Determination of endocrine disruption compounds from extract agents by gc - ms 檢測萃取劑中內(nèi)分泌干擾物
Study on extractive distillation of dimethyl carbonate from its azeotrope with methanol using toluene as extracting agent 甲苯萃取精餾分離甲醇與碳酸二甲酯共沸物
In this paper , nono - particles are dispersed in extracting agent , and uhmwpe fiber dispersed with nano - particles is prepared after extracted with the composite extracting agent 本論文將納米粒子分散在萃取劑中,用此復(fù)合萃取劑對uhmwpe凍膠纖維進(jìn)行萃取,制成了納米粒子均勻分散的uhmwpe纖維。
The optimum method of tta extraction : the extracting agent cocentration is 0 . 5mol / l , the diluent is xylene , the extracting media is nitric acid , its concentration is 4mol / l , the extracting time is lomin Tta萃取分離的最佳分離方案:萃取劑濃度為0 . 5mol / l ,稀釋劑采用二甲苯,采用4mol / l的硝酸做為萃取介質(zhì),每次萃取時(shí)間為10min 。
Whether there exists solvent in uhmwpe fibers or not , nano - particles could diffuse into uhmwpe gel fiber after immersed the gel fiber in nano - particles composite extracting agent , and gel fiber has quite strong absorption to nano - particles 無論纖維中溶劑存在與否,將uhmwpe凍膠纖維置于分散有納米粒子的萃取液中一定時(shí)間,納米粒子均可擴(kuò)散進(jìn)入uhmwpe凍膠纖維,且凍膠纖維對納米粒子有較強(qiáng)的吸附作用。