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高效液相色谱法测定肉桂醛生物转化体系中10种苯基香料 被引量:2
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作者 黄秋容 粟桂娇 +3 位作者 梁敏 王一凡 于唱 马丽 《食品研究与开发》 CAS 北大核心 2020年第2期128-134,共7页
建立一种同时测定微生物转化肉桂醛体系中10种天然苯基香精香料(苯甲醇、苯甲醛、苯甲酸、苯乙醇、苯乙酮、肉桂醇、肉桂醛、肉桂酸、3-苯丙醇和3-苯丙醛)的高效液相色谱分析方法。试样经无水乙醇提取,离心,过滤后进样。色谱分析采用Sun... 建立一种同时测定微生物转化肉桂醛体系中10种天然苯基香精香料(苯甲醇、苯甲醛、苯甲酸、苯乙醇、苯乙酮、肉桂醇、肉桂醛、肉桂酸、3-苯丙醇和3-苯丙醛)的高效液相色谱分析方法。试样经无水乙醇提取,离心,过滤后进样。色谱分析采用SunFireTMC18色谱柱(250 mm×4.6 mm,5μm),以甲醇∶乙腈∶水∶冰醋酸=28.4∶18∶53.6∶0.04(体积比)为流动相,流速1.0 mL/min,紫外检测器检测。10种待测物在2.00 mg/L^318.60 mg/L范围内线性关系良好(0.9987≤R2≤0.9996),方法检出限(method detection limit,LOD,S/N=3)为0.36 mg/L^1.16 mg/L,在低、中、高3个加标水平下的平均回收率为92.13%~102.90%,RSD为0.62%~4.01%。该方法可用于微生物转化肉桂醛合成天然苯基香料的生物反应体系的成分分析,也可用于生物转化肉桂醛合成天然香料的菌种选育工作中。 展开更多
关键词 高效液相色谱法 生物转化 肉桂醛 苯基香料 筛菌
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Solid-Liquid Equilibria of Musk Ketone, Musk Xylene and 1,3-Dimethyl-2,4-Dinitro-5-Tert-Butyl Benzene 被引量:1
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作者 曲红梅 白鹏 +1 位作者 杨志才 余国琮 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2004年第2期294-296,共3页
The solid-liquid equilibria of musk ketone + musk xylene, musk xylene +l,3-dimethyl-2,4-dinitro-5-tert-butyl benzene are measured by differential scanning calorimeter (DSC), these systems are proved to be simple eutec... The solid-liquid equilibria of musk ketone + musk xylene, musk xylene +l,3-dimethyl-2,4-dinitro-5-tert-butyl benzene are measured by differential scanning calorimeter (DSC), these systems are proved to be simple eutectics. Moreover the melting points and the fusion enthalpies of musk ketone, musk xylene and 1,3-dimethyl-2,4-dinitro-5-tert-butyl benzene are also measured by the DSC. These solid-liquid equilibrium data and the heats of fusion are reported for the first time. Then UNIFAC model is used to correlate the sofid-liquid equilibrium data. It is shown that the solid-liquid equilibria of musk systems can be predicted by the UNIFAC model. 展开更多
关键词 solid-liquid equilibria differential scanning calorimeter musk ketone musk xylene 1 3-dimethy1-2 4-dinitro-5-tert-butyl benzene
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New D-π-A dyes for efficient dye-sensitized solar cells 被引量:7
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作者 QU SanYin HUA JianLi TIAN He 《Science China Chemistry》 SCIE EI CAS 2012年第5期677-697,共21页
Functional organic dyes have promising prospect in dye-sensitized solar cells as a crucial element, of which sensitizers based on donor-π-acceptor are the most important dyes. On the basis of the structures of the ar... Functional organic dyes have promising prospect in dye-sensitized solar cells as a crucial element, of which sensitizers based on donor-π-acceptor are the most important dyes. On the basis of the structures of the aromatic amine donors such as triphenylamine and indoline, this paper reviews the photoelectric conversion properties of organic sensitizers since 2008, and highlights research work in our laboratory in this area. 展开更多
关键词 dye-sensitized solar cells functional dyes triphenylamine INDOLINE
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