What does GC mean in lab?

What does GC mean in lab?

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.

How accurate is GC MS drug testing?

The accuracy of the GC/MS confirmatory test is virtually 100% from a scientific standpoint. With the use of this two-step process and professional, accredited laboratories to eliminate human error in the process, there should be no concern regarding the accuracy of drug tests.

What is GC MS urine test?

Immunoassay and gas chromatography–mass spectrometry (GC-MS) have been commonly used in UDS. UDS based on mass spectrometry can simultaneously screen for hundreds of drugs and is considered the gold standard for comprehensive drug screening.

How does a GC MS work?

The GC works on the principle that a mixture will separate into individual substances when heated. The heated gases are carried through a column with an inert gas (such as helium). As the separated substances emerge from the column opening, they flow into the MS.

How does GC column work?

In the GC system, a sample is vaporized and injected into the head of the separation column packed with a finely divided solid or coated with a film of a liquid. Extensive research has led to improved columns for achieving better separation and resolution .

Is mass spectrometry a confirmatory test?

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 does a GC test show?

Gas Chromatography Mass Spectrometry (GC/MS) are two very powerful and sensitive instruments used to detect and study trace amount of chemicals as small as one pictogram or 0.000000000001 gram.

What is autosampler in GC?

GC, or gas chromatography, autosamplers are instruments that automatically take a sample and insert it into the GC for analysis, which is both more time effective and more reliable than doing it by hand. The types of samples you will be analyzing will dictate which type of autosampler you will need.

What is a GC autosampler?

If you need a simple liquid or headspace GC autosampler, or one that can do it all (liquid, headspace, solid phase microextraction (SPME) injections, and automated sample preparation), our autosamplers are a step ahead of the norm in performing liquid, solid, and gas sample handling and injection into GC and GC-MS with precision and reliability.

What is the Triplus RSH autosampler?

The TriPlus RSH autosampler expands automated capabilities beyond sample injections to advanced sample-handling cycles. Automating the whole workflow, from sample preparation to injection, increases precision and reproducibility and enables unprecedented flexibility and productivity in GC and GC-MS sampling.

What is the best liquid autosampler for QA?

This rugged, easy-to-use GC liquid autosampler is available as the 8-position AI 1310 autoinjector and the 155-sample capacity AS 1310 autosampler. Both are ideal in QA/QC and high-throughput environments. For extended productivity, the system can operate two injectors simultaneously via its Gemini configuration.

Why choose the Triplus 500 GC headspace autosampler?

The TriPlus 500 GC Headspace Autosampler helps increase sample turnaround and lower overall cost per analysis. Based on Valve-and-Loop technology, this autosampler also ensures the highest data quality and full compliance with regulatory statutes.