The invention provides a
toxicant qualitative and semi-quantitative detection kit and a
toxicant qualitative and semi-quantitative method. A 5ml detection liquid centrifugal tube, a 5ml blank centrifugal tube, a reaction colourimetric card and a qualitative detection strip are arranged in the kit; the 5ml detection liquid centrifugal tube contains 3ml detection liquid; and the reaction colourimetric card is that detection liquid is added when in different
paraquat concentrations. The
toxicant qualitative method comprises the steps of: (1), adding a sample to be detected into the detection liquid, wherein the
mass ratio of the sample to be detected to the detection liquid is 1:4 to 4:1; (2), if the colour of the
mixed solution in the step (1) is changed, representing that the sample to be detected contains
paraquat; and (3), when immersing the immersing end of the qualitative detection strip in the sample to be detected, instantly changing the colour in a reaction tank, and representingthat the sample to be detected contains
paraquat. According to the toxicant qualitative and semi-quantitative detection kit and the toxicant qualitative and semi-quantitative method in the invention,by utilization of the principle that
sodium hydrosulfite and paraquat perform colour changing reaction in an alkaline condition, the qualitative detection strip and the qualitative and semi-quantitative detection kit are prepared; a novel diagnosis method can be provided for clinically excluding
paraquat poisoning; and the kit effectively serves in clinic, and has very high social value.