Product Overview

The WQA-4120 Water Quality (Total Nitrogen / Total Organic Carbon / Ammonia Nitrogen) Automatic Analyzer adopts high-temperature catalytic combustion technology, chemiluminescence detection technology, non-dispersive infrared CO2 absorption detection technology, and ammonia gas purging technology. With a syringe pump, multi-port switching valve, high-temperature combustion furnace, gas purification device, and chemiluminescence detection module as core components, it converts nitrogen-containing compounds in the sample into nitrogen oxide gas for measurement, thereby calculating the total nitrogen content in the sample. It converts organic matter in the sample into carbon dioxide gas for measurement, and combined with non-dispersive infrared CO2 absorption detection technology, achieves total organic carbon measurement. Under alkaline conditions, ammonia nitrogen is purged and converted into nitrogen oxide gas for measurement, thereby calculating the ammonia nitrogen content in the sample.

Product Features

• Adopts high-temperature sealed catalytic combustion technology, directly converting the liquid phase to the gas phase for measurement, unaffected by sample color and turbidity, with strong anti-interference capability.
• Adopts high-precision sample liquid quantification technology with syringe pump + rotary valve, featuring high metering precision and fast analysis speed, with a single analysis completed within 30 min. It also enables large-ratio automatic dilution, offering strong range expandability.
• Adopts chemiluminescence detection technology with high sensitivity, fast response, good selectivity, and low detection limit.
• High-precision PMT temperature control technology ensures minimal drift.
• The TN measurement process requires no chemical reagents, and a built-in ozone purification device results in minimal secondary pollution to the environment.
• Adopts new NDIR CO2 detection technology to achieve stable TOC measurement.
• Can automatically perform direct conversion between TOC and CODcr, enabling online measurement of CODcr in water samples.

Application Fields

Suitable for industrial wastewater, centralized drinking water, surface water, and other fields.