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To investigate the pollution levels, occurrence and distribution of estrogens, six estrogens in the surface sediments of Wenyuhe River were analyzed quantitatively by GC/MS following ultrasonicated extraction including diethylstilbestrol, estrone(E1),β-estradiol(E2), 17α-ethynylestradiol(EE2), estriol(E3), and β-estradiol 17-valerate. Six estrogen concentrations ranged from 0.39-36.6ng/g and the mean concentration was 10.2ng/g.

为了调查温榆河沉积物中雌激素物质的污染状况，采用超声萃取、GC/MS法研究了6种常用雌激素（包括己烯雌酚DES、雌酮E1、雌二醇E2、乙炔基雌二醇EE2、雌三醇E3和戊酸雌二醇EV）在北京温榆河上游及干流表层沉积物中的含量水平，并对其分布及来源情况进行了分析。

Firstly, the petroleum ether extract was examined by GC-MS. The result shows that there are over twenty ingredients in it, almost of which are hydrocarbon while a few are ketone, hydroxybenzene, and amine etc.

首先对石油醚的提取物进行了GC-MS检测，检测结果发现其中有二十多种成分，其中多数为烃类，也还含有少量的酮、酚、胺等化合物。

It was found that there were 36 distinct differences in 184 protein spots. In-gel digestion and liquid chromatography mass spectrometry C LC-MS were made to analyze the protein SSP2801, and Mascot software was applied to identify the protein. The results showed the protein was large subunit of Rubisco, and its content in yellow mutant decreased distinctly, only about 26% of the comparison. Maybe it has relation to etiolation.

切耿其中差异最为明显的SSP2801位点蛋白进行胶内酶切、LC-MS分析，并应用Mascot软件检索鉴定，结果表明该蛋白组分为RUBP羧化酶的大亚基，其在突变体中含量明显减少，仅为对照的26％，表明突变体叶色黄化与RUBP羧化酶大亚基含量减少也有关系。

Result: The inductivity of leaves was the highest about 87.5%, followed with the stem section and leafstalk; The inductivity of nutrient medium such as MS, B5 callus was higher than the ones like H, SH and the White callus amended one; It was found that low-grade Phvalue benefits the growth of callus. The experiment result showed that different pH showed little difference in quality. The best condition of culture was 25 ℃in temperature. Conclusion: The best culture condition for callus was the leaves as explantation.

结果：叶片的诱导率最高，为87.5%；茎段次之，叶柄较差；培养基MS，B5愈伤组织诱导率较高，达到了80%以上，高于培养基H，SH和改良White的愈伤组织诱导率；偏低的pH对愈伤组织生长有利，出愈率高，但从愈伤组织生长质量方面看，不同pH差异不明显；愈伤组织诱导最适温度为25 ℃。

So we use the mature exploiture technologies to empolder a simple and applied LC/MS automatic analysis software.

为此，我们运用成熟的开发技术，在较低的成本下，开发了简单实用的LC/MS 联用自动分析系统软件。

The GC-MS technology was applied to analyze chemical c o mpositiont of fatty oil from the root of chinesis fan palm.

采用 GC- MS联用技术首次分析了蒲葵根中脂肪油的组成，共分离出 36个峰，并鉴定出其中的 2 3种化合物。

GC/MS analysis on the leaf oil indicated that the main components with a relative content of ≥3% were alloocimene (43.22%),α-pinene (13.63%),γ-terpinene (5.49%),-3, 7-dimethyl-, 2, 6-octadien-1-ol (3.58%),β-fenchyl alcohol (4.58%), and 2-amino-3, 5-dicyano-6-(4-methoxyphenoxy)-pyridine (3.67%).

用GC/MS联用方法，对巨尾桉挥发油进行鉴定，相对百分含量在3%以上的化合物有：α-蒎烯(13.63%)、别罗勒烯(43.22%)、γ-萜品烯(5.49%)、3，7-二甲基－2，6-辛二烯醇(3.58%)、β-小茴香醇(4.58%)和2-氨基－3，5-二氰基-6-（4-甲氧基苯氧基）－吡啶(3.67%)。

Methods: Distilled essential oil of fennel seeds by simultaneous distillation and extraction, then analysed with GC/MS.

使用同时蒸馏萃取法提取茴香种子精油，进行GC/MS分析。

After the ferromolybdenum was dissolved completely in nitric acid at low temperature,adding internal standard elements of ~(45)Sc,by use of internal elements calibrated method,the content of Sb,Cu,Sn,Si and P in ferromolybdenum is determined directly by ICP-MS.

将钼铁样品用HNO3低温溶解完全后，加入内标元素45Sc，采用内标法，用ICP-MS仪进行测定。文中讨论了基体钼对测定的影响。本方法的加标回收率为98.0%~102.5%，相对标准偏差RSD为1.6%~3.5%。本方法具有简便、快速、准确等特点，可用于钼铁样品中微量杂质元素的分析

Firstly, the fly ash is separated into three parts according to its mineralogical composition, they are ferruginous spheres, mullite-corundum and glass phases. Secondly, the contents of these elements of the original fly ash, the ferruginous spheres and the mullite-corundum are determined by chemical analysis and ICP-MS, respectively, and thus the element contents in the glass phase can be obtained by calculation.

首先根据高铝粉煤灰的物相组成特点采用新的分离方法将之分离为三个相：铁质微珠、莫来石－刚玉相以及玻璃相；然后分别用化学分析和ICP-MS测试主微量元素在高铝粉煤灰、铁质微珠以及莫来石－刚玉相中的含量，并结合相关数据计算出这些元素在玻璃相中的含量。

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。