Methods: Active carbon tube adsorption and solvent desorption were used for sampling hexane and analysis was performed by GC(FID).
方法：以活性碳管采集空气中正己烷，用二硫化碳解吸后气相色谱（FID）测定。
Therefore, it is possible to use the cheap solvents (mixture of methanol and water) instead of the expensive hexane and acetone when the Accelerated Solvent Extraction method is employed.
这表明采用加速溶剂提取技术，可用价格较低的甲醇取代昂贵的正己烷和丙酮。
Stress on summerize technology of direct extraction of cottonseed kernels and de gossypol with alcohol commercial hexane mixed solvent.
侧重介绍乙醇轻汽油混合溶剂一次浸出棉仁脱酚工艺。
The properties of some non-hydrocarbons which may substitute hexane as edible oil extraction solvent, especially the toxicity, were introduced so as to provide reference for correspo…
介绍了有望替代己烷等烃类作为食用油浸出溶剂的几种非烃类物质的物化特性，特别是它们的毒性，以供业界参考。
Systematic comparisons between the extraction effects by using mixed solvent and by using hexane alone are made.
对混合溶剂与单用轻汽油的浸出效果作了对比。
The best defatting solvent was n-hexane.
最佳的脱脂溶剂为正己烷。
NaBH4 in hexane or toluene would not initiate the polymerization unless pyridine or THF was used as solvent, but an amorphous polymer was the product.
四氢硼钠在己烷和甲苯溶剂中，不易引发丙烯酸第三丁酯的聚合反应，但在吡啶和四氢呋喃中能引发聚合，亦得到非晶态聚合物。
It was found that both n-hexane and petroleum ether were good solvent for ultrasonic-assisted process.
结果表明，正己烷和石油醚作提取溶剂效果较好。
Abstract : A process for extraction of absolute oil from Sichuan 'paste' tobacco was optimized through single factor test and orthogonal test with n-hexane as extraction solvent.
摘要 ： 以四川‘糊烟’为原料，正己烷为提取溶剂，在单因素试验基础上再经正交试验优化‘糊烟’净油提取工艺；
There were not n-hexane, benzene, toluene and xylene, o-xylene, styrene and other organic solvent residue in the purification of apple polyphenol by the headspace gas chromatograph.
再采用顶空气相色谱法检测所得苹果多酚纯化物中正己烷、苯、甲苯、对二甲苯、邻二甲苯、苯乙烯等有机溶剂残留均低于检测限。
There were not n-hexane, benzene, toluene and xylene, o-xylene, styrene and other organic solvent residue in the purification of apple polyphenol by the headspace gas chromatograph.
再采用顶空气相色谱法检测所得苹果多酚纯化物中正己烷、苯、甲苯、对二甲苯、邻二甲苯、苯乙烯等有机溶剂残留均低于检测限。
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