頁(yè)面
【正文】 Major Component Analyses Splitless Mode for Trace Component Analyses Pulsed Split Allows for larger injection volume Pulsed Splitless Allows for larger injection volume SEAL (INLET) (SEPTUM) SPLIT VENT TOTAL FLOW COLUMN SEPTUM = CARRIER GAS LINER 50 mL/min 2 mL/min mL/min 48 mL/min mL/min PURGE VENT PURGE VALVE Split Flow Diagram: PreInjection 吹氣捕捉裝置 層析管柱之種類 Column Types LENGTH (meters) . (mm) .510 24 5100 .530 5100 . PACKED SERIES 530 NARROW BORE 填充管柱 Packed 毛細(xì)管柱 Open (Capillary) Wall Coated Open Tube 管柱 填充管柱 ? 玻璃管柱 ? 長(zhǎng) 3 m ? 內(nèi)徑 2至 4 mm ? 內(nèi)部填充表面被覆一層液相的小固體顆粒 ( 60至 100篩目的矽藻土或碳化物 ) 管柱 毛細(xì)管柱 ? 開口式玻璃毛細(xì)管柱 ? 長(zhǎng) 15至 100 m ? 內(nèi)徑 mm ? 管柱裡面塗敷一層液相，現(xiàn)在大部分的毛細(xì)管柱是使用熔矽材質(zhì)，而玻璃管柱也仍被用來(lái)分析揮發(fā)性有機(jī)物 ? 毛細(xì)管柱的分離效果比填充管柱好 10% of Applications Carrier Gas Adsorbent Packed Columns Adsorbent Packing (GSC) Capillary Porous Layer Open Tubular (PLOT) Porous with large surface area Carrier Gas Gas Solid Chromatography (GSC) Partition Packing Packed Columns Carrier Gas Liquid Phase Solid Support Very porous with very high surface area Gas Liquid Chromatography (GLC) Wall Coated Open Tubular (WCOT) Liquid Phase Capillary Columns (90% Of Applications) Like dissolves like or Polar interacts with polar Separation by partitioning or differential solubility in stationary phase Components are separated based on differ
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