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。
2
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。
3
Stress on summerize technology of direct extraction of cottonseed kernels and de gossypol with alcohol commercial hexane mixed solvent.