Analysis method configuration of fatty acid gas phase color spectrometer in edible oil

Ⅰ. Introduction

Edible oil is an indispensable part of people's daily diet, and its quality and nutrients have an important impact on human health. Fatty acid is one of the main components of edible oil. Its analysis is an important means to evaluate the quality of edible oil. This article will introduce a method based on gas chromatography to analyze edible fatty acids and provide corresponding configuration solutions.

Ⅱ. Analysis method

Sample preparation: Called an appropriate amount of edible oil sample, dilute with orthopedane, and add internal standard substances.

Analysis of gas chromatography: Select the appropriate parameters such as chromatography columns, carrier gas, column temperature, detector, etc. to achieve separation and detection of fatty acids.

Quantitative analysis: Calculate the content of each fatty acid through comparative standards and internal peaks or peaks of internal standards.

Ⅲ. Configuration scheme

Gas color spectrometer: Choose a gas color spectrometer with high sensitivity, high resolution, and good stability, which can meet the requirements of fatty acid analysis.

Polarites: Select the appropriate fatty acid analysis for special chromatography columns, such as silicone or polar columns to improve the separation effect.

Loving gas: Choose high -purity nitrogen or sorchium as a load to ensure the accuracy of the analysis results.

Pillar thermostat: Equipped with the heating box, which can accurately control the temperature and achieve the best separation of fatty acids.

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

Data processing system: Equipped with high -efficiency data processing systems, you can collect, process and analyze chromatographic data in real time, and generate accurate quantitative results.

Other accessories: According to actual needs, it can be configured with accessories such as injections, syringes, sealing parts to ensure the smooth progress of the analysis process.

Ⅳ.Precautions

Ensure the daily maintenance and maintenance of the gas color spectrometer, and check the performance of the instrument regularly to ensure that it is in a good working state.

Strictly control the temperature of the chromatographic column and the air loading to ensure the separation effect of fatty acids.

Select the right internal standard to improve the accuracy of quantitative analysis.

When preparing samples, pay attention to avoid oxidation and degradation of fatty acids to ensure the reliability of the analysis results.

Comply with laboratory safety regulations during the operation to avoid safety accidents.

By analyzing fatty acids in edible oil through gas chromatography, you can obtain accurate fatty acid component information to provide a basis for evaluating the quality and nutritional component of edible oil. When configured the gas color spectrometer, the performance parameters of the instrument, separation effect, detection accuracy, etc. should be considered to ensure the reliability of the analysis results. At the same time, pay attention to the daily maintenance and maintenance of the instrument to ensure its long -term stable operation.

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