• It was identified by IR and mass spectra.

    红外光谱确证了的结构。

    youdao

  • The EI mass spectra of 19 new substituted thiourea compounds were studied.

    研究了两类19取代类化合物分辨ei

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  • After mass spectra identification, 10 protein spots were confirmed at last.

    鉴定10个蛋白得到确认。

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  • Mass spectra of thirteen epimers of podophyllotoxin and its derivatives have been examined.

    本文考察了十三个鬼及其衍生物立体异构体的性能。

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  • The fast atom bombardment (FAB) mass spectra of free bile acids and their succinyl derivatives are described.

    本文研究游离胆汁酸及其丁二酸衍生物快速原子轰击FAB

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  • The hydrogen, helium, nitrogen and argon beams thus produced were analyzed and their mass spectra were measured.

    并对等气体产生离子束进行了磁分析,测定了离子束的

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  • Classification of mass spectra of toxic compounds is based on the numerical features derived from spectral data.

    有毒化合物质分类是以光谱数据数值特性为基础

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  • Therefore, mass spectra gained by these three ionization modes are satisfactorily used to analyse liquid crystals.

    种质并用,能有效地测试液晶化合物。

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  • The reaction conditions were studied and the structure was characterized by HNMR and mass spectra. The yield was 80%.

    介绍了读物质的分离纯化方法,并用HNMR对其进行结构表征

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  • The MS fragmentation law of color couplers have been established by analyzing the mass spectra of such compounds and a…

    通过图解析找出了成色化合物碎裂规律;归纳出了利用质谱分析成色剂结构的方法。

    youdao

  • The electron impact and field desorption mass spectra of 10 2,4-diamino-6-substituted quinazoline sulfonamides were investigated.

    研究102,4-二氨基-6-取代酰胺喹唑啉类药物的电子电离解吸

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  • The mass spectra were interpreted mainly by comparing the fragments of six compounds, and their fragmentation patterns were proposed.

    探讨化合物特征离子裂解途径,提供莽草酸的质谱学基础。

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  • Pyrolyisis products were analyzed with the coupled techniques of pyrolysis chromatography-IR and pyrolysis chromatography-mass spectra.

    同时对水水解增塑作用进行了定量分析。

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  • In this paper, formulas for relationship among oxygen mass spectra peak heights and for calculating oxygen isotope abundance are drived.

    本文推导之间关系计算同位素丰度的公式。

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  • The isotopic effect suggests another important property, ia addition to the magic numbers, of mass spectra of the sputtered ion cluster.

    是溅射离子中继”结构另一个重要性质

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  • A method is discussed for identifying the nitrogen heterocyclics by using GC retention data, mass spectra and MS library search results.

    探索了色谱保留信息相结合的定性分析方法

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  • Mass spectra of proteins such as ribonuclease A and lysozyme were obtained with substantially enhanced abundant peaks of low charge states.

    采用核糖核酸A、菌酶样品商品化的线性离子质谱仪对该电离源进行了表征

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  • The features of Field Desorption Mass Spectra and its application in the analysis of thermolabile substances and nonvolatile compounds are described.

    本文简述解吸特点以及在热不稳定化合物难挥发化合物分析中的应用

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  • Their chemical structures were confirmed by means of elemental analysis, infared spectra, proton nuclear magnetic resonance spectra and mass spectra.

    利用元素分析红外光谱磁共振激光解析电离飞行时间确证了组成和结构

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  • A computer program DCP-AIMS-EP on artificial intelligence (AI) interpretation of mass Spectra of environmental pollution (EP) compounds is described.

    本文叙述环境污染物质谱人工智能解释计算机程序DCP - AIMS -EP”。

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  • Mass spectra (MS) of cholesterol esters and halides were obtained by means of Electron Impact (EI), Field Desorption (FD) and Chemical Ionization (CI).

    研究了甾醇酯类甾醇卤代物的电子轰击电离(EI)、解吸电离(FD)、化学电离(CI)的谱。

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  • The MS fragmentation law of color couplers have been established by analyzing the mass spectra of such compounds and a method for analyzing the structures of co…

    通过谱图解析找出了成色化合物碎裂规律;归纳出了利用质谱分析成色剂结构的方法

    youdao

  • A dynamic method is used to describe the fragmentation rules, and the program can predict mass spectra automatically for compounds of various kinds of structures.

    程序采用动态描述方法存储裂解规则自动进行各种结构类型化合物预测

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  • Datamining in Mass databases (chapter2) : Aim of this study is to predict the presence or absence of the certain substructure by learning from Mass spectra library.

    数据发掘(第二章):部分主要目的通过对质谱数据库的机器学习,来达到对未知化合物的某些结构子结构预测

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  • Using moderate resolution capabilities of a desk time-of-flight (TOF) instrument, the fragmentation regularity from electron impact mass spectra of vitexin was studied.

    利用台式飞行时间分辨本领,研究荆素电子轰击质谱的裂解规律,对裂解途径进行了完全的指认。

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  • A study of doubly charged ion mass spectra (2E spectra), the substituents effect and the target gas pressure deppendence of biphenyl derivitives was presented in this work.

    本文研究联苯取代电荷离子2E及其取代效应压力影响。

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  • Their thin-layer chromatogram, fluorescent spectra and fast atom bombardment mass spectra were examined to verify the completeness of the reaction and also to assign the structures.

    硅胶薄层色谱荧光光谱原子轰击证实反应物完全性及其结构。

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  • The tungsten tip was treated by heating before and after single walled carbon nanotubes (SWCNTs) were assembled on it, and the mass spectra of the residual gas were recorded and analyzed.

    分别W针尖上未组装组装纳米进行热处理,然后对所得气质图进行记录和分析。

    youdao

  • The tungsten tip was treated by heating before and after single walled carbon nanotubes (SWCNTs) were assembled on it, and the mass spectra of the residual gas were recorded and analyzed.

    分别W针尖上未组装组装纳米进行热处理,然后对所得气质图进行记录和分析。

    youdao

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