Configuration of Gas Chromatography Analysis Method for Fatty Acids in Edible Oil

Brief introduction

Edible oil is an essential part of people's daily diet, and its quality and nutritional content have a significant impact on human health. Fatty acids are one of the main components of edible oil, and their analysis is an important means of evaluating the quality of edible oil. This article will introduce a method for analyzing edible oil fatty acids based on gas chromatography and provide corresponding configuration schemes.

Analysis method

Sample preparation: Weigh an appropriate amount of edible oil sample, dilute it with n-hexane, and add internal standard substance.

Gas chromatograph analysis conditions: Select appropriate chromatographic column, carrier gas, column temperature, detector and other parameters to achieve the separation and detection of fatty acids.

Quantitative analysis: Calculate the content of each fatty acid by comparing the peak area or peak height of the standard and internal standards.

Configuration plan

Gas chromatograph: Choose a gas chromatograph with high sensitivity, high resolution, and good stability to meet the requirements of fatty acid analysis.

Chromatographic column: Choose a suitable fatty acid analysis specific chromatographic column, such as silica gel or polar column, to improve separation efficiency.

Carrier gas: Choose high-purity nitrogen or helium as the carrier gas to ensure the accuracy of the analysis results.

Column temperature box: Equipped with a column temperature box, it can accurately control the temperature and achieve the separation of fatty acids.

Detector: Choose a hydrogen flame ionization detector (FID) or a thermal conductivity detector (TCD), and select the appropriate detector according to actual needs.

Data processing system: Equipped with an efficient data processing system, it can collect, process, and analyze chromatographic data in real-time, generating accurate quantitative results.

Other accessories: According to actual needs, injection needles, syringes, seals and other accessories can be configured to ensure the smooth progress of the analysis process.