GR-3100 online total phosphorus / total nitrogen monitor
Introduction: typical application Automatic continuous detection of total phosphorus, orthophosphate, total nitrogen and nitrate nitrogen in surface water, lakes, wetlands and oceans. working principle Total phosphorus (in accordance with GB11893-89): Persulfate as an oxidant, digested at 120 ° C for 30 min, converted phosphide into phosphate ion, molybdenum blue method by spectrophotometry. Total nitrogen (in accordance with GB11894-89): Persulfate as an oxidant, digested at 120 ° C for 30 min, converted into nitrate ions, the pH of the sample solution was adjusted to 2-3, UV absorption spectrophotometric detection. The instrument has the characteristics of small size, low reagent consumption, fast reaction speed and high analytical precision. Features: 1. Reagent consumption is small, maintenance is small Reagent consumption is only 5% of conventional online analytical instruments, with automatic cleaning function, small maintenance, high degree of automation, suitable for long-term online monitoring. 2. High analysis accuracy and wide application range It has rapid response and high analytical precision. It can be widely used for on-line monitoring of total phosphorus and orthophosphate in water bodies such as surface water, drinking water and wastewater. 3. Small size, easy to install The instrument is small in size, which is only 10%~20% of the volume of conventional instruments. It is flexible in installation, can be wall-mounted or cabinet-mounted, or directly embedded in the existing integrated cabinet on site. No need to add new cabinets. Repeatability 5% range drift 10% (better expected to be 5%) Resolution 0.001 Zero drift 3% Detection limit 0.01 Measurement time 30min Reagent storage None
Introduction: typical application Automatic continuous detection of total phosphorus, orthophosphate, total nitrogen and nitrate nitrogen in surface water, lakes, wetlands and oceans. working principle Total phosphorus (in accordance with GB11893-89): Persulfate as an oxidant, digested at 120 ° C for 30 min, converted phosphide into phosphate ion, molybdenum blue method by spectrophotometry. Total nitrogen (in accordance with GB11894-89): Persulfate as an oxidant, digested at 120 ° C for 30 min, converted into nitrate ions, the pH of the sample solution was adjusted to 2-3, UV absorption spectrophotometric detection. The instrument has the characteristics of small size, low reagent consumption, fast reaction speed and high analytical precision.
