sample gas

The basic principles and sample gas pre-process system of CJ-03 oxygen analyzer are introduced.

介绍了CJ-03型氧分析仪的原理，重点介绍了氧分析仪的样气预处理系统。

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The pressure over the sample can then be increased via a gas burette.

借助量气管可增加样品上的压力.

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Fluid sample of gas reservoir has the key role for designing plans to develop reservoir.

油气藏流体取样对于设计油气藏开发工艺方案有着极其重要的作用.

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The column temperature was increased by programming with the sample entrance and detector being at250 ℃. The carrier gas was nitrogen. The flow rate was1ml/ min and shunting ratio was25 ∶ 1.N-octyl alcohol was used as internal standard.

方法色谱柱为DB-WAX毛细管柱，柱温采取程序升温，进样口及检测器温度为250℃，载气为氮气，流速为1ml/min，分流比为25∶1，内标为正辛醇。

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A method of head space solid phase microextraction ( HS-SPME) coupled with gas chromatography-mass spectrometry for the determination of tetramethyllead and tetraethyllead in water sample was developed. The conditions of SPME extraction and GC-MS determination were discussed.

建立了顶空固相微萃取（HS SPME）与气相色谱质谱（GC/MS）联用测定水样中四甲基铅和四乙基铅的方法，探讨了SPME萃取烷基铅的实验条件，并对GC/MS条件进行了优化。

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The recycled dry nitrogen gas is used to purge the sample chamber and upper lid window surface of condensation.

循环的干氮气被用于排除腔体内的空气和吹扫顶盖窗口。

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That is the traditional testing method of the minimum detectable density of the Hydrogen Flame Chromatographer and the other technical indexes is to use hand made sample gas.

传统的检测方法在检验氢焰检测仪的最小浓度及其它技术指标时，通常采用人工配制洋气的方法，其配样不确定度和较大的主观误差成为系统误差的主要部分。

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The article uses headspace gas chromatography to measure halogenated hydrocarbon in the sample water.

应用顶空气相色谱法测定水样中卤代烃.

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In the experiment, the mixture of N_2 and NH_3 is used as the reaction gas, then the sample by the methods of scanning electron microscope ( SEM), X-ray diffraction ( XRD) and Raman scanning is analyzed.

使用N2和NH3的混合气体进行反应，并对样品进行了电子显微镜扫描（SEM），X射线衍射（XRD）和Raman散射分析。

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In this paper, the tactors, which contribute to the uncertainty of determination of nitrogen in iron steel by inert gas fusion-thermal conductivity method, were analyzed and such has been applied to one sample, the final result was obtained.

对情气熔融热导法测定钢铁中氮的不确定度的产生原因进行了分析，并对一个钢样中氮的不确定度进行了评定，最终给出评定结果。

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The sample analysis showed that the nature gas at this area belonged to methane biogenetic gas.

气样组分分析表明,该区天然气属甲烷型生物成因气.

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Sample gas tubes are flushed with nitrogen.

采气管得用氮气吹扫.

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This paper introduces the sample methods, testing point selection, testing procedures and results processing of portable gas detector applied in the confined space in the petro-chemical company.

介绍了便携式气体检测报警仪用于石油化工企业中有限空间的气体检测时的采样方法、检测点选择、检测工作程序以及检测结果的处理。

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