Carbon tetrachloride standard solution is primarily used in analytical and environmental laboratories as a reference standard for calibration and quality control purposes. It is employed in gas chromatography (GC) and mass spectrometry (MS) to identify and quantify carbon tetrachloride in various samples, such as air, water, and soil. This solution is crucial for monitoring environmental pollution, ensuring compliance with regulatory standards, and assessing the effectiveness of remediation efforts. Additionally, it serves as a solvent in specific chemical reactions and processes, though its use has declined due to its toxicity and environmental impact. In research, it is utilized to study the behavior and degradation of volatile organic compounds (VOCs) in different environments.