Gas Chromatography (GC):

Purpose: Gas chromatography is used to analyze mixtures of gaseous or volatile liquid substances.

Carrier Gases: Helium, nitrogen, argon and hydrogen serve as carrier gases. Helium is commonly used due to its short analysis times, but nitrogen, argon and hydrogen are also alternatives.

Purity Requirements: High-purity carrier gases are essential for reliable results.

Continuous Emissions Monitoring Systems (CEMS):

Application: Weldstar Specialty Gases are used in CEMS to ensure accurate measurement of emissions from industrial stacks.

Purpose: Regulatory bodies enforce compliance with emissions standards, and operators optimize processes to reduce emissions.

Gases Involved: Nitrogen (N), helium (He), argon (Ar), oxygen (O), hydrogen (H), and other Weldstar Specialty Gases are monitored.

Environmental Monitoring:

Water Quality: Weldstar Specialty Gases are used to calibrate instruments measuring parameters like pH, dissolved oxygen, and contaminants in water.

Air Quality: Gas chromatography and other methods monitor pollutants in ambient air, ensuring compliance with air quality standards.

Semiconductor and Electronics Industry:

Purity Control: Oxygen and moisture analyzers, process gas chromatographs, and sensors monitor the purity of inert gases, specialty gases, and toxic gases used in semiconductor manufacturing.

Industrial Gas Applications:

Bulk and Specialty Gas Purity Monitoring: Continuous monitoring ensures the quality of gases used for various purposes, including hydrogen, helium, carbon dioxide, and other Weldstar Specialty Gases.