racemization
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n.
外消旋作用；
英英释义
Racemization
In chemistry, racemization refers to the converting of an enantiomerically pure mixture (one where only one enantiomer is present) into a mixture where more than one of the enantiomers are present. If the racemization results in a mixture where the enantiomers are present in equal quantities, the resulting sample is described as racemic or a racemate.
以上来源于:Wikipedia
权威例句
Devil's staircase and racemization in antiferroelectric liquid crystalsType I collagen racemization and isomerization and the risk of fracture in postmenopausal women: the OFELY prospective study.
De-racemization of enantiomers versus de-epimerization of diastereomers--classification of dynamic kinetic asymmetric transformation...
Low-latitude glacial cooling in the Southern Hemisphere from amino-acid racemization in emu eggshells
Dynamic Kinetic Resolution of Primary Amines with a Recyclable Pd Nanocatalyst for Racemization
Aggrecan turnover in human articular cartilage: Use of aspartic acid racemization as a marker of molecular age
Aminocyclopentadienyl ruthenium complexes as racemization catalysts for dynamic kinetic resolution of secondary alcohols at ambient ...
Deamidation, isomerization, and racemization at asparaginyl and aspartyl residues in peptides. Succinimide-linked reactions that con...
Free-Radical Intermediates in Atom Transfer Radical Addition and Polymerization: Study of Racemization, Halogen Exchange, and Trap...
Chemistry and biosynthesis of the poly(gamma-D-glutamyl) capsule in Bacillus licheniformis. Activation, racemization, and polymeriza...
1. The mechanism of the racemization was discussed.
同时也论述了氨基酸消旋的反应机理。
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2. Racemization is found with optically active substrates.
发现旋光基质有外消旋作用。
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3. Racemization is found with optically active substrate substrates.
发现旋光基质有外消旋作用。
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4. The invention discloses a method for the racemization of sertraline isomer.
本发明公开了一种外消旋化舍曲林异构体的方法。
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5. Dynamic resolution technology combines the resolution with racemization in situ.
动态拆分技术是将拆分反应与现场消旋化反应相结合的技术。
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6. Until his group's new report, scientists hadn't compared racemization and C-14 analyses on the same teeth, Buchholz says.
截至他的研究小组出台新报告之前，科学家们未曾对比过同一颗牙齿的外消旋化以及碳14分析结果，布赫兹说道。
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7. The dependence of chain scission and racemization on temperature results from molecular motion, "cage effect" and steric hindrance during recombination.
分子量降低和消旋作用对温度的依赖性，是由于分子运动和笼罩效应以及重合的空间位阻效应所致。
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8. The rate constant of racemization of L-Pro increased with decreasing acidity of the carboxylic acid. However, the racemization of L-His was most rapid in acetic acid.
消旋速率因羧酸溶剂的不同而异：L-组氨酸在乙酸溶剂中消旋最快，而L-脯氨酸在正丁酸溶剂中最快。
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9. By the way, if you're curious about why racemization is so much less accurate a clock than C-14 for dating a tooth's age, part of the explanation has to do with temperature.
顺便说一下，如果你好奇为什么在判断牙齿年龄方面、外消旋化会比碳14定义的时钟精度差之甚多，那么部分原因与温度相关。
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10. However, when the researchers applied both techniques to teeth, they realized that the racemization offered an additional useful detail, a good gauge of an individual's age at death.
然而，当研究人员将两项技术一并运用于牙齿上，他们意识到外消旋化提供了一个额外的有用细节，能成为个体死亡年龄的良好衡量标准。
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11. By analyzing how much racemization of its aspartic acid occurred, scientists can determine how old the tooth's owner was at death - generally accurate to about 5.5 years, plus or minus 4.2 years.
通过分析其天冬氨酸发生了多少外消旋化，科学家可以确定牙齿主人在多大岁数死亡——通常精确到5年半左右，正负差4.2年。
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12. By analyzing how much racemization of its aspartic acid occurred, scientists can determine how old the tooth's owner was at death - generally accurate to about 5.5 years, plus or minus 4.2 years.
通过分析其天冬氨酸发生了多少外消旋化，科学家可以确定牙齿主人在多大岁数死亡——通常精确到5年半左右，正负差4.2年。
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racemization
