Gas detection method for pesticide residues
A pesticide residue and gas detection technology, applied in measuring devices, air quality improvement, instruments, etc., can solve problems such as complex chemical components, and achieve the effect of comprehensive content
Pending Publication Date: 2022-08-09
上海格瑞产品检测有限公司
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Problems solved by technology
At present, there are many kinds of pesticides and complex chemical components, and there are many kinds of vegetables on the market, so it is necessary to provide a method that can quickly and easily detect the residues of pesticides in vegetables
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[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.
[0031] see Figure 1-5 , an embodiment provided by the present invention: a gas detection method for pesticide residues, comprising the following steps:
[0032] Step 1, sample extraction: Cut multiple parts of the vegetables to be tested and wash them for later use;
[0033] Step 2, sample pulverization: cut the sample in step 1 into pieces, and then pulverize the homogenate and place it in different vessels;
[0034] Step 3, test solution separation: add an extractant to the sample in each vessel in step 2 for ultrasonic extraction, add an adsorbent for centrifugal purification, and then add reduced glutathione and glutathione transferas...
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The invention discloses a gas detection method for pesticide residues. The gas detection method comprises the following steps: step 1, sample extraction: cutting a vegetable to be detected into a plurality of parts, and washing for later use; step 2, crushing the sample: cutting the sample in the step 1 into fragments, then crushing and homogenizing the fragments, and placing the crushed and homogenized samples in different vessels; step 3, separating a test solution, namely adding an extracting agent into the sample in each vessel in the step 2, performing ultrasonic extraction, adding an adsorbent, performing centrifugal purification treatment, then adding reduced glutathione and glutathione transferase, performing catalytic mixing reaction, adding a buffer solution after the reaction is completed to prepare a to-be-detected test sample liquid supernatant, and performing vacuum drying to obtain the to-be-detected test sample liquid. According to the gas detection method for the pesticide residues, excessive large instruments are not needed to participate in detection, the method is rapid, efficient and green, and the content of the pesticide residues in the vegetables can be more comprehensively detected according to different pesticide spraying areas of the vegetables.
Description
technical field [0001] The invention relates to the field of pesticide detection related products, in particular to a gas detection method for pesticide residues. Background technique [0002] With the development of agricultural industrialization, the production of agricultural products is more and more dependent on exogenous substances such as pesticides, antibiotics and hormones. Pesticides play a significant role in promoting the development of forestry and animal husbandry, but at the same time the use of pesticides brings environmental pollution and human health problems. getting more serious. The problem of pesticide residue hazards has also been paid more and more attention, and many countries have formulated pesticide residue limits in food. At present, there are many kinds of pesticides and complex chemical components, and there are many kinds of vegetables on the market. Therefore, it is necessary to provide a fast and simple method for detecting pesticide residu...
Claims
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IPC IPC(8): G01N30/02G01N30/06G01N30/14G01N30/86
CPCG01N30/02G01N30/06G01N30/14G01N30/8675G01N2030/062Y02A50/20
Inventor 郭飞
Owner 上海格瑞产品检测有限公司