Methanol Purge & Trap

Methanol Purge & Trap is a specialized technique used for the analysis of volatile organic compounds (VOCs) in environmental samples. It involves purging the sample with helium gas to extract the VOCs, trapping the extracted VOCs on a sorbent material, and then heating the sorbent to release the VOCs for analysis using gas chromatography-mass spectrometry (GC-MS).

Methanol is commonly used as the purge solvent in this technique because of its low boiling point and good solubility for VOCs. The sample is purged with helium gas, which carries the VOCs into a trap filled with a sorbent material, such as Tenax or activated charcoal. The trap is then heated to release the VOCs, which are carried by helium gas into the GC-MS for analysis.

The Methanol Purge & Trap technique is used to analyze VOCs in a variety of environmental samples, such as air, water, and soil. It is commonly used in environmental monitoring, such as for the detection of contaminants in drinking water or industrial emissions.

Overall, Methanol Purge & Trap is a highly sensitive and specific technique for the analysis of VOCs in environmental samples. It allows for the detection and quantification of low levels of VOCs in complex sample matrices, making it an important tool for environmental monitoring and quality control purposes.

• Analysis of volatile organic compounds (VOCs) in environmental samples such as air, water, and soil

• Detection of contaminants in drinking water and industrial emissions

• Identification of VOCs in food and beverages, such as wine and fruit juices

• Quality control in the production of consumer products, such as cosmetics and cleaning agents

• Monitoring of indoor air quality and workplace exposure to VOCs

It's important to note that while Methanol Purge & Trap is a useful analytical technique, methanol itself can be hazardous if not handled properly. Appropriate safety measures should be taken when using methanol, such as using protective equipment and working in a well-ventilated area.

Cas Number: 67-56-1

Einecs Number: 200-659-6

HS Code / Commodity Code: 2905110010

UN Number: 1230

Hazard Class: 3

Packing Group: 2

Hazard Phrases: H225,H301+H311+H331

Prec Phrases: P210,P280,P302+P352+P312,P304+P340+P311,P370+P378,P403+P235