gas-liquid chromatography , GLC (Abkürzung)

The first research papers on gas-liquid chromatography were published in 1950.

Following this the sample is put through a cleanup column prior to analysis by Gas-liquid chromatography.

Gas-liquid chromatography is of particular use in examining volatile organic compounds.

He continued to be involved in developments in gas-liquid chromatography in his later career.

The circulated gas can be examined though gas-liquid chromatography to test for failure or oxidation of the material being tested.

This is particularly true in gas-liquid chromatography where column lengths up to 60 m are possible, providing a very large number of theoretical plates.

Screening methods include thin-layer chromatography, gas-liquid chromatography and immunoassay.

"Identification of mycobacterial isolates by thin-layer and capillary gas-liquid chromatography under diagnostic routine conditions".

(Hence the full name of the procedure is "Gas-liquid chromatography", referring to the mobile and stationary phases, respectively.)

He developed partition chromatography whilst working on the separation of amino acids, and later developed gas-liquid chromatography.

The scent of orchids is frequently analysed by perfumers (using headspace technology and gas-liquid chromatography) to identify potential fragrance chemicals.

In gas-liquid chromatography (GLC) the stationary phase is a liquid such as polydimethylsiloxane, coated on a glass tube.

In another study, where C innocuum was positively identified by gas-liquid chromatography, resistance to vancomycin was seen in all 28 strains isolated.

Urine drug test of gas-liquid chromatography (GLC) confirmation up to 72 hours after the last intake is a practical way of detecting methaqualone use in individuals.

Faecal concentrations and output of short chain fatty acids (SCFA) were assessed on successive days by gas-liquid chromatography in 24 patients with acute watery diarrhoea.

SCFAs were measured in the extract by gas-liquid chromatography on a Pye Unicam PU 4550 chromatograph.

Gas chromatography-mass spectrometry (GC-MS) is a method that combines the features of gas-liquid chromatography and mass spectrometry to identify different substances within a test sample.

Gas chromatography (GC), also sometimes known as gas-liquid chromatography, (GLC), is a separation technique in which the mobile phase is a gas.

Gas-liquid chromatography of lipoidal matter of the seeds of C. sinaica indicated that the seeds consist mainly of a mixture of a series of n-alkanes (75.75%).

Dr. Ackman is best known for his research in gas-liquid chromatography, marine oils and lipids, ocean production processes, Omega-3 fatty acids, petroleum tainting, and fish and shellfish nutrition.

The samples were heated either at 400 C or 550 C for three days in the absence of water, after which the gaseous products were analysed by gas-liquid chromatography (GLC).

Dr. Ahrens is also credited with pioneering the use of gas-liquid chromatography in lipid research, a technique that allows scientists to analyze the fatty acids in fats and see how they change in response to diet.

After assaying each lipid class for total radioactivity, gas-liquid chromatography was employed to measure the total mass and the distribution of mass and of radioactivity in the individual fatty acid components of each lipid fraction.

Under his proposal, labels on margarines and vegetable shortenings would list the amounts of cholesterol-raising and cholesterol-lowering fatty acids, a determination that "can be made in 15 minutes" in the laboratory using an analytical technique called gas-liquid chromatography, Dr. Grundy said.

Gas-liquid chromatography analysis has shown the oil to contain the following fatty acids - hydnocarpic acid, chaulmoogric acid, gorlic acid, lower cyclic homologues, myristic acid, palmitic acid, stearic acid, palmitoleic acid, oleic acid, linoleic acid and linolenic acid.