1.1 本规程涵盖了通过结合使用气相色谱（GC）和红外（IR）分光光度技术定性分析多组分样品的通用技术。通过气相色谱将混合物分离为单独的组分，然后通过红外光谱对这些单独的组分进行分析。讨论的GC-IR技术类型包括洗脱液捕集、流动池和洗脱液沉积。 1.2 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 4.1 本规程为气相色谱法与红外分光光度检测和分析（GC/IR）的正确实施提供了一般指南。本规程假设规程中涉及的色谱法足以分离目标化合物。本规程的目的不是指导用户如何正确执行气相色谱法。

1.1 This practice covers techniques that are of general use in analyzing qualitatively multicomponent samples by using a combination of gas chromatography (GC) and infrared (IR) spectrophotometric techniques. The mixture is separated into its individual components by GC and then these individual components are analyzed by IR spectroscopy. Types of GC-IR techniques discussed include eluent trapping, flowcell, and eluite deposition. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== 4.1 This practice provides general guidelines for the proper practice of gas chromatography coupled with infrared spectrophotometric detection and analysis (GC/IR). This practice assumes that the chromatography involved in the practice is adequate to separate the compounds of interest. It is not the intention of this practice to instruct the user how to perform gas chromatography properly.