Method for quickly detecting benzopyrene content of edible oil based on collinear double-pulse LIBS (Laser-induced Breakdown Spectroscopy) technique

A technology of edible oil and benzopyrene, which is applied in the field of rapid detection of benzopyrene content in edible oil based on collinear double-pulse LIBS technology, can solve the problems of unsatisfactory rapid sampling detection, cumbersome operation process, and long time consumption, and achieve reduction The effect of manual labor intensity and production cost, simple operation process and low time consumption

Inactive Publication Date: 2014-09-03
JIANGXI AGRICULTURAL UNIVERSITY
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Problems solved by technology

[0003] At present, the detection methods of benzo(a)pyrene in edible oil mainly include fluorescence spectrophotometry, high performance liquid chromatography, gas

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  • Method for quickly detecting benzopyrene content of edible oil based on collinear double-pulse LIBS (Laser-induced Breakdown Spectroscopy) technique

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Embodiment Construction

[0029] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0030] see figure 1 A device for rapid detection of benzopyrene content in edible oil based on collinear double-pulse LIBS technology, including double-pulse width solid-state laser 1, laser beam 2, energy meter 3, reflector 4, focusing lens 5, argon flow 6, argon gas Bottle 7, glassware 8, stage 9, filter paper layer 10, second focusing lens 11, optical fiber 12, spectrometer 13, feedback device 14, computer 15, digital pulse delayer 16.

[0031] In this embodiment, the specific operation process is: first, the edible oil sample is adsorbed on multi-layer filter paper to form a filter paper layer 10 for absorbing the edible oil sample, and then the filter paper layer 10 for absorbing the edible oil sample is placed in the glass vessel 8 , then...

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Abstract

The invention relates to a method for quickly detecting the benzopyrene content of edible oil based on a collinear double-pulse LIBS (Laser-induced Breakdown Spectroscopy) technique. The method comprises the following steps of collecting edible oil samples with different sources and different benzopyrene contents first; then performing analytical processing on the collected edible oil samples, and establishing a benzopyrene content prediction model; finally, processing to-be-detected edible oil, and then inputting into the established benzopyrene content prediction model, so as to quickly obtain the benzopyrene content of the to-be-detected edible oil. The method has the advantages of no need of sample pretreatment, no destruction, rapidity and real-time performance in detection, simplicity and convenience in operation and low time consumption, additionally, the real-time monitoring and the on-site quick sampling detection of the benzopyrene content in the production process of the edible oil can be satisfied, the working efficiency is effectively improved, and the labor intensity and the manufacturing cost are reduced.

Description

technical field [0001] The invention relates to the technical field of food detection, in particular to a method for rapidly detecting the content of benzopyrene in edible oil based on collinear double-pulse LIBS technology. Background technique [0002] Benzopyrene, also known as benzo(a)pyrene, abbreviated as BaP, is a highly active indirect carcinogen, which is extremely harmful to the human body. After ingestion, the human body produces final carcinogens under the action of oxidase, leading to the occurrence of gastric cancer, liver cancer, intestinal cancer and other malignant tumors. In addition, benzo(a)pyrene is also teratogenic and mutagenic, which can cause DNA damage and sperm distortion in mammals. And edible oil is the necessities of people's life, in recent years the food safety incident that the content of benzo(a)pyrene in edible oil exceeds the standard occurs frequently, seriously endangering people's health. Therefore, it is necessary to detect the conte...

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Application Information

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IPC IPC(8): G01N21/63
Inventor 孙通刘木华段武茂刘日龙许朋胡田
Owner JIANGXI AGRICULTURAL UNIVERSITY
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