Reagent for rapidly detecting paraquat, and preparation method and application thereof

Abstract

The invention relates to a reagent for rapidly detecting paraquat, and a preparation method and application thereof. The reagent for rapidly detecting the paraquat is prepared by mixing two raw materials of sodium hydrosulfite and soluble carbonate. Compared with an existing detection reagent, the reagent is more convenient to use and higher in use safety. According to the method for rapidly detecting the paraquat, the color can be observed at the sample usage amount of 100-300 mg per 0.3 mL, the effect can be more obvious at the sample usage amount of 100-300 mg per 1 mL, and compared with aconventional test method, the sample usage amount is greatly reduced, the practical application value is wider; through the adoption of the detection method, the test can be completed within several seconds, and the test efficiency is higher under a condition of multiple test samples; and the test proves that 100-300 mg per 1 mL of distilled water is added into the reagent, slight vibration is carried out, a cotton swab is used for dipping a small amount of liquid, and then suspicious spots are wiped, so that the paraquat with the content of more than 0.1 microgram can be detected through thecolor change of the cotton swab, and thus the reagent provided by the invention has a wider test range.

Description

technical field [0001] The invention belongs to the field of pesticide detection, in particular to a reagent for rapid detection of paraquat, its preparation method and application. Background technique [0002] Paraquat is a fast-killing herbicide. It can be quickly absorbed by the green tissue of plants, causing them to die. At present, there are a large number of reports of paraquat poisoning at home and abroad. The intake of paraquat is closely related to the prognosis, and it is also the basis for comparing the efficacy of different treatment methods. [0003] The detection methods of paraquat include blood detection and urine detection. Urine detection is more convenient and quicker, and it is more widely used. However, the current urine detection method needs to add multiple reagents step by step, and each reagent needs to wait for a long time. Waiting for a long time to fully dissolve it before adding another reagent, the detection time is longer, and the amount of...

AI Technical Summary

Problems solved by technology

[0003] Paraquat detection methods include blood testing and urine testing. Urine testing is more convenient and quicker and more widely used. However, the current urine testing method needs to add a variety of reagents step by step. Each reagent needs to wait for a long time. Waiting for a long time to fully dissolve it before adding another reagent, the detection time is longer, and the amount of sample required for detection is relatively large. In poisoning cases, urine is used as physical evidence and needs further inspection, so the amount of test samples is limited. The required test volume is often not reached. On the other hand, the existing urine testing reagents often react too violently when testing. The more test samples, the more severe the reaction, and the resulting use safety is greatly reduced. become an urgent issue