Fully Automatic Total Phosphorus And Total Nitrogen Analyzer
CF7001
The CF7001 fully automatic total phosphorus and total nitrogen analyzer can complete the whole process of total phosphorus and total nitrogen analysis and determination with one click.
Total phosphorus: According to the national standard method "Determination of total phosphorus in water quality - ammonium molybdate spectrophotometry" (GB11893-89), potassium persulfate is automatically added to the water sample as an oxidant to digest the unfiltered water sample and oxidize all the phosphorus contained into orthophosphate. In an acidic medium, orthophosphate reacts with ammonium molybdate to generate phosphomolybdic heteropoly acid in the presence of antimony salt, which is immediately reduced by ascorbic acid to generate a blue complex for colorimetry.
Total nitrogen: According to the national standard method "Determination of total nitrogen in water quality by alkaline potassium persulfate digestion and ultraviolet spectrophotometry" (HJ636-2012), alkaline potassium persulfate is automatically added to the water sample. At 120~124℃, the alkaline potassium persulfate solution converts the nitrogen of nitrogen-containing compounds in the sample into nitrate. The absorbance is measured at wavelengths of 220nm and 275nm by ultraviolet spectrophotometry.
1. Intelligent high-pressure sterilizer: automatic opening and closing of the lid, water addition, temperature increase, and air release, real-time monitoring of pressure and temperature, and dual water level monitoring to ensure the safe operation of the autoclave.
2. One-button operation: only need to edit the program to add samples, one-button operation of the instrument, automatic reagent addition, high-pressure digestion, colorimetry, data storage and other processes.
3. Sample determination: Total phosphorus and total nitrogen samples can be analyzed at the same time, and samples can be added at any time during the sample preparation process.
4. Closed-loop control system for instrument operation: When the instrument is hit by the mechanical arm, the instrument can automatically stop running and alarm to protect itself.
5. Automatic opening and capping device: The equipment can automatically open the lid of the sample bottle, tighten the lid after adding the reagent, and ensure that the sample is digested in a sealed state.
6. LIMS function: It can upload experimental data in real time and connect to the LIM system.
