REK-20N chemiluminescence nitrogen analyzer

　　Chemiluminescence nitrogen analyzerOverview:

The instrument adopts the principle of chemiluminescence detection: after the sample to be tested is introduced into a high-temperature cracking furnace, at a high temperature of around 1050 ℃, the sample is vaporized and undergoes oxidative cracking, where the nitrogen compounds are quantitatively converted into nitric oxide (NO). The reaction gas is carried by the carrier gas, and after passing through a membrane dryer to remove its moisture, it enters the reaction chamber. The metastable nitric oxide reacts with O3 from the ozone generator in the reaction chamber and is converted into excited NO2. When the excited state of NO2 transitions to the ground state, photons are emitted, and the light signal is detected and received by a photomultiplier tube at a specific wavelength. After amplification by a microcurrent amplifier and computer data processing, it can be converted into an electrical signal proportional to the intensity of light. Under certain conditions, the intensity of chemiluminescence in the reaction is proportional to the amount of nitric oxide produced, and the amount of nitric oxide is proportional to the total nitrogen content in the sample. Therefore, the total nitrogen content in the sample can be determined by measuring the intensity of chemiluminescence.

　　Chemiluminescence nitrogen analyzerScope of applicationUsed to determine the total nitrogen content in crude oil, distillate oil, petroleum gas, petrochemical products, food, and water.

Compliant with standards: Compliant with SH/T0657, ASTMD4629, ASTMD5762 and other standards.

Technical parameters:

Measurement range: 0.1mg/L~10000mg/L~%

● Measurable sample status: solid, liquid, gas (with corresponding injector optional)

PMT high voltage range: DC400V~900V (set the required value through the operating system based on the measured concentration). )

● Temperature range: Room temperature to 1300 ℃

Temperature control accuracy: ± 3 ℃

●重复性： 0.1mg/L≤X＜1.0mg/L，≤±0.1mg/L

1.0mg/L≤X＜100mg/L，Cv≤10%；

100mg/L≤X≤10000mg/L，Cv≤5%

● Instrument completeness: mainframe (data acquisition, control system), cracking furnace, automatic sampler, computer (including Xinghua Ruike operating software), printer, etc.

Features:

Windows operating platform, human-machine dialogue, convenient operation.

The core detector of the instrument is manufactured using anti leakage and anti leakage technology, which gives the instrument advantages such as high sensitivity, low noise, wide linear range, and strong anti-interference ability.

The instrument adopts popular circuits and imported components, and the overall performance reaches * level, which is superior to similar domestic products and can replace imports.

High voltage can be adjusted arbitrarily, and single point calibration can be adopted for standard sample calibration, which is convenient, fast, and accurate