Method 624 is used to measure which type of compounds?

Method 624 is specifically designed for the analysis of volatile organic compounds (VOCs) in water samples. This method utilizes gas chromatography to separate and quantify these compounds, making it highly effective for detecting substances that typically have low boiling points and are likely to evaporate quickly.

Volatile organic compounds represent a broad range of chemicals that can pose health risks and environmental concerns due to their ability to easily enter the atmosphere. Method 624 allows for the identification and quantification of these compounds, which is crucial for assessing compliance with environmental regulations and protecting public health.

In contrast, semi-volatile organics are analyzed using different methodologies that are tailored for compounds with higher boiling points. Heavy metals are assessed through analytical techniques more suitable for solid and liquid samples that require different detection methods, such as atomic absorption or inductively coupled plasma. Thermal compounds are not commonly measured using Method 624, as they do not fit within the profile of volatile organic compounds.