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差示扫描量热法测定药物纯度 被引量:9
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作者 王蕾 王立身 《中国现代应用药学》 CAS CSCD 北大核心 2005年第6期498-500,共3页
目的研究用差示扫描量热(DSC)法测定药物纯度的可靠性及影响测定的因素。方法用DSC法测定吲哚美辛等7种不同类别的药物纯度,并与药典规定方法结果进行对照。结果DSC法测定药物纯度的准确性好;试样的用量、纯度、升温速度对测定结果产生... 目的研究用差示扫描量热(DSC)法测定药物纯度的可靠性及影响测定的因素。方法用DSC法测定吲哚美辛等7种不同类别的药物纯度,并与药典规定方法结果进行对照。结果DSC法测定药物纯度的准确性好;试样的用量、纯度、升温速度对测定结果产生影响。结论本法测定高纯度药物简便、结果准确。 展开更多
关键词 差示扫描量热法测定 药物 药纯度测定
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Determination of Thermal Properties of Cuts and Residue Streams Obtained in the Molecular Distillation Process 被引量:3
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作者 Ballestemos Hernaindez Juhe Jardini Andre +2 位作者 Wolf Maciel Ma Regina Maciel Filho Rubens Medina Lilian 《Journal of Chemistry and Chemical Engineering》 2011年第8期684-690,共7页
A real-time sensing of the molecular distillation process temperature by a FLUKE brand thermograph Ti50 IR FlexCam and thermography technique was realized. After completion of the molecular distillation, three propert... A real-time sensing of the molecular distillation process temperature by a FLUKE brand thermograph Ti50 IR FlexCam and thermography technique was realized. After completion of the molecular distillation, three properties of heat transport chain cuts and residues obtained in the process were estimated by Differential Scanning Calorimetry (DSC) (specific heat, enthalpy, thermal conductivity). These properties are of great importance for improving oil characterization and for future modeling and simulation of the molecular distillation process. The results show that through the method of Differential Scanning Calorimetry, profiles have been obtained from the variation of specific heat, enthalpy and thermal condutivity as a function of temperature for samples of cuts from the distillation (ASTM D-2892) and fractions of distillate and residue from the process of molecular distillation. 展开更多
关键词 Molecular distillation heavy oil heat transport specific heat ENTHALPY thermal conductivity differential scanning calorimetry.
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