查询词典 MS

It was found by GC-MS that the demethylation of TMBQ·or TMHQ could be one of the main side-reactions that influenced the quality of TMHQ.

通过GC-MS分析发现，TMBQ或TMHQ脱去一个甲基的反应可能是影响TMHQ产品质量的一个主要副反应。

The diaminobenzidine method was used to decide the concentration of diacetyl in fermented milk cultured in 25 or 30 ℃ for 4, 8, 12, 24, 36 and 48 hours respectively. GC-MS method was used to assess the identification and contents of volatile flavor compounds.

采用邻苯二胺法，分别测定25，30℃培养4，8，12，24，36和48 h发酵乳中双乙酰的含量，用GC-MS方法测定了发酵乳中挥发性风味物质的组成。

The effects of fermentation temperature and time,the amounts of water,pH and freshness of garlic on the contents of diallyl trisulfide and diallyl disulfide in garlic were experimentally investigated by GC/MS.

用GC/MS法对大蒜油提取前大蒜发酵的温度、时间、加水量、pH及大蒜新鲜度对大蒜新素和大蒜辣素的影响进行了实验研究。

High performance liquid chromatography-photodiode array detection-elctrospray ionization mass spectrometry (HPLC-PAD-ESI-MS) method was used to determine secoisolariciresinol diglucoside qualitatively and quantitatively. Precision, stability, limits of quantification, SDG recovery and sample preparation method were studied.

采用高效液相色谱－二极管阵列检测－电喷雾质谱(HPIC-PAA-ESI-MS)法对开环异落叶松树脂酚二葡萄糖苷进行定性和定量检测，研究方法的精密度、稳定性、定量检测限及加样回收率，并考察样品制备方法对定量检测结果的影响。

GC-MS analysis indicated that the major degradation intermediate products were hydroxy, dihydroxy and carboxylic derivatives of DMP and DEP.

DMP和DEP经过Fenton/UV氧化降解，通过乙醚萃取水相中有机化合物，再通过GC-MS分析，检测出了许多中间产物。

Two oleanane type triterpenes were isolated from the crude drug Lu Lu Tong , the fruits of Liquidambar formosana and their structures were elucidated as 2α,3β dihydroxy 23 norolean 4(24), 12(13) dien 28 oic acid(1), 2α,3β,23 trihydroxyolean 12(13) en 28 oic acid(2), based on 13 C NMR, DEPT, 1H NMR, 1H 1H COSY, 13 C 1H COSY, IR, MS and elemental analysis.

从生药路路通分离得到2个齐墩果烷骨架的五环三萜类化合物。通过13CNMR，DEPT，1HNMR，2D1H－13CCOSY，2D1H－1HCOSY，IR，MS和元素分析阐明了它们的结构。（1）为2α，3β－二羟基－23－去甲－齐墩果－4（24），12（13）－二烯－28－羧酸，（2）为2α，3β，23－三羟基齐墩果－12（13）－烯－28－羧酸，（1）未见文献报道，（2）是首次从这一植物中分离得

By dilatometric change referencing microscopic test and hardness measurement, the critical point at Ac1, Ac3 and Ms of 27CrMo27S steel was determined in Gleeble-3800 thermal mechanical simulator, By measuring the different expanding curves of CCT in different cooling rate, CCT diagram was obtained.

利用膨胀法结合金相-硬度法，在Gleeble-3800热模拟机上测定了27CrMo27S钢的临界点Ac1、Ac3以及Ms；测定了该钢在不同冷却速度下连续冷却时的膨胀曲线，获得了连续冷却转变曲线；研究了冷却速度对该钢组织及硬度的影响。

Zircon LA-ICP-MS U-Pb dating gave ages of 301±1 Ma and 298±2 Ma for the dioritic enclaves and their host granite, respectively, indicating their Early Permian emplacement.

锆石LA-ICP-MS U-Pb年龄显示闪长质包体与寄主花岗岩在形成时间上非常接近（分别为301±1Ma和298±2 Ma），表明两者均形成于早二叠世。

In this thesis, standard fingerprint of daphne diterpene esters from the root extract was first established by HPLC-UV, which can be used for D. genkwa identification and quality control. The major peaks in the standard fingerprint were identified by LC-MS.Quantitative analysis methods of yuanhuacine and yuanhuadine were established herein.

本文建立了芫花根中瑞香烷型二萜原酸酯类组分HPLC-UV标准指纹图谱，对主要色谱峰用LC-MS进行了归属，并对其中主要成分建立了定量分析方法，为不同产地、采收季节和人工栽培等原料药材的质量控制提供了科学依据。

The difference of concordance between monozygotic and dizygotic twins suggested that the susceptibility of MS was affected by genetic factors.

单卵双生子与异卵双生子的患病一致性差异表明，遗传因素在MS发病中起一定作用。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。