Magnetic nano composite material as well as preparation and application thereof in food detection

A magnetic nano-composite material technology, applied in material separation, material analysis, measurement devices, etc., can solve the problems of difficult separation steps and low recovery rate of target compounds, and achieve low matrix interference, short extraction time and simple operation Effect

Active Publication Date: 2020-07-17
沈阳信达泰康医药科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

Ionic liquid dispersion liquid-liquid microextraction (IL-DLLME) has good analytical performance, however, difficult separation steps make it a time-consuming method for the preparation of honey and milk samples
Magnetic solid-phase extraction (MSPE) requires a simple process, but the recovery of target compounds is lower than that of IL-DLLME

Method used

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  • Magnetic nano composite material as well as preparation and application thereof in food detection
  • Magnetic nano composite material as well as preparation and application thereof in food detection
  • Magnetic nano composite material as well as preparation and application thereof in food detection

Examples

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Effect test

Embodiment 1

[0068] 1. Instruments and reagents

[0069] 1.1 Instruments:

[0070] Mettler Toledo AL104 electronic balance (Mettler-Toledo, Switzerland), constant temperature water bath (Shanghai Yarong Biochemical Instrument Factory), kq5200 ultrasonic cleaning machine (Kunshan Ultrasonic Instrument Co., Ltd.), JJ-1 precision booster electric stirrer (Changzhou City Jiangnan Experimental Instrument Factory), JP200-24 test tube nitrogen blowing concentrator (Shanghai Jingpai Instrument Co., Ltd.), Shanghai Jingpai Instrument Co., Ltd. (Shanghai Jingpai Instrument Co., Ltd.), high-speed centrifuge, XK-80A fast mixing device (Jiangsu Xinkang Medical Devices Co., Ltd.), ACQUITY Ultra Performance LC TM Ultra-high performance liquid chromatography (Waters, USA), Quattro micro TM API triple quadrupole tandem mass spectrometer equipped with ESI source (Waters, USA)

[0071] 1.2 Test drug:

[0072] Deionized water (Wahaha Group Co., Ltd.), hydrochloric acid, sodium hydroxide and absolute etha...

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Abstract

The invention belongs to the technical field of food detection. The invention relates to a magnetic nano composite material as well as preparation and application thereof in food detection. The invention specifically relates to an application of an ionic liquid dispersion liquid-liquid microextraction and magnetic solid phase extraction (DLLME-MSPE) two-step extraction technology in selective extraction and trace determination of quinolone antibiotics in honey and milk in combination with ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC-MS / MS). The invention furtherprovides a sensitive and efficient method for detecting quinolone antibiotics in honey and milk. The saturation magnetization intensity of the magnetic multi-walled carbon nanotube coated with the silicon dioxide modified by the magnetic nano composite material chitosan prepared by the invention is 22.9 emu / g or above. The magnetic nano composite material can be used as a magnetic solid-phase extraction adsorbent for simultaneous quantitative analysis of various quinolone drugs.

Description

technical field [0001] The invention belongs to the technical field of food testing, and relates to a magnetic nanocomposite material and its preparation and application in food testing, in particular to a two-step extraction of ionic liquid dispersion liquid-liquid microextraction and magnetic solid-phase extraction (DLLME-MSPE) The application of technology combined with ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC-MS / MS) for the selective extraction and trace determination of quinolone antibiotics in honey and milk. The invention also provides a sensitive and efficient detection method for quinolone antibiotics in honey and milk. Background technique [0002] Animal-derived food is rich in protein, vitamins, fat, etc., and is an indispensable food for maintaining good health. The use of antibiotics plays an important role in animals. It can not only prevent diseases and promote growth, but also act as antibacterial drugs to treat animal di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06G01N30/34G01N30/72G01N30/86
CPCG01N30/02G01N30/06G01N30/34G01N30/7233G01N30/8679Y02A50/30
Inventor 赵龙山杨育文马宏达张天骄李三鸣
Owner 沈阳信达泰康医药科技有限公司
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