Which analysis methods are used for Acetylene (C2H2)?

The correct method for analyzing acetylene (C2H2) is through a multi-gas detector. Multi-gas detectors are designed to identify and measure various gases, including flammable and toxic gases, and acetylene is one of the gases that can be detected using this type of instrument. These detectors often employ specific sensors that respond to acetylene's unique characteristics.

Using a multi-gas detector allows for real-time monitoring of acetylene concentrations in the environment, which is crucial for ensuring safety in industrial settings where acetylene is present, such as welding and cutting applications. This capability is particularly important because acetylene is flammable and poses significant risks if not monitored properly.

Other methods listed may not be as effective or suitable for acetylene detection. For example, while gas chromatography is indeed a powerful analytical technique applicable to various gases, it generally requires more complex sample preparation and may not be ideal for real-time monitoring like multi-gas detectors. Odor assessment depends on human senses, which can be unreliable, especially in emergency situations or in the presence of other strong odors. Finally, chemical analysis and sound detection may not provide the specificity or reliability needed for quantifying acetylene concentrations, particularly in a safety context.