Instrument Introduction

The economical nitrite analyzer was developed and designed based on the authoritative testing method GB7493-87 "Water Quality - Determination of Nitrite Nitrogen - Spectrometric Method". Developed and produced using imported cold light sources and narrowband interference technology, the performance is stable and reliable. The display screen adopts a 5-inch LCD high-definition screen, combined with a simple three-step detection program, allowing operators to quickly and accurately detect the concentration of water pollutants.

Detection Principle

In a phosphoric acid medium with a pH value of 1.8 ± 0.3, nitrite reacts with p-aminobenzenesulfonamide to form diazonium salts, which are then coupled with N - (1-naphthyl) - ethylenediamine to form a red dye. The absorbance is measured by spectrophotometry, and the nitrite content (mg/L) is directly displayed after processing and calculation by a microcomputer chip.

Technical Parameter

Instrument appearance

Instrument characteristics

1. According to the national standard GB7493-87 "Determination of Nitrite Nitrogen in Water Quality by Spectrometric Method", research and design were carried out.
2. Adopting imported high brightness and long-life cold light source, with excellent optical performance and a light source lifespan of 100000 hours.
3. 5-inch LCD high-definition screen, full Chinese display, direct data reading, simple and time-saving operation.
4. Integrated digestion and colorimetric analysis, no need to replace the tube, simple and fast measurement, and no safety hazards.
5. It can save 80 standard curves and 1800 measured values (date, time, parameters, test data).
6. Memory standard working curve, users can also calibrate the curve as needed.
7. One click factory reset, which can quickly recover in case of curve loss caused by misoperation.
8. It has data storage function and power-off protection function, making it convenient to query historical data and prevent data loss.

Standard configuration