The low accessibility of natural gas fields and transporting pipelines requires portable online analyzers of the composition of natural gas, ensuring nearly chromatographic precision and capable of in situ analysis of a wide range of gases, including infrared-inactive ones (hydrogen, oxygen, nitrogen, chlorine). We have developed an express method of gas analysis meeting all the requirements for analysis of natural gas and its derivative mixtures using a portable 532 nm Raman spectrometer rigidly connected to a hollow-core crystal photonic fiber.

中文翻译：

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EXPRESS：使用便携式空心光子晶体耦合拉曼光谱仪分析天然气

天然气田和输送管道的可达性低，需要便携式天然气成分在线分析仪，以确保接近色谱精度，并能够对多种气体进行原位分析，包括红外惰性气体（氢气、氧气、氮气、氯）。我们开发了一种快速的气体分析方法，使用与空心晶体光子光纤刚性连接的便携式 532 nm 拉曼光谱仪，满足分析天然气及其衍生物混合物的所有要求。