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In addition, isozymes changes of SOD and POD were observed in groups treated with laser after seeds being soaked for 24 h and when embryonic buds emerged, while no change was observed in the group treated at the one-leaf stage.

SOD、POD同工酶的酶在浸种24小时和胚芽露头期经激光处理后改变,在一叶期处理后没有改变;CAT同工酶没有变化;在一叶期处理的三种同工酶都没有改变。

The experiment of potted was carried out in the green house and biao-ben orchard of Shandong Agricultural University from 2002.9~2003.6. Aroma components of fruit were extracted by solvent soluble and analyzed by Gas Chromatogram/ Mass Spectrum , to study on the effect on strawberry aroma component under various nitrogen levels. At the same time , glucose and fructose in fruit were analyzed by High Performance Liquid Chromatography, and the correlation between glucose、 fructose and the precursor of strawberry characteristic aroma component was studied according the former article.

本试验于2002年9月~2003年6月分别在山东农业大学日光温室和果树标本园中进行,采用盆栽的方式,用溶剂萃取法提取香气成分,用气相色-质联用仪进行定性、定量分析,研究了不同氮素水平对草莓果实芳香成分的影响,同时采用高效液相色法测定果实葡萄糖、果糖含量,对果实中葡萄糖、果糖与草莓特征香气成分前体之间的关系进行了初步探讨。

The paper mainly researched the peak to average technology of the MC-CDMA system and realized the baseband design. It proposed the optimal condition of the spectrum code in the MC-CDMA system, and considered the peak value factor of spectrum code, the correlation characteristic, and the spectrum correlation characteristic.

论文主要研究MC-CDMA系统的峰平比技术及实现了基带信号处理,提出了在MC-CDMA系统中采用扩码的优选条件,即同时考虑扩码的峰值因子、相关特性、和相关特性。

Objective:To establish the method for detecting the reserpine in biomaterial by HPLC and HPLC/MS.

目的:建立生物检材中利血平的高效液相色/质和高效液相色的检测。

The fatty acids composition in the Pine seed oil were determined by means of gas chromatography and gas chromatography -mass spectrometry. The unsaturated fatty acids amounted to 90% of total fatty acids, in which 62% is essential to human health.

用气相色及气相色-质连用技术分析了红松仁油的脂肪酸组成,结果表明:不饱和脂肪酸的相对含量为90%,其中人体必需脂肪酸占62%左右。

Because of good selectivity to anions in solution of calix[4]pyrroles, the synthesis of calix[4]pyrrole-bonded stationary phase will also provide new means for separation to anions and neutral substances in chromatography and promote the development in supramolecular chemistry.

基于杯[4]吡咯化合物在溶液中对阴离子的选择性识别性能,利用其对色固定相进行改性以合成针对阴离子和中性小分子化合物的色柱将为色分离技术提供新的手段,推动超分子化学在分析化学中的应用并促进杯吡咯化学的发展。

In our research, through derivatization of stable calix[4]pyrroles, active substituting units were jointed on the calixpyrrolic skelecton. After acylamide and free radical transfer reaction, the preparation of new calix[4]pyrrole-bonded stationary phases were fulfilled. the separation abilities of them to inorganic and organic anions and medicines were exploited and new analytical methods were established. The separation mechanisms were discussed. At the same time, through using calix[4]pyrroles as additives in CZE to influence the electrophoresis of inorganic anions, the recognition mechanisms and influencing factors in supramolecular chemistry were also studied.

本项目以新型杯吡咯大环化合物分子识别化学研究为基础,设计合成了含活泼取代基的官能化杯[4]吡咯化合物,通过酰胺化反应和原位自由基链转移反应制备了新型的杯[4]吡咯色固定相,系统研究了具有阴离子识别功能的杯[4]吡咯大环化合物作为离子色的分离介质对无机、有机离子型化合物和药物分子的色分离性能,建立了新的分析方法,对分离机理进行了探索和验证;同时将杯[4]吡咯化合物用作毛细管电泳流动相添加剂,利用其对无机阴离子电泳行为的影响探讨超分子化学中分子识别的机理和影响因素。

This model not only provides a new method to calculate~(31)P chemical shifts of phosphines,but also establishes the rela...

所建模型不仅在一定程度上阐明了膦类化合物31P NMR化学位移与其分子结构信息之间的关系,同时也提供了一种从理论上计算膦类化合物31P NMR化学位移的新方法,并对深入了解膦类化合物结构与性能的关系及解析、预测其31P NMR提供了一定的理论依据。

The orderings of trees with respect to Hosoya Index;2. Based on the former research of the order of trees and trees with perfect matching by professors Tian Feng and Yuan Xiying.

在田丰教授等对树的拉普拉斯半径排序以及袁西英等对完美匹配树的拉普拉斯半径排序研究的基础上,对完美匹配树的半径进行了进一步的研究。

The digital visible spectrum of alloy was studied with grating spectroscope and prism spectroscope based on the computer system.

使用光栅看镜和棱镜看镜对合金中铌元素可见光进行看分析研究,摄制了彩色图

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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。