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A method for detecting PAES and BHT in Antarctic krill
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An Antarctic krill, detection method technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as organic and functional damage, and achieve the effect of high accuracy and good detection accuracy
Active Publication Date: 2022-05-27
SHANDONG NORMAL UNIV
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However, BHT has acute and chronic toxicity and cancer-promoting properties, which are mainly manifested in the organic and functional damage to animal liver and lung. At present, BHT is not allowed to appear in fresh aquatic products and frozen aquatic products.
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Embodiment 1
[0052] 1 Materials, instruments and reagents
[0053] 1.1 Sample material
[0054] Fresh Antarctic krill was fished by Liaoning Fishery Group in the waters near China's Antarctic Great Wall Station (Area 48.1) in the first quarter of 2018, with a body length of 25-57mm. Harvested Antarctic krill was rapidly frozen at -80°C, immediately transported back to the laboratory and continued to be stored at -80°C until further analysis.
[0055] 1.2 Main instruments and equipment
[0056] Table 1 Instruments and equipment
[0057]
[0058] 1.3 Standards, main reagents and materials
[0059] 1.3.1 Standard
[0060] Mixed standard solution containing 16 kinds of PAEs (n-hexane as solvent, concentration of 1000mg / L, purity greater than 98%, purchased from Dr. Ehrenstorfer, Germany): DMP, DEP, DAP, DIBP, DBP, BMPP, DEEP, DPP , DHXP, BBP, DBEP, DCHP, DEHP, DPHP, DNOP and DNP.
[0061] 1.3.2 Main reagents and materials
[0062] Table 2 Reagents and materials
[0063]
[0064] ...
Embodiment 2
[0122] 1 Materials, reagents and instruments
[0123] 1.1 Sample material
[0124] Fresh Antarctic krill was fished by Liaoning Fishery Group in the waters near China's Antarctic Great Wall Station (Area 48.1) in the first quarter of 2018, with a body length of 25-57mm. Harvested Antarctic krill was rapidly cryopreserved at -80°C, shipped back immediately and continued to be stored at -80°C until further analysis.
[0125] 1.2 Main instruments and equipment
[0126] Table 7 Instruments and Equipment
[0127]
[0128] 1.3 Standards, main reagents and materials
[0129] 1.3.1 Standard
[0130] BHT standard product, purity >99.5%, purchased from Nanjing Taipu Rui Instrument Equipment Co., Ltd.
[0135] 2.1 Preparation of standard series solutions
[0136] Accurately weigh 10.0 mg of BHT standard, dissolve it in methanol and dilute to...
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Abstract
The present disclosure relates to a method for detecting PAEs and BHT in Antarctic krill. Phthalate is a commonly used plasticizer, which has estrogen-like and anti-androgenic effects and can interfere with the endocrine system in the body. 2,6-di-tert-butyl-p-cresol is a common phenolic antioxidant that can be used as a food additive to prevent food from rancidity, but it is not allowed to add BHT to seafood, and PAEs are The binding ability is weak, and it is easy to be released into the water body and deposited in marine animals. The disclosure provides a method for detecting PAEs and BHT in Antarctic krill, which is extracted and concentrated by an organic solvent, purified by solid-phase extraction, and then detected by gas-mass spectrometry. The detection method provided by the disclosure has good detection accuracy, and Antarctic krill, as a good raw material of medicine / health care product, provides an accurate and reliable detection method which has promotional significance.
Description
technical field [0001] The present disclosure belongs to the technical field of pollutant detection in Antarctic krill, in particular to a method for detecting phthalates and 2,6-di-tert-butyl-p-cresol in Antarctic krill. Background technique [0002] The disclosure of information in this Background section is only for enhancement of understanding of the general background of the disclosure and should not necessarily be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. [0003] Phthalate Esters (PAEs) are also known as phthalates. There are 16 common PAEs, which are usually used as plasticizers. Animal experimental studies have shown that PAEs have estrogen-like and anti-androgenic effects, can interfere with the body's endocrine system, reproductive system, etc., and also have significant effects on submerged plants, invertebrates, and vertebrates in water. Microplastic de...
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