What does the GC MS instrument do?
The Gas Chromatography/Mass Spectrometry (GC/MS) instrument separates chemical mixtures (the GC component) and identifies the components at a molecular level (the MS component). The GC works on the principle that a mixture will separate into individual substances when heated.
What does GC test for?
What is gas chromatography? Gas chromatography (GC) is an analytical technique used to separate the chemical components of a sample mixture and then detect them to determine their presence or absence and/or how much is present.
What is a GC MS system?
GC / MS systems (also known as gas chromatography–mass spectrometry systems or GCMS systems) utilize a powerful combined technique that gives a higher level of substance identification of volatile chemicals than can be achieved by either system individually.
What does GC MS stand for in drug testing?
The most sophisticated drug-testing approach is gas chromatography coupled with mass spectrometry (GC/MS), which is regarded as a “gold standard”; it is used in confirmatory testing.
What is the difference between GC and GC-MS?
1. Both LC-MS and GC-MS are methods to separate chemicals in a mixture or a sample. The only difference is that LC-MS uses a solvent as its mobile phase, while GC-MS uses inert gases (like helium) in the same capacity. 3.
How are furan levels determined in gas chromatography?
Headspace GC is fast, reliable and can be used for the quantification of furans in common beverages. The internal standard calibration of furan across 1-40 µg/L responded linearly. Beverages were analyzed and the level of furan determined. The furan was identified by both the retention time and the MS fragmentation pattern.
What are the sources of furan in food?
The U.S. FDA has recently published a report on the occur- rence of furan in a large number of thermally processed foods, especially canned and jarred foods, including baby foods and infant formulas. The primary source of furan in food is considered to be thermal degradation of carbohydrates, such as glucose, lactose and fructose.
Why is furan considered to be carcinogenic to humans?
Furan is naturally occurring at low levels in many foods and drinks.1 Furan consumption is of concern because it has been classified by the International Agency for Research on Cancer (IARC) as possibly carcinogenic to humans, based on studies with laboratory animals.
Is the DFS magnetic sector GC-HRMS system the gold standard?
For worldwide compliance in Dioxins and POPs, the DFS Magnetic Sector GC-HRMS continues to set the gold standard in providing ultimate confidence, superior performance, and robustness. Video Player is loading. This is a modal window.
