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gas chromatographs
相关语句
  气相色谱
     Hydrogen isotopes, H_2, HD and D_2, are difficult to be separated and quantified with conventional gas chromatographs.
     针对氢同位素气体H2、HD与D2之间难以定量分析,本研究对常规气相色谱仪做了改进,使用固定相为改性氧化铝的双填充柱在液氮温度(77.4K)下分析H2、HD与D2的定量组成。
短句来源
     Methods The portable formaldehyde analyzer was used to measure the concentration of formaldehyde,and gas chromatographs(GC) was used to measure the concentration of benzene and toluene.
     方法采用甲醛分析仪,气相色谱仪进行测定。
短句来源
     Objective:To develop the methane-transformationdevice(integrated) in the on-column injection of gas chromatographs and optimize testing conditions of carbon monoxide.
     目的:研制用于柱头进样气相色谱仪一体化甲烷化器及对一氧化碳(CO)检测条件进行优化。
短句来源
     According to the home-made requirement of column switching systems in 23 industrial gas chromatographs in 300 000 Tons of olefin plant, based on the research work of the expert system on gas chromatography and movement laws of compounds of interest in columns, the suitable stationary phases were defined, and the column switching systems were designed by using combined cutting techniques which consist of backflushing, fore-flushing and heart cutting, and by controlling column lengths, flows, now directions and temperatures.
     根据某石化总厂生产过程控制23套在线气相色谱仪中柱切系统国产化的实际需要,在气相色谱专家系统研究的基础上,通过选择正确的柱系统,并采用基于反吹、前吹、中心切割等基本柱切方法为基础的组合式柱切技术,配以往长、流量、流动方向和柱温的调节,取得了圆满成功。
短句来源
     In this paper,the analysis of methanol,gasoline,buthanol and water in some chemical products is discussed Two gas chromatographs are involved in this method One is for the determination of water content,and the other for the determination of methanol,gasoline and buthanol The external standard method and the regression straight line equation are used for the former analysis This method is featured by simple operation,quick response,good separation and satisfactory results
     生产某些化工产品需要测定其回收溶剂甲醇、汽油、丁醇、水四元组份的含量,以便回收再利用时确保其工艺条件。 采用两台气相色谱仪来完成该项分析,其中水含量的测定采用专用色谱仪、利用外标法定量,并运用了回归直线方程求出水含量。
短句来源
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  “gas chromatographs”译为未确定词的双语例句
     Improvement and Applicaton of the Procedure Gas Chromatographs
     气相色谱仪流程的改进与应用
短句来源
     Preparation of testing columns used for gas chromatographs
     气相色谱仪调校用色谱柱的研制
短句来源
     Discuss on Gas Chromatographs of Benzene, Methy-benzene and Dimethy-benzene in Engine Paints Coating
     油漆涂装现场三苯气相色谱分析法的探讨
短句来源
     From the change of the concentration of the reactant and product CO2 detected by gas chromatographs, the reaction's order is confirmed as zero order.
     生成物CO_2及剩余反应物浓度随时间变化的实验结果表明,该种反应为零级反应。
短句来源
     Results by Gas Chromatographs tested that the contents of the major favor substances (ethylformate, ethylacetate, isoamyl acetate and ethyl hexanoate) in the Ya pears wine fermented by GYi and GY2 were higher than those by angel;
     气相色谱分析结果表明:两自选酵母所酿造的鸭梨酒所含主要酯类(甲酸乙酯、乙酸乙酯、乙酸异戊酯、己酸乙酯)的量均高于安琪酵母所酿造的鸭梨酒含酯量;
短句来源
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  相似匹配句对
     Improvement and Applicaton of the Procedure Gas Chromatographs
     气相色谱仪流程的改进与应用
短句来源
     Preparation of testing columns used for gas chromatographs
     气相色谱仪调校用色谱柱的研制
短句来源
     Gas Range
     燃气灶
短句来源
     Gas Bearings
     气轴承
短句来源
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  gas chromatographs
We have shown that in calibration of gas chromatographs designed for analysis of natural gas, we should use binary gas mixtures based on propane.
      
Metrological specifications are drawn up for the quality of natural gas and the level of standard, reference, and working gas chromatographs.
      
The relative errors of working gas chromatographs and calorimeters are compared as used for determining the heat of combustion of natural gas.
      
We consider a high-precision equipment complex for the certification and checking of the dispensers of gas analysis instruments, for example, those of gas chromatographs and Chromatographic analyzers.
      
Purity of substances used to calibrate gas chromatographs
      
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The structure and performance of the HS 900 headspace sampler were studied This instrument could be linked with any kinds of gas chromatographs Procedures of sampling,sample loading and vials rotating were able to be accomplished automatically by the programed controller The instrument had twelve vial positions Its temperature could be controlled from 45 to 155℃ Chemical compositions in edible oil,cosmatic,water and urine could be measured...

The structure and performance of the HS 900 headspace sampler were studied This instrument could be linked with any kinds of gas chromatographs Procedures of sampling,sample loading and vials rotating were able to be accomplished automatically by the programed controller The instrument had twelve vial positions Its temperature could be controlled from 45 to 155℃ Chemical compositions in edible oil,cosmatic,water and urine could be measured and their deviations are less than 10% By measuring the same sample,the HS 900 demonstrated the same result as that of the America made HP 18906A head space sampler

本文报道HS┐900型顶空分析自动进样器的结构、性能。仪器可与任何厂家的气相色谱仪配套使用,取样、进样、轮换顶空瓶均由程序控制器自动完成,12个顶空瓶位,控温45~155℃,对食用油、化妆品、水和尿中的化学物质进行测定,相对标准偏差不大于10%,同一样品与美国HP─18906A顶空进样器测试结果一致。

In this paper,a developed normalization method for gas chromatographic analysis is reported.This developed normalization can normalize multi chromatograms obtained by two or more gas chromatographs to calculate analytical results,decreasing greatly the work load when multicomponents (especially in gas sample ) are to be measured.The key of normalization of multi chromatogram is that some component has peak well separated on the multi chromatogram.Relative moarl correction factors of some gas...

In this paper,a developed normalization method for gas chromatographic analysis is reported.This developed normalization can normalize multi chromatograms obtained by two or more gas chromatographs to calculate analytical results,decreasing greatly the work load when multicomponents (especially in gas sample ) are to be measured.The key of normalization of multi chromatogram is that some component has peak well separated on the multi chromatogram.Relative moarl correction factors of some gas components are measured and discussed in this paper.

本文报道一种扩展的气相色谱归一化定量分析方法,使两台或两台以上色谱仪对同一样品的诸多组分所完成的多张色谱图能应用归一定量法进行计算,从而在进行多组分测定(尤其是气体样品的分析)时大大减少工作量。本方法的关键是样品中某一组分在多张图谱中均有分离很好的峰。本文还对气体组分的相对摩尔响应因子进行了测定和讨论

Testing highly sensitive gas chromatographs has strict demand on chromatographic columns. This paper describes the technology for praparing such columns. The practical results show that this technology is effective and the chance of success for preparing columns is over 90%.

高灵敏度气相色谱仪的调校,对调校柱有很高的要求。本文系统地介绍了所研制调校柱的制备工艺。用该工艺取得了制备成功率在90%以上的良好效果,已取代了进口柱。

 
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