Test paper for detecting fluazinam and detection method thereof

Abstract

The invention discloses test paper for detecting fluazinam and a detection method thereof; the test paper for detecting fluazinam is prepared by the steps: firstly, taking cysteine as a carbon source, adopting a hydrothermal method to prepare a carbon quantum dot solution, then placing filter paper containing no fluorescent agent in the carbon quantum dot solution, soaking, and drying, to obtain the test paper. The detection method comprises the steps: firstly, dotting the test paper with different-content fluazinam and a blank reagent, air-drying, then observing under ultraviolet light and taking photos, preparing a standard colourimetric card, then dotting the test paper with a sample, air-drying, comparing the color depth of the sample with that of the colourimetric card under ultraviolet light, and semi-quantifying the content of fluazinam in the sample. The method has the advantages of low analysis cost, easy and fast operation, high selectivity and good stability and can realize visualization inspection, and the test paper is easy to carry, the detection method is simple and convenient to operate and can be used in on-site rapid detection.

Description

technical field [0001] The invention belongs to the technical field of fluazinam monitoring, and in particular relates to a test paper and a detection method for detecting fluazinam. Background technique [0002] Fluazinam is a 2,6-dinitroaniline low-toxicity fungicide successfully developed by Japan Ishihara Co., Ltd. Mold, etc. have obvious bactericidal effects, and have good control effects on plant-eating mites and clubroot of cruciferous plants. They are often used to prevent pepper blight, potato blight and tomato late blight, and are a good protective agent. fungicide. [0003] Although fluazinam is a low-toxic fungicide, its environmental toxicity is still a concern. Relevant foreign studies have shown that exposure to residual fluazinam in the environment can cause asthma and dermatitis and other diseases that damage the human immune system. In view of this, how to detect fluazinam is of great significance. [0004] At present, the detection methods of fluazin...

AI Technical Summary

Problems solved by technology

[0004] At present, the detection methods of fluazinam mainly include liquid chromatography (HPLC), gas chromatography (GC), gas chromatography-mass spectrometry (GC-MS), etc.; however, these methods usually require complicated sample pretreatment, and there are test High cost, need large-scale instruments and professional operators to operate and other defects, especially not suitable for on-site rapid detection, but there are certain shortcomings

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