This requires the detector to be positioned on the far side of the gas sample, which makes its use in some enclosed or remote environments very difficult.

这要求探测器被放置在气体样本的对面，这使得它在一些封闭或较远的环境里的应用变得十分困难。

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Objective to explore the factors that affect the blood gas sample error and formulate corresponding policies.

目的探讨影响血气标本误差的因素及制定相应的对策。

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Non-methane hydrocarbons in the gas sample are analyzed simultaneously by GC with double columns and double FIDs.

介绍了用双柱双氢火焰离子化检测器同时进样气相色谱法分析气体样品中非甲烷烃。

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Shaw said a DNA sample was found at the gas station, but he could not tie it to Heeringa's disappearance, WOOD reported.

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"We have water, " said Bill Boynton of the University of Arizona, lead scientist for the Thermal and Evolved-Gas Analyzer, the ovens that will cook the sample and measure the temperatures needed to vaporize the components.

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"Different constituents in that sample will break down at different temperatures and become gas, " said Vasavada.

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