A method of detecting pesticide residues in a healthcare product

A technology for pesticide residues and detection methods, applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as harming the health of users, detection of pesticide residues, and inability to play a role in health care, and achieves convenient operation, low detection cost, and use environment. friendly effect

Inactive Publication Date: 2016-08-17
QINGDAO SAMCDC COMMON HEALTH DETECTION CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

Pesticide residues in health care products not only fail to play a role in health care, but also cause pollution of health care products, endanger the health of users...

Method used

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Embodiment

[0014] The detection process of the detection method for pesticide residues in health products involved in this embodiment includes three steps of sample preparation, GC-MS detection and LC-MS / MS verification:

[0015] (1) Sample preparation: put 2.0g of health care products and 10ml of acetonitrile in a No. 1 PP centrifuge tube with a capacity of 50ml, ultrasonically sonicate for 20min or homogenize for 1min, then add 6g of anhydrous magnesium sulfate and 1.5g of anhydrous sodium acetate No. 1 PP centrifuge tube, shake the No. 1 PP centrifuge tube for 5-8 minutes, then centrifuge at 4000rpm for 3 minutes, pour out the supernatant and add it to No. 2 PP centrifuge tube with a capacity of 50ml, then add 1.5g of anhydrous magnesium sulfate, Add 1.0g Cleanert SC18 adsorbent, 1.0g Cleanert PSA adsorbent and 1.0g graphitized carbon black adsorbent to the No. 2 PP centrifuge tube, vortex the No. 2 PP centrifuge tube for 1 min, centrifuge at 4000rpm for 3 min, pour out The supernatan...

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Abstract

The invention belongs to the technical field of pesticide residue detection, and relates to a method of detecting pesticide residues in a healthcare product. A detection process includes sample preparation, GC-MS detection and LC-MS/MS verification. The method includes subjecting the healthcare product and acetonitrile to ultrasonic wave processing or homogenizing, centrifuging by adopting anhydrous magnesium sulfate, anhydrous sodium acetate and an adsorbent to extract a detection sample, subjecting the detection sample to vacuum concentration until the sample is dry, adding acetone, dissolving with a vortex machine and an ultrasonic cleaner, filtering with an organic phase filtration membrane to obtain a solution for GC-MS detection, and when the GC-MS detection result shows that the detection sample contains the pesticide residues, filtering with the organic phase filtration membrane to obtain a solution for LC-MS/MS verification to verify whether the detection sample contains the pesticide residues. The method rapidly and accurately detects the pesticide residues in the healthcare product through adopting the GC-MS and the LC-MS/MS, reduces consumption of organic solvents, and is good in reproducibility, simple in detection process, scientific and reasonable in principles, convenient in operation, safe, reliable, low in detection cost, accurate in result and environmental friendly.

Description

Technical field: [0001] The invention belongs to the technical field of pesticide residue detection, and relates to a method for detecting pesticide residues in health products, which adopts GC-MS (gas chromatography-mass spectrometry) and LC-MS / MS (liquid chromatography-mass spectrometry / mass spectrometry) for rapid and accurate detection Pesticide residues in health products, reduce the consumption of organic reagents, and have good reproducibility. Background technique: [0002] Health food is a popular term for health food. It is made from natural plants, vegetables, fruits, dairy products and other material components according to the nutrients needed by the human body. For the use of the human body, it is based on three aspects: cleansing, harmonizing and nourishing Classification and preparation, the health care function of health food is gradually being accepted by the masses in today's society. Although it can't improve people's physique in a short period of time, t...

Claims

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Application Information

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IPC IPC(8): G01N30/02
CPCG01N30/02G01N2030/025G01N2030/027
Inventor 王群
Owner QINGDAO SAMCDC COMMON HEALTH DETECTION CO LTD
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