Objective to determine organic solvent residual volume in felodipine raw material by headspace gas chromatography.
目的建立测定非洛地平原料药中有机残留溶剂的顶空气相色谱法。
Conclusion: the developed method is simple, sensitive, and accurate for the residual solvent analysis in raw material drug of tetracaine hydrochloride.
结论：本方法简单、灵敏、可靠，适用于盐酸丁卡因原料药中残留溶剂的分析检测。
Oil - displacement surfactants OCS - 1 and OCS - 2 were prepared using vacuum residual oil from Daqing and Dagang as raw material respectively.
利用大庆减压渣油和大港减压渣油分别制备出驱油用表面活性剂ocs-1和ocs -2。
The residual raw materials of dry crops can be stems and leaves of sugar cane.
所述的干燥农作物剩余原料可以为甘蔗的茎、叶。
Carbon black scrubber is an important equipment in synthetic ammonia plant in which residual oil is used as raw material to produce synthetic gas.
炭黑洗涤塔是渣油制氢生产合成氨装置中的一个重要设备。
The invention has large yield of raw materials, low price and lower cost, thereby recycling the residual slag and reducing the environment pollution.
本发明原料产量大，价格低廉，成本较低，对废渣进行了回收利用，减少了环境污染。
Its main role is to reduce the raw water pollution index, and residual chlorine and other impurities, to reverse osmosis water requirements.
其主要作用是降低原水的污染指数和余氯等其他杂质，达到反渗透的进水要求。
In petrochemical production, the residual oil by partial oxidation process to produce synthetic gas or hydrogen, or as raw materials for the pyrolysis of regenerative furnace.
在石油化工生产中，渣油可通过部分氧化法生产合成气或氢气，或作为蓄热炉裂解制乙烯的原料。
In petrochemical production, the residual oil by partial oxidation process to produce synthetic gas or hydrogen, or as raw materials for the pyrolysis of regenerative furnace.
在石油化工生产中，渣油可通过部分氧化法生产合成气或氢气，或作为蓄热炉裂解制乙烯的原料。
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