Scope of application:

Hash pre made reagentIn various universities and research institutes, environmental, municipal, agricultural, water conservancy and hydrology, estuarine and coastal, petroleum, chemical, earth, geography, resources and other related majors have been widely applied. Hash prefabricated reagent combined with this Hash portable colorimeterDR300Use with photometer DR3900.DR6000

Product Features

　　●Very good reproducibility ensures product testing accuracy
　　●Directly simplifying the operation process, using it immediately, minimizing analysis time and improving work efficiency to the greatest extent possible
　　●The convenience of the testing process can fully achieve optimal stability and prolong the storage time of the reagents
　　●Basis for Testing Hash ReagentUSEPAAnd the National Institute for Experimental Materials in the United States(ASTM)standard
　　●Hash pre made reagents, as green reagents, can reduce the chance of exposure to hazardous chemicals, thereby ensuring the physical health of operators
　　●It can minimize the problem of waste liquid treatment to the greatest extent possible

Detection type:

includeCODMetal ions/Heavy metal pollutants: copper, iron, chromium, zinc, etc; Toxic substances: arsenic; Nutrients: ammonia nitrogen, total nitrogen, nitrate/Nitrite nitrogen, phosphate, total phosphorus, etc; sulfur/Sulfites, sulfides, cleaning compounds, chloride ions, fluoride ions; Organic pollutants: Cyanuric acid, volatile phenols, pesticides, oxygen scavengers, diamines, anionic surfactants, etc; Disinfectants: total chlorine, residual chlorine, ozone, monochloramine, etc., basically include all items of routine water quality monitoring, providing a guarantee for rapid and accurate on-site emergency monitoring.

Hash pre made reagentA significant feature of this is that the reagents used for each analysis are individually packaged and can be opened and used immediately, reducing or eliminating the need for users to weigh, dilute, and perform other operational steps again. The rapid COD pre prepared reagent digestion method only takes 20 minutes, and the entire testing process, including water sample digestion, colorimetric determination, and other steps, only takes 30 minutes. It can also produce 20 samples at the same time, greatly improving analysis efficiency. Traditional international calibration methods require nearly 3 hours in total and can only produce 8 samples at the same time, which seriously wastes human resources. Taking the COD test in water as an example: the traditional method currently used is the "2-hour heating reflux potassium dichromate titration method". The specific operation is: in a special heating reflux device, under strong acidic conditions, potassium dichromate is used to oxidize the reducing substances in the water sample. Excess potassium dichromate is used as an indicator to test ferrous sulfate, and the standard solution of ferrous ammonium sulfate is dripped back. The amount of oxygen consumed by the reducing substances in the water sample is calculated based on its dosage. And using pre made reagents - rapid digestion for 15 minutesCODThe pre made reagent for chromium only needs to add an appropriate amount of sample into the COD pre made reagent tube, cover it with a lid, shake it until the liquid is in a suspended state, heat and digest for 15 minutes, cool it down, and put it into a spectrophotometer for direct reading.