【性状】本品为无色气体;有轻微醚味,易燃
色谱条件与系统适用性试验 用聚苯乙烯-二乙烯基苯为固定相(PLOT Q 型或极性相
近)的毛细管柱;氢气为载气;柱温 90℃;进样口温度为 130℃;检测器为热导检测器,温
度为 130℃。取含有甲醇(0.01%)和二甲醚的混合标准气,由气体进样阀注入气相色谱仪,
记录色谱图。理论板数按二甲醚峰计算应不低于 1500,二甲醚峰与甲醇峰的分离度应符合
要求
毛细管柱:30m*0.53mm*40um,HH-PLOT Q
Dimethyl ether
Erjiami
Dimethyl Ether
C2H6O 46.07
[115 10 6]
This product contains no less than 99.5% (ml/ml) of dimethyl ether (C2H6O).
【 Character 】 This product is a colorless gas; Mild ether odor, flammable
Chromatographic conditions and system suitability test using polystyrene divinylbenzene as stationary phase (PLOT Q-type or polar phase)
Near capillary column; Hydrogen is the carrier gas; Column temperature 90 ℃; The inlet temperature is 130 ℃; The detector is a thermal conductivity detector, with temperature
The temperature is 130 ℃. Take a mixed standard gas containing methanol (0.01%) and dimethyl ether, and inject it into the gas chromatograph through the gas injection valve,
Record the chromatogram. The number of theoretical plates calculated based on the dimethyl ether peak should not be less than 1500, and the separation degree between the dimethyl ether peak and the methanol peak should comply with
requirement