Method for rapidly detecting residual forchlorfenuron in cucumbers

A technology for forchlorfenuron and cucumber, which is applied in the field of agricultural residue detection, can solve the problems of large amount of organic reagents used, high requirements for instruments and equipment, and easy emulsification, etc., and achieves simple pretreatment steps, wide use of instruments, and high recovery rate. high effect

Inactive Publication Date: 2015-12-30
INST OF QUALITY STANDARDS & TESTING TECH FOR AGRO PROD OF SHANDONG ACADEMY OF AGRI SCI
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Problems solved by technology

Existing report adopts high performance liquid chromatography to measure the residue of forchlorfenuron in cucumber and kiwi fruit, on the research of forchlorfenuron residue analysis method in grape, DebiSharma and MaheshD.Awasthi adopt liquid-liquid extraction-high performance liquid chromatography, This method uses a large amount of organic reagents, and is prone to emulsification during the extraction process, and the purification s

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Embodiment Construction

[0013] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0014] The invention provides a technical solution: a method for rapidly detecting forchlorfenuron residues in cucumbers, comprising the following steps: Step 1, instrument and reagent selection; Step 2, plant sample extraction; Step 3, soil sample selection; Step 4, Purification; step five, detection by gas chromatography;

[0015] Wherein in step 1, the instrument is selected as electron capture detector and fully automatic accelerated solvent extractor; the reagent is selected as acetone, dichloromethane, anhydrous sodium sulfate...

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Abstract

The invention discloses a method for rapidly detecting residual forchlorfenuron in cucumbers. The method comprises the first step of instrument and reagent selection, the second step of plant sample extraction, the third step of soil sample selection, the fourth step of purification and the fifth step of gas chromatography detection, wherein instruments adopt an electron capture detector and a full-automatic accelerated solvent extraction instrument, and reagents adopt acetone, dichloromethane, anhydrous sodium sulfate, sodium chloride, ethyl acetate, n-hexane and diatomaceous earth. According to the method for rapidly detecting the residual forchlorfenuron in the cucumbers, a gas chromatography detection method of a plant growth regulator forchlorfenuron in the cucumbers and soil is established, and the method has the advantages of being simple and convenient in pretreatment step, wide in use of instruments, high in recovery rate and low in minimum detection limit.

Description

technical field [0001] The invention relates to the technical field of detection and application of agricultural residues, in particular to a method for rapidly detecting residues of forchlorfenuron in cucumbers. Background technique [0002] Forchlorfenuron (forchlorfenuron), chemical name l-(2-chloro-4-pyridine)-3'-phenylurea. It is a phenylurea plant growth regulator with cytokinin activity, its biological activity is 10-100 times higher than that of 6-benzylaminopurine, and it is widely used in agriculture, horticulture and fruit trees [1-3]. With the emergence of Fujiminori grapes, large fruit has become a hot spot pursued by consumers. In order to cater to the psychology of consumers and obtain larger fruits, bulking agents are widely used in the cultivation of fruit trees. Existing report adopts high performance liquid chromatography to measure the residue of forchlorfenuron in cucumber and kiwi fruit, on the research of forchlorfenuron residue analysis method in gr...

Claims

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Application Information

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IPC IPC(8): G01N30/88G01N30/06
Inventor 王磊陈子雷董崭李慧冬方丽萍
Owner INST OF QUALITY STANDARDS & TESTING TECH FOR AGRO PROD OF SHANDONG ACADEMY OF AGRI SCI
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