Gas Chromatography Wax Analysis

Gas chromatography wax analysis is an analytical method for identifying and measuring wax components in biological and environmental samples, including plant cuticular waxes and animal-derived waxes. The sample is vaporized and carried through a capillary column, where compounds separate according to volatility and interactions with the stationary phase; detectors such as flame ionization or mass spectrometry then generate profiles of hydrocarbons, fatty acids, alcohols, and wax esters. In biology, these profiles help characterize protective surface barriers, assess responses to environmental stress, compare species, and investigate roles in water retention, chemical signaling, and host-microbe interactions.

Gas Chromatography Wax Analysis - Related Videos

Education

JoVE Science Education - Chemistry

Gas Chromatography (GC) with Flame-Ionization Detection

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2023

Source: Laboratory of Dr. B. Jill Venton - University of Virginia Gas chromatography (GC) is used to separate and detect small molecular weight compounds in the gas phase. The sample is either a gas or a liquid that is vaporized in the injection port. Typically, the compounds analyzed are less than 1,000 Da, because it is difficult to vaporize larger compounds. GC is popular for environmental monitoring and industrial applications because it is very reliable and can be run nearly continuously.

Gas Chromatography: Introduction

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2024

Gas chromatography (GC) is a technique for separating and analyzing volatile compounds in a sample. Its primary purpose is to identify and quantify components in complex mixtures, making it essential in fields such as environmental analysis, pharmaceuticals, and petrochemicals. GC is also called vapor-phase chromatography (VPC) or gas-liquid partition chromatography (GLPC). In GC, a sample is vaporized and mixed with an inert carrier gas (the mobile phase), which transports it through a column.

Research

JoVE Journal - Environment

Metabolomic Analysis of Barley by Gas Chromatography/Mass Spectrometry

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Cited by 1 •

2024

A method for metabolomic analysis of barley is presented. The method entails fractionation and derivatization of metabolites and analysis thereof by gas chromatography/mass spectrometry (GC/MS). Metabolomic analysis can be used to determine the effect of intercropping and drought stress on the grain.

Headspace Gas Chromatography: A Technique to Assess Ethanol Concentration in Zebrafish Embryos

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2025

This video demonstrates the use of headspace gas chromatography to determine the ethanol concentrations in zebrafish embryos. This method provides a useful tool for qualitative and quantitative analysis of volatile organic compounds.

Identification of Olfactory Volatiles using Gas Chromatography-Multi-unit Recordings (GCMR) in the Insect Antennal Lobe

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Cited by 5 •

2013

Olfactory cues mediate many different behaviors in insects, and are often complex mixtures comprised of tens to hundreds of volatile compounds. Using gas chromatography with multi-channel recording in the insect antennal lobe, we describe a method for the identification of bioactive compounds.

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