查询词典 derivative

Allantoin is one of the important urea derivative products.

尿囊素是一种重要的尿素衍生产品。

It wasn't until the mid-sixties that the true entheogenic compounds of Amanita muscaria were positively identified as ibotenic acid and muscimol, its decarboxylised derivative.

直到上月中旬， 60岁的真实entheogenic化合物鹅膏muscaria呈认定为鹅膏蕈酸和蝇，其衍生decarboxylised 。

Amaranth's derivative defaults had trivial systemic ripples, while those of Lehman and AIG created major shockwaves.

Amaranth衍生品违约所带来的系统性影响微不足道，而雷曼和美国国际集团的违约则造成了重大的冲击波。

In this paper, synthesizing bis-(tert-butyldimethylsiloxy) silicon porphyrin by derivative reagent, makes porphyrin readily amendable to GC-MS、 GC-IRMS ananlysis.

本文利用衍生化的方法合成双—硅卟啉，使其适合GC-MS、GC-IRMS测定。

Two: Synthesized a novel rhodamine derivative with a single amidogen, then analyzed and characterized the dye by 1H NMR and EI-MS.

二、以对硝基苯甲醛和八羟基久洛尼定为原料，合成了一种新型的罗丹明荧光染料，并通过核磁共振、质谱等手段对染料结构进行了表征。

Starting form chitosan,amidogen protecting,cross linking,etheration,amination,amidogen release and addition reaction with CS_2,and chitosan derivative containing dithiocarbamate group was firstly prepared.

本文在课题组前期关于淀粉改性重金属捕集剂研究工作的基础上，参考国内外的相关文献，建立了以壳聚糖为主要原料制备二硫代氨基甲酸改性壳聚糖重金属捕集剂的合成工艺。

A ratio spectra derivative spectrophotometry for simultaneous determination of quaternary mixture of aminopyrine, phenobarbital, caffeine and phenacetin was studied.

提出了可应用于四元混合体系同时测定的比光谱-导数分光光度法，阐述了该方法的基本原理，并将其应用于氨基比林、苯巴比妥、咖啡因和非那西丁四元混合体系中各组分的同时测定。

Here we show that a TH derivative, triiodothyroacetic acid, induces metamorphosis in the cephalochordate amphioxus.

科学家通过研究发现，甲状腺激素的衍生物，一种叫做TRIAC的物质，在头索动物文昌鱼中诱导了变态。

Three analysis methods were used in this study to analyze the content of amygdalin , and the effective components in bitter apricot kernel, namely, HPLC method, UV-Spectrophotometric method and Second-derivative spectra method.

苦杏仁的有效成分苦杏仁苷经提取、处理后，用HPLC法、紫外分光光度法、二阶导数光谱法测定其含量。

We show that a 1-D signal and its derivative at different scales can be represented by one analytic function defined on the unit disc in the complex plane.

我们证明一个一维信号及其微分在所有尺度下可以用复平面上的单位圆上的解析函数来表示。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。