Applications of Gas Chromatography- (PP SLIDES)

These flashcards cover key vocabulary and concepts related to gas chromatography and its applications.

Dynamic headspace

A sampling technique in gas chromatography using an inert gas to sweep volatile analytes to a trap.

Solid Phase Microextraction (SPME)

A solvent-free and portable sampling method used in gas chromatography.

SCD

A detector optimal for sulfur compound detection in petroleum testing.

GC-MS

A technique commonly used in forensic science to identify drugs of abuse.

Stir Bar Sorptive Extraction (SBSE)

A technique that uses a larger sorptive phase compared to SPME.

Static headspace

A sampling technique in gas chromatography that does not utilize sweeping by an inert gas.

Solvent-free

An advantage of SPME, allowing for portable and efficient analysis.

FID

A detector used in gas chromatography, but not optimal for sulfur compounds.

ECD

A detector used for specific applications, but not the best choice for sulfur compounds detection.

TCD

A type of detector that may not be the most efficient for sulfur compound analysis.

Identify drugs of abuse

One of the main purposes of GC-MS in forensic science.

Measure water purity

Not a primary use of GC-MS in forensic science.

Determine BAC

Not the main use of GC-MS; primarily for drug identification.

Detect metals

Not the main application of gas chromatography techniques.

Thermal desorption

A process that may be used in some gas chromatography techniques including SPME.

Pyrolysis

A method not typically used to sweep volatile analytes in dynamic headspace.

Solvent-based

A description of methods like SBSE compared to solvent-free methods like SPME.

Volatile Organic Compounds (VOCs)

Substances that Stir Bar Sorptive Extraction (SBSE) can analyze.

High-pressure

A characteristic not required for Solid Phase Microextraction (SPME).

Solid samples

Not required for SPME, which is solvent-free.

Portable

One of the advantages of Solid Phase Microextraction (SPME).

Larger sorptive phase

A characteristic that distinguishes SBSE from SPME.

Non-destructive

A property of some sampling techniques like SPME.

Inert gas

A gas used to sweep volatile analytes in dynamic headspace techniques.

Analytes

The substances being analyzed in gas chromatography.

Calibration

An essential process for ensuring accuracy in gas chromatography results.

Resolution

A measure of the ability of a technique to distinguish between two analytes.

Sensitivity

An important factor in detecting low concentration analytes in gas chromatography.

Selectivity

The capability of a method to differentiate between analytes.

Analyzing mixtures

A common application of gas chromatography to separate and identify components.

Detectors

Instruments that identify and quantify analytes in gas chromatography.

Applications

Various fields where gas chromatography is utilized, including environmental, food, and forensic sciences.

Laboratory standards

Regulated benchmarks used for comparison in gas chromatography.

Quality control

A process involving gas chromatography to ensure the quality of products.