Articles and Applications
Many labs are facing helium supply difficulties and rapid price increases as a result of the helium shortage. Lab managers are therefore looking for alternative carrier gases and for many GC applications, hydrogen provides an excellent alternative to helium. Using a hydrogen generator can supply gas to a whole lab and at the same time remove the danger of storing hydrogen in the lab. Laboratories that switch gas supply from helium to hydrogen can see a number of benefits including reduced overheads, faster throughput and even improved separations.
Detailed hydrocarbon analysis (DHA) is a separation technique used by a variety of laboratories involved in the petrochemical industry for analysis and identification of individual components as well as for bulk hydrocarbon characterisation of a particular sample. Bulk analysis looks at gasoline composition in terms of PONA components (Paraffins, Olefins, Naphthalenes and Aromatics) and other fuels in the C1-C13 range since this gives an indication of overall quality of the sample.
Performance of Method 8270 Using Hydrogen Carrier Gas on Bruker Scion GC-MS
The Flame Ionisation Detector (FID) detector is the most commonly used detector in Gas Chromatography with around 90% of GCs equipped with at least one. The FID can be used in almost any organic analysis, and is sensitive down to the parts-per-billion (PPB) range, which is the reason for its widespread use in GC analysis in areas from oil and gas, to food and pharmaceuticals.
The majority of laboratories worldwide use gas cylinders to supply their analytical instruments, sample prep systems and other lab applications. The cylinder suppliers often have long-term agreements with their customers, offering a solution that is relatively cheap and can easily be built into lab overheads. Many lab managers don’t think past this point. Gases are required for analyses, and an established solution is in place which is paid along with the electricity and heating bills so the cycle of cylinder orders, deliveries, collections and invoice payments continues.