Use of ion mobility spectrometer for detecting gibberellins residues in crops and method for detecting gibberellins residues in crops

Abstract

The invention provides the use of an ion mobility spectrometer for detecting gibberellins residues in crops and a method for detecting the gibberellins residues in the crops. The uses of the ion mobility spectrometer are expanded, the thought of detecting gibberellins by using the ion mobility spectrometer is disclosed for the first time, and an implementation method for detecting the gibberellins by using the ion mobility spectrometer is provided. The gibberellins are quickly and conveniently detected, the operating method is simple, the detection sensitivity is high, and the detection result accuracy is high. The gibberellins can be detected in a laboratory as well as a supermarket and a farmers market, and law enforcement officials can implement field screening and detection conveniently.

Description

technical field [0001] The invention relates to the technical field of ion mobility spectrometer and agricultural residue detection, in particular to the use and method of an ion mobility spectrometer for detecting gibberellin residues in crops. Background technique [0002] Gibberellins (Gibberellins, Gas) are a class of plant hormones belonging to diterpenoids, which widely exist in higher plants, fungi and bacteria, and participate in the regulation of various stages of plant growth and development. At present, more than 100 kinds of gibberellins have been isolated from higher plants and microorganisms, generally exist in two forms of free and bound, named GA1, GA2...GAn, etc., collectively referred to as gibberellins. Among them, gibberellic acid GA3 (Gibberellic acid) is the most active, widely distributed, and has been studied the most, so it is often used as a representative of gibberellin. Gibberellin GA3, also known as 920, scientific name is 2,4a,7-trihydroxy-1-me...

AI Technical Summary

Problems solved by technology

[0008] Using fluorescence spectrophotometry and ultraviolet spectrophotometry to determine gibberellin has the disadvantages that although the sensitivity is high, their accuracy is easily reduced by the interference of impurities, and the detection limit is low, which is not suitable for relatively large components. Determination of Gibberellins in Complex Samples

[0011] The disadvantages of the immunoassay method are: the preparation of antibodies is relatively complicated, the requirements for experimental conditions are high, and false positive results are prone to occur

[0016] The disadvantages of the above chromatographic methods are: the pretreatment is cumbersome, and more chemical reagents and equipment are used; the chromatographic ultraviolet and chromatographic mass spectrometers are expensive, and the maintenance cost is high; High professional knowledge requirements, time-consuming and labor-intensive

[0020] The disadvantages of thin layer chromatography are: cumbersome operation, not only need to use a large amount of organic solvents, but also only preliminary qualitative and semi-quantitative

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