Specialist in Gas Chromatography

1. Importance of Gas Chromatography: Impurity Testing of Process Gas Chromatography is a generally used analytical technique in the laboratories. GC and GCMS are used essentially for the assessment and analysis for semi volatile and volatile organic synthesis intermediates. Active substances in the finally formed product or the analysis of OVIs- Organic Volatile Impurities that is present in the raw materials, packaging materials and finished products. Lately, gas chromatography has gained popularity for many routine applications. In fact, it has become vital for pharmaceutical, oil industry and other science labs. During the manufacturing process, pure gases or the mixtures such as Hydrogen, Ammonia, Nitroge, Boron Hydride etc. are being used for numerous purposes like lyophilization, synthesis, sterilization, extraction, milling, hydrogenation, chemical synthesis, providing inert atmosphere to avoid oxidation and keep the thermal stability. Web: www.quadrexcorp.com email:sales@quadrexcorp.com Tel. 203.393.3112

2. Nitrogen is the most commonly used gas during the production, transportation and storage stage in the pharmaceutical industry. Being an insert gas, Nitrogen is used to provide a nonflammable and dry environment for production and storage. Other uses of nitrogen are aseptic packaging, freeze drying, and transportation of products at particular temperature. What is Gas Chromatography? Chromatography is a process which separates the mixture of compounds in different components. By separating these samples into individual components, it becomes easier to identify and measure the components in the sample. There are several chromatographic techniques and equipments. Gas Chromatography is one those techniques. It is assumed that around 10 to 20 percent of the known compounds are analyzed through GC. In order to be suitable for GC analysis, it is necessary for a compound to have thermal stability and sufficient volatility. If all or some of the components are in vapor or gas phase at 400 to 450 degree Celcius or below and do not decompose at these temperatures, then can be analyzed through GC. Once of the carrier gases is flown into the injector through the inlet column and then into the detector. It is followed by one of the samples being introduced into the injector. This is done through exterior sampling or syringe like device. The injectors are heated at 125 to 250 degree C temperature causing some of the samples to evaporate. The vaporized solutes are then transported by the carrier gas. The various solute travels at different rates through the column depending upon their physical properties and temperature. There are several firms like Quadrex that are specialist at providing the various equipments involved in Gas chromatography process which helps to increase its accuracy and produce desirable results. Buying equipments form reputed source also makes sure that you are having quality material by your side. About the Company:Quadrex Corp is an online store that supplied gas chromatographic equipments in wholesale and retails. We provide high quality equipments with increased accuracy and high discounts. We stock capillary columns, portable GCs, peak scientific gas generators like Hydrogen Generator, Nitrogen Generator & Zero-Air Generator. You can reach us through http://www.quadrexcorp.com. Web: www.quadrexcorp.com email:sales@quadrexcorp.com Tel. 203.393.3112