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氧(yang)化硅膠收(shou)集(ji)管(guan) No.801 不(bu)能被收(shou)集(ji)在活性炭(tan)中的極性溶劑蒸氣，例如甲醇。300mg單個部(bu)分(fen)的試管(guan)裝有溢出(chu)型指示(shi)劑。每盒20支裝。氧(yang)化硅膠收(shou)集(ji)管(guan) No.801 Silica-gel tube
更新時間：2024-01-02
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氧(yang)化硅膠收集管 No.801 Silica-gel tube
氧(yang)(yang)化硅膠收集管 No.801 不(bu)能被收集在活性炭中的極(ji)性溶劑蒸氣，例如甲醇。300mg單個部(bu)分(fen)的試管裝(zhuang)有溢出型指示(shi)劑。每盒20支裝(zhuang)。氧(yang)(yang)化硅膠收集管 No.801 Silica-gel tube
801 is designed for sampling organic solvents in environmental air, particularly for polar solvents such as Methanol and Acetone which cannot be sufficiently adsorbed onto charcoal.
Organic solvent vapour is adsorbed onto the silica gel while passing through the tube. Adsorbed solvent is recovered with a desorption solvent followed by gaschromatographic analysis. When sample air corresponding to 60 to 80 & of the amount causing breakthrough is passed, the colour begins to change from blue to pink by the moisture from the silica gel side predicting breakthrough.
801是(shi)專為抽樣(yang)，尤(you)其是(shi)如甲醇，丙酮極性不能得(de)到(dao)充分(fen)的炭吸附溶(rong)劑(ji)到(dao)環境空氣中有機(ji)溶(rong)劑(ji)。
有(you)機(ji)溶(rong)(rong)劑(ji)蒸氣吸附到硅膠(jiao)管，同(tong)時通(tong)過傳遞(di)。吸附溶(rong)(rong)劑(ji)回(hui)收與gaschromatographic分析奉(feng)行脫附溶(rong)(rong)劑(ji)。當空氣樣本對應60至(zhi)80及造成的(de)數額突破(po)是通(tong)過顏色開始由藍(lan)粉(fen)的(de)水分從硅凝(ning)膠(jiao)方變化(hua)預測(ce)的(de)突破(po)。
Tubes for working environment measurement
| 102SD Acetone | 106SC Carbon monoxide | 107U Ethyl ether |
| 109U Chlorine | 111U Ethyl acetate | 111U Isopropyl acetate |
| 112SC Hydrogen cyanide | 118SD Benzene | 120SB Hydrogen sulphide |
| 120U Hydrogen sulphide | 122SD Ethylene Oxide | 124SB Toluene |
| 126SB Carbon dioxide | 128SD Acrylonitrile | 132SC Vinyl chloride |
| 134SB Trichloroethylene | 135SA Tetrachloroethylene | 138U Butyl acetate |
| 143SB Xylene | 145SA 1,2-Dichloroethylene | 147S Carbon tetrachloride |
| 150U Isopropyl alcohol | 156S Hydrogen fluoride | 158SB Styrene |
| 160S 1,1,1-Trichloroethane | 153U Isobutyl acetate | 178SB Chlorobenzene |
| 183U Cresol | 189U 2-Butanol | 197U Cyclohexanone |
| 198U Methyl cyclohexanone | 196S N,N-Dimethyl formamide | 209U Isopentyl alcohol |
| 141SB Carbon disulphide |
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