色氨基酸

A reversed phase high performance liquid chromatographic method for simultaneous determination of 18 amino acids is described.

测定氨基酸的方法很多[1，2 ] ，仅用于反相高效液相色谱检测氨基酸的柱前衍生试剂就有近 10种。

According to the features of amino acids in tea, those tea pretreatment methods mainly including extraction and lixiviation, and those popular determining methods mainly including automatic amino acid analyzer, high performance liquid chromatography, capillary electrophoresis, etc.

摘 要：在参阅1907年以来国内外关于茶叶氨基酸分析的180余篇文献的基础上，对茶叶中氨基酸的分析方法做了较系统的介绍，并针对茶叶氨基酸的特点，就茶叶样品的前处理方法(主要包括萃取法和浸提法)及目前常用的分析方法(主要包括氨基酸自动分析仪法、高效液相色谱法、毛细管电泳法等)进行了评述。

According to the features of amino acids in tea,those tea pretreatment methods mainly including extraction and lixiviation,and those popular determining methods mainly including automatic amino acid analyzer,high performance liquid chromatography,capillary electrophoresis,etc.were described too.

在参阅1907年以来国内外关于茶叶氨基酸分析的180余篇文献的基础上，对茶叶中氨基酸的分析方法做了较系统的介绍，并针对茶叶氨基酸的特点，就茶叶样品的前处理方法(主要包括萃取法和浸提法)及目前常用的分析方法(主要包括氨基酸自动分析仪法、高效液相色谱法、毛细管电泳法等)进行了评述。

The experiment analyses the esterase volume of Catecholamines and Acetylcholine in blood,nervous tissue and spleen tissue by way of Chromatography With Electrochemical Detection,detects the volume of aminophenol nervoustransmmiter in nervous tissue by way of automatic amino acid analyzer,and reflects the immunity function of spleen by using the spleen index,the cabability of T lymphopoiesis of spleen,the sub-T lymphocyte of blood.

应用高压液相色谱—电化学检测法和生化比色法分别分析血液、神经组织和脾脏组织中的儿茶酚胺和乙酰胆碱酯酶含量，应用氨基酸自动分析仪检测神经组织中的氨基酸类神经递质含量，以脾脏系数、脾脏T淋巴细胞增殖能力、血液T淋巴细胞亚型等指标反映脾脏的免疫机能。

Its amino acid sequence was identified as Gly-Tyr by using Mass Spectrography.

采用高效凝胶过滤色谱测定P2的分子量在245左右；氨基酸组成分析结果表明：P2主要含甘氨酸和酪氨酸；质谱测定P2的分子量是238.3；最终鉴定P2中ACE抑制活性丝素肽的氨基酸序列为Gly-Tyr。

After extraction by ethanol and purification by cationic ion-exchange column, a method of using reversed-phase high-performance liquid chromatography and precolumn derivatization with o-phthalaldehyde and 9-fiuorenylmethylchloroformate is employed for determination of free amino acids in tobacco . This method assures that amino acids with amino and imino groups can be determined simultaneously. The results of duplication experiment and recovery experiment are acceptable.

本试验用乙醇提取烟叶中的游离氨基酸，并用阳离子交换树脂纯化，再用邻苯二甲醛、氯甲酸芴甲酯联合柱前衍生、反相高效液相色谱分析测定了烟叶中的游离氨基酸，该方法能同时测定烟叶中的带氨基和亚氨基基团的氨基酸，并且分析方法的重现性和回收率均令人满意。

Methods Isothiocyanic acid base phenyl ester pre-column derivatization was used for the determination of three kinds of amino acids contents in the glu-ala-glycine chewable lablet by high performance liquid chromatography,the chromatography condition was inertsil ODS-3V4.6×250mm,5μm

方法谷丙甘氨酸咀嚼片中3种氨基酸含量测定采用异硫氰酸基苯酯柱前衍生化高效液相色谱法。色谱条件：色谱柱为Inertsil ODS-3V4.6mm×250mm，5μm

With the help of RP-HPLC, the hydrolyzes of corn gluten meal were found to be rich in Pro and basic amino acid, such as Phe and Leu, which can be used as food additives to supply basic amino acid and to lower blood pressure.

利用反相高效液相色谱法对玉米黄粉蛋白酶解产物的氨基酸组成进行了测定，发现酶解产物中含有大量的Phe(Phenylalanine，苯丙氨酸)，Leu(Leucine，亮氨酸)等必需氨基酸和Pro(Proline，脯氨酸)，他们可以添加到食品中来补充必需的氨基酸和降低高血压患者的血压，对综合开发利用这一丰富的农副产品具有重要的意义。

Preparation of compound amino acids from dehulled double - low rapeseed meal hydrolysed by sul-furic acid was studied . We attempted to produce amino acids by a two - step neutralization.

为得到高质量的菜籽复合氨基酸，以脱皮菜籽粕为原料，研究了硫酸水解制备复合氨基酸的新工艺一二次中和法，解决了氨基酸脱色和副产品植酸的利用问题。

Ion-exchange equilibria of three neutral amino acids on 732 strong-acid resin were studied and an equilibrium model was developed.

&氨基酸离子交换色谱的工程原理&是面向氨基酸生产下游工艺离子交换分离精制技术提出的研究课题，主要包括两个领域的理论和实验研究：离子交换平衡和制备色谱动态特性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。