50 results about "Dithizone" patented technology

The invention discloses a kit for quickly detecting water sample lead on site. The kit comprises a lead detection reagent, a lead test paper, a standard lead color card and a consumable material which are independently packaged, wherein the lead detection reagent includes a hydrochloric acid eluant and a sodium hydroxide neutralizing solution; the lead test paper is arranged as a sulfydryl dithizone test paper; the standard lead color card is arranged as a colorful picture after the developing reaction of 10ul standard lead solution on the sulfydryl dithizone test paper; the consumable material includes sulfydryl adsorption filter paper, a water sampling sucker, an external box, a filtering elution bracket, a shafting liquid absorber, an effluent tank and an elution plate. The kit has the beneficial effects that (1) the operation process is greatly simplified, the detection time is shortened, the detection can be completed within 30min and the quick qualitative determination for the lead on the sampling site can be realized; (2) high-cost device and high-level technicians are not required; (3) the detection sensitivity, stability and reliability all meet the requirement of hygienic evaluation standard; and (4) the test paper, the consumable material and the reagent are respectively independently packaged and are portable.