Method for measuring content of seven harmful phenol in mainstream flue gas by high efficiency liquid chromatography

A high-performance liquid chromatography, mainstream flue gas technology, applied in measurement devices, instruments, fluorescence/phosphorescence, etc., can solve the problem of inability to detect m-cresol and p-cresol content separately

Active Publication Date: 2009-11-25
CHINA TOBACCO GUIZHOU IND +1
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Problems solved by technology

[0011] The content of m-cresol and p-cresol cannot be detected separately using the above method

Method used

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  • Method for measuring content of seven harmful phenol in mainstream flue gas by high efficiency liquid chromatography
  • Method for measuring content of seven harmful phenol in mainstream flue gas by high efficiency liquid chromatography
  • Method for measuring content of seven harmful phenol in mainstream flue gas by high efficiency liquid chromatography

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Experimental program
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Embodiment Construction

[0066] 1. Working curve and detection limit

[0067] Determination of ortho-quinone, m-quinone, p-quinone, phenol, o-cresol, p-cresol and m-cresol by HPLC external standard quantitative method with fluorescence detector , it is first necessary to establish the regression equation of these phenolic compounds with peak area (Y) versus mass concentration (X, μg / mL).

[0068] Accurately weigh 25 mg of p-quinone, o-quinone, phenol, p-cresol, m-cresol, and o-cresol reference substance, 5 mg of m-quinone reference substance, mix, and use 1% The glacial acetic acid solution was fixed to 25mL, and then doubled with 1% glacial acetic acid solution to prepare phenolic compound mixed reference substance solutions with different mass concentrations of 0.2, 0.4, 1.0, 1.5 and 2.0 μg / mL. High-performance liquid chromatography with a fluorescence detector, linear regression is performed on the mass concentration (X, μg / mL) with the peak area (Y), and the regression equation of phenolic compou...

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Abstract

The invention provides a method for measuring the content of seven harmful phenol in the mainstream flue gas by high efficiency liquid chromatography, comprising the steps of mainstream flue gas collection, flue gas sample preparation and high efficiency liquid chromatography fluorescence detection. Firstly, the fluorescence detection spectrum data output by a high efficiency liquid chromatographyfluorescence detector of different mixed concentration sample is processed with a partial least square method, and a mathematical model is built, and then the fluorescence detection spectrum data ofthe metacresol and the paracresol in high efficiency liquid chromatography fluorescence detection data of the flue gas sample is input into the mathematical model to obtain the concentration of the metacresol and the paracresol. The method can be used for simultaneously analyzing the content of seven harmful phenol compounds in the mainstream flue gas and realizes the measurement of the metacresolcompound and the paracresol compound with a chemometrics method without adopting any other instrument, equipment or reagent, has accurate mausruing result, simple measure process and rapid calculation speed.

Description

technical field [0001] The invention relates to a detection method for harmful phenols in cigarette mainstream smoke, in particular to a method for separating and measuring harmful phenols in cigarette mainstream smoke by using high performance liquid chromatography-fluorescence monitor-partial least squares method. Background technique [0002] Harmful phenolic compounds in mainstream cigarette smoke mainly include: o-, m-, p-quinone, phenol, o-, m-, p-cresol, which are one of the important components of mainstream cigarette smoke It has a direct impact and is also an important class of harmful ingredients. There have been many literature reports on methods for the separation and detection of phenolic compounds. Gas chromatography and high performance liquid chromatography are the two most widely used methods in the analysis of phenolic substances in cigarette smoke, and have successfully detected the phenolic compounds in mainstream and sidestream smoke. The 7 main harmfu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/86G01N30/74G01N21/64
Inventor 彭黔荣杨敏张婕刘钟祥朱红波蔡元青赖东辉
Owner CHINA TOBACCO GUIZHOU IND
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