[Determination of ethylene oxide and acetaldehyde in petrochemical exhaust based on thermal desorption- gas chromatography-mass spectrometry]. [PDF]
Se PuLi YJ.
europepmc +1 more source
, 2011 单嘴真空精炼装置是一种新型的炉外精炼设备。采用80 t单嘴真空精炼装置进行了127炉脱碳工业试验,试验结果表明,单嘴真空精炼装置可以获得较好的脱碳效果,试验最低碳质量分数为10×10-6。主要介绍了单嘴精炼装置的试验情况,分析了钢包底吹气体流量、钢包内渣层厚度、钢包自由空间高度、脱碳时间、钢水温度及成分对脱碳效果的影响 ...
张永亮 +5 more
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[Simultaneous determination of three tryptamines in foods by ultra performance liquid chromatography-tandem mass spectrometry coupled with hydrophilic column separation]. [PDF]
Se PuLiao XL +7 more
europepmc +1 more source
, 1919 錢牧齋[謙益], 何義門[焯]評註 ; [郝天挺註].Cover and edge title: 評註唐詩鼓吹.Qian Muzhai [Qianyi], He Yimen [Zhuo] ping zhu ; [Hao Tianting zhu].Cover and edge title: Ping zhu Tang shi gu ...
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[Determination of six whitening ingredients in cosmetics by ultra performance liquid chromatography coupled with photodiode array detector and corona charged aerosol detector]. [PDF]
Se PuLi X +8 more
europepmc +1 more source
, 1986 惰性气体脱氢、氧净化剂是由钯、氧化铜担载在二氧化钛上而制成的.利用本净化剂可在100-180℃条件下,使惰性气体流中成计量比的H2和O2化合除去,同时将余量H2或O2收除去 ...
张俊香 +6 more
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[Determination of 40 carbonyl compounds in ambient air by high performance liquid chromatography-triple quadrupole mass spectrometry]. [PDF]
Se PuLi GH +8 more
europepmc +1 more source
, 1996 一种棉籽油油脚脱色剂是采用双氧水，在棉籽油油脚进行皂化、碱炼制皂基加工中，使用这种脱色剂可只进行二次碱炼反应，并在第二次碱炼反应时加入０．０２～０．３％的脱色剂。应用这种脱色剂，不但可简化现行加工流程，并可利用棉油脚作制造中高档洗涤剂（肥皂或皂粉）的原料 ...
宋永哲, 韩秀文, 纪涛
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[Determination of eight ultraviolet absorbers in surface water and wastewater by ultra performance liquid chromatography-triple quadrupole mass spectrometry]. [PDF]
Se PuSun HJ +5 more
europepmc +1 more source
, 2015 以脱铝赤泥和脱铝粉煤灰为原料,采用水热法制备硬硅钙石,考察原料配比、液固比及反应时间对硬硅钙石生成及形貌的影响。结果表明:在220℃、钙硅比为1.0时,脱铝粉煤灰掺入量的增加、液固比的提高和反应时间的延长均促进了硬硅钙石的生成。最佳反应条件为:脱铝粉煤灰加入量大于总质量40%、液固比35 m L/g、反应时间9 h。在该条件下获得了由直径为25~50 nm,长径比大于20的硬硅钙石单晶晶须缠绕而成的球形粒子。通过扫描电镜(SEM)、透射电镜(TEM)和背散射电子图像(BSE)分析晶须生长 ...
吕松青 +4 more
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