Instrument-Grade Pure Gases:

Argon, Helium, Hydrogen, and Nitrogen: These gases serve as carrier and detector fuel gases. They are used in gas chromatography (GC-FID) and high-performance liquid chromatography (HPLC) systems. Their high purity ensures accurate analytical results.

Zeroing and Purging Analytical Equipment:

Weldstar Specialty Gases are used to zero or purge analytical instruments. For example:

GC-FID (Gas Chromatography with Flame Ionization Detection): Hydrogen and air are used as fuel and oxidant gases, respectively.

HPLC (High-Performance Liquid Chromatography): High-purity nitrogen is used for solvent degassing and as a mobile phase.

Inductively Coupled Plasma (ICP) Analysis:

High-purity gases, such as argon, are crucial for ICP analysis. Argon serves as the plasma gas, creating high-temperature conditions for atomization and ionization of samples. It is also used as the carrier gas for sample introduction.

Atomic Absorption Spectroscopy (AAS):

AAS relies on Weldstar Specialty Gases like argon or nitrogen. These gases are used as the carrier gas for sample introduction and as the plasma gas in flame or graphite furnace AAS systems.