Gas chromatography

Gas chromatography, or GC for short, is a commonly used technique in chromatographic analysis. As with all forms of chromatography, gas chromatography is based on the fact that different substances will distribute themselves differently between a stationary phase and a mobile phase, depending on the affinity of each substance for the mobile phase, in the form of an inert gas.

Benefits

• Elimination of gas detectors
• Absolute safety with no risk of explosions thanks to sophisticated alarm systems
• Controlled, absolute purity of gases supplied

LC-MS

LC-MS is a liquid phase chromatographic technique that uses a mass flow meter for qualitative and quantitative analyses. ESI (Electro Spray Interface) or API (Atmospheric Pressure Interface) devices are used to inject gaseous phase analytic compounds into the mass flow meter. In these interfaces, compounds and solvent from the chromatograph column are separated and transformed into vapour phase with the aid of a flow of nitrogen.

Benefits

• Economical: the gases produced by our analytical gas generators cost up to 20 times less than those purchased in cylinders
• Continuous output, 24 hours a day
• Controlled, absolute purity of gases supplied
• Efficient management of gas requirements

Miscellaneous analytical generators applications

THERMOANALYSIS
Thermo analysis is an analytic technique for identifying thermal reactions in materials. Thermal analyzers often require ultra-pure gases to saturate the cell in which the sample is placed.
IR-FT
Infrared (IR) spectroscopy is another common method of analysis. Infrared spectrophotometers for qualitative spectrometric analysis are found in analytical and research laboratories throughout the chemical industry. Gas is normally used to flux the optical area and sample area.

ICP
This high speed metal analysis method uses a plasma source. The technique normally uses gas to feed the plasma. Total analyzers for organic compounds are often used in labs and in environmental monitoring.

ATOMIC ABSORPTION
Atomic absorption spectrometry is used in a wide range of applications. One of the most common is in chemical and clinical analysis labs.

SAMPLE PREPARATION
Various sample preparation techniques require sample solutions to be concentrated by drying. These operations frequently require significant flows of nitrogen.

ENVIRONMENTAL ANALYSIS
This is analysis performed in the field using specific analyzers to continuously monitor environmental pollutants.

PROCESS ANALYSIS
This is analysis performed in the field using specific analyzers to continuously monitor compounds produced during a production process
as requirements