How Gas Chromatographs Work & How We Save You Time & Money
Regardless of GC system configuration, Excedr’s equipment lease program is able to source all instrument types and can accommodate any model preferences you might have. Request an estimate today and see how leasing can benefit you.
All equipment brands/models are available
The Advantages of Excedr’s Gas Chromatography Instrument Leasing Program:
- Eliminates the upfront cost of purchasing equipment by spreading its cost over time
- Minimizes equipment downtime with included complete repair coverage and preventive maintenance
- Takes advantage of potentially 100% tax deductible* payments, providing you significant cash-savings
- Expedites the administrative work needed for instrument procurement and logistics
- Conserves working capital, enabling you to reinvest in your core business and operations (staffing, inventory, marketing/sales, etc.)
- Accommodates all manufacturer and model preferences
*Please consult your tax advisor to determine the full tax implications of leasing equipment.
Gas chromatography (GC) is a technique used for the separation and analysis of volatile and semi-volatile compounds (compounds that are easily vaporized at room temperature).
Separation occurs based on the interaction of molecules with the mobile phase and the stationary phase of GC. The less volatile molecules interact more with the stationary phase and move slowly, whereas more volatile molecules interact more with the mobile phase and move faster. When the analyte is detected the computer gives a peak with respect to the retention time of the sample. The area under the peak gives information about the concentration of the sample. This graphical data, specifically, the series of peak, is referred to as a chromatogram.
There are a number of components used in gas chromatography, which, together, make up instrumentation that is referred to as gas chromatography systems, GC systems, or gas chromatographs. These system allows scientists and researchers in the life sciences and pharmaceuticals industries, as well as industrial manufacturing, to isolate and analyze volatile compounds.
When using a GC system, a technician can obtain a compound analysis without causing decomposition of an analyte. For example, a gas chromatograph is typically used to separate different compounds in mixtures and test the purity of those substances. One of the few downsides to GC, however, is that it can only analyze compounds up to a certain molecular weight.
In general, the GC process involves two phases: mobile phase and stationary phase. The mobile phase regards a carrier gas, which is often a nonreactive or inert gas. Helium is the standard choice for most devices. The stationary phase refers to a microscopic layer of polymer or liquid that is set on an inert support inside tubing which is generally made of glass or metal.
Gas analysis occurs after the gasses react with the walls of the stationary-phase coated column, which causes each individual compound to elute at different times. In GC, elution refers to the extracting of a material from another. This elution is referred to as the retention time of the compound, and comparing these times provides helpful data that makes GC analysis so useful.
Methods, Benefits, & Aerograph Machine Cost
While there are many modes of GC, such as vapor-phase chromatography (VPC) and gas-liquid partition chromatography (GLPC), they all refer to the same separation of gases. Many methods exist to customize the analytical uses of gas chromatography, and are as follows:
We Offer Gas Separator System Leases to Fit Every Need
If you’re interested in separating and analyzing organic compounds using gas chromatography systems, or wish to combine the analytical powers of mass spectrometry with gas chromatography, we can help.
Lease your next GC/MS system with Excedr and save on upfront costs, protect your instrumentation with repair and preventive maintenance, and manage cash flow more easily through affordable and predictable scheduled payments.
Furthermore, if you’re interested in standalone or tandem mass spectrometers, we can help you with that too. Call us at (510) 982-6552 or complete our contact form and we can discuss your customizable leasing options in detail.
This off-balance sheet financing structure provides three options at the end of the term. The lessee has the option to return the equipment to the lessor, renew at a discounted rate, or purchase the instrument for the fair market value. Monthly payments are also 100% tax deductible which yields additional monetary savings.
If you recently bought equipment, Excedr can offer you cash for your device and convert your purchase into a long-term rental. This is called a sale-leaseback. If you’ve paid for equipment within the last ninety days, we can help you recoup your investment and allow you to make low monthly payments. This also frees up money in your budget rather than tying it down to a fixed asset.