谱色

FIG. 2. Mass Spectra Of g a s chromatographic f r a c t i o n s identified as compounds given.

国际体联。 2。质谱色谱气体组分光谱确定鉴于作为化合物。

Able to refract light without spectral color separation.

能折射光而没有谱色分离的。

Able to refract without spectral color separation .

能折射而没有谱色分离的。

A new method using gel permeation chromatographic cleanup followed by high performance liquid chromatography-tandem mass spectrometry has been established for quantitative determination of Maleic hydrazide,Prowl and butralin residues in tobacco.

建立了用凝胶渗透色谱净化-液相色谱-串联质谱分析烟草中3种抑芽剂残留的方法。卷烟中的待测抑芽剂组分用V∶V=1∶1超声提取后通过凝胶渗透色谱净化；凝胶色谱柱为Biobeads S-X3玻璃柱(50 g，400 mm×25 mm)，流动相为V∶V=1∶1溶液，流速5 mL/min；收集第10~25 min流出的液体用液相色谱色谱-三重四极杆串联质谱仪测定。

The preliminary chromatogram data were resolved with Mallat algorithm of wavelet analysis theory. This method that resetting the high frequency signals, reconstructing low frequency and then correcting the background signals in the original signal was to avoid the data skewness with negative digital points after background correction and achieve the baseline correction; according to the study and analysis of simulated data including curve background and real data of the needle-plate and free metal partials insulation defects, the method is effective; the best wavelet function of the background correction is Db5 and the best resolution times of the background correction is 8 for chromatogram data of SF_6 decomposition products, based on the calculation with different wavelet functions and resolution times.

在初步获取的气相色谱数据基础上，运用小波分析技术中的Mallat算法对色谱数据进行小波分解，采取将高频信号置零，重构低频背景信号，再用原始信号扣除背景信号的方法，并对背景信号进行纵向平移以避免扣除后出现负数据点造成色谱峰失真的题目及达到色谱图基线校正的目的；通过对含曲线背景信号的模拟色谱数据和针-板、自由金属微粒缺陷下的真实数据的计算研究表明，该方法的应用是有效的；并通过对不用小波函数和不同分解次数的背景扣除计算，确定了SF_6气体放电分解组分色谱背景扣除所选用的最佳小波函数为Db5小波和最佳分解次数为8次。

The chromatographic method usually used are:paper chromatography,thin layer chromatography,liquid chromatography,gas chromatography.

常用的色谱方法有：纸色谱、薄层色谱、液相色谱、气相色谱。

A radiation thermometry which is named "Primary Spectrum Pyrometry" has been established in previous theoretical study.

本实验室经过前期理论研究，发展了一套谱色测温法。

The pyrolysis characteristics and sulfur release characteristics during coal pyrolysis of three different coals, which include high volatile, were studied by TG-GC-MS(Thermal gravimetry-Gas Chromatography-Mass spectrum), tube furnace of pyrolysis reactor and intelligent fixup sulfur equipment.

本文应用热重—质谱—色谱联用系统、管式炉热解反应器和快速智能定硫仪，研究三种高挥发分煤种的热解特性和热解硫析出特性，对热解硫析出的两种主要产物(H_2S和COS)进行了监测分析，得到硫的赋存形态、粒径大小以及矿物质对各种形态含硫气体析出的影响规律。

Compounds were identified by means of physic-chemical property and spectral data including three new compounds: platyphyllin A (1), neochlorgeniclatone (2),(2E,6Z)-2,6-dimethyl-8-O-β-D-glucosyl-2,6-octadienoic acid (3). The known compounds included cyclic diarylheptanoids, phenylic acid, ect.

从白桦叶的水提取物中，利用各种色谱分离手段(硅胶柱色谱、聚酰胺柱色谱、凝胶柱色谱及制备薄层色谱等)，分离得到28个化合物，通过理化性质及各种波谱数据(NMR，MS，IR，etc)鉴定了23个化合物的结构，其中新化合物三个：platyphyllin A(1)，新绿原酸内酯(neochlorgeniclatone，2)，(2E，6Z)-2，6-二甲基-8-O--2，6-辛二烯酸(2E，6Z-2，6-dimethyl-8-O-β-D-glucosyl-2，6-octadienoic acid，3。

A relational expression between column plate number and peak plate number was deduced.

在计算色谱柱塔板数时，应区分色谱柱塔板数和色谱峰塔板数(是由实际色谱峰形得到的，在色谱过程中实际发生的)，因色谱柱塔板数与色谱峰塔板数是不同的概念。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。