Introduction: AJ-2200 gas-phase molecular absorption spectrometer is the implementation of "Shanghai Enterprise Standard QS / GLF" manufacturing equipment. Small size, light weight (30kg), durable, reliable life of up to 10 years. Instrument measurement items: ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, Kjeldahl, total nitrogen, sulfide, mercury and so on. Features: 1. Using the best 1nm fixed slit, the instrument light energy, good stability, high sensitivity; 2. Light source lamp can be positioned in 1 second, and can easily adjust and correct the problem of poor concentricity of most hollow cathode lamps. Focus the light source lamp to the highest light energy and greatly improve the stability of the instrument. A good tune, long-term use; * 3 dual lamp power supply, a lamp work, other lights preheat, light source lamp (hollow cathode lamp) using 3 ~ 5mA small current lighting, the lamp life of up to 3-5 years do not need to frequently replace the lamp, Benefit from maintenance, save maintenance costs; 4 instrument can correct zero at any time, preheat 10 ~ 15min to determine the sample; 5. Determination of the sample can be "graphical monitoring" the whole process of determination, the state can determine the accuracy of the results and whether the interference, in order to promptly deal with; 6. Humanized Chinese "window" type operating software, standard curves and samples can be saved at any time, call; 7. Built-in filter air carrier gas system, automatically remove the interference gas, without the external high-pressure cylinder gas source and decompression device, safety and environmental protection, saving space; 8. Built-in heating device in the determination of nitrate nitrogen and total nitrogen at the same time provide the temperature of the reaction liquid; 9. Built-in homogeneous purge device, so that samples containing sediment, turbidity and other samples representative, reliable measurement results; 10. Special for efficient sand core gas / liquid separation reaction bottle to improve the gasification efficiency and determination of the sensitivity of 300%; 11. The process of instrument sampling is monitored by "image", promptly finding out the interference and eliminating it in time, and not analyzing the wrong data; 12. Instrument sample quickly (10s) to eliminate interference and other organic matter, without the sample pre-treatment; 13. When measuring the sample, ordinary deionized water (or tap water) and common chemical reagent can be used. The reagent consumes very little (2 ~ 3ml), saving the analysis cost and reducing the environmental pollution. Very much in line with the current national special emphasis on environmental protection requirements; 14. The instrument is most suitable for the determination of turbidity, especially the precipitation of non-uniform sulfide and other samples, give full play to the gas phase molecular absorption spectrometry unique anti-jamming performance superiority; 15.AJ-2200 instrument can be used as advanced mercury detector, mercury for rapid measurement, better performance than atomic fluorescence and mercury analyzer; 16. Ammonia nitrogen oxidation process in full accordance with the Ministry of Environmental Protection standard HJ / T195-2005 requirements, in order to facilitate the issuance of relevant test data. Technical Parameters: 1. High stability: 50 times magnification, zero drift ≤ ± 0.0001Abs, continuous and stable working time is greater than 12 hours; 2. High signal-to-noise ratio: 50 times the sensitivity of amplification, the noise ≤ ± 0.0002Abs, measurable high content of the sample, but also the determination of trace samples; 3. Instrument measurement data real-time display 4 decimal point absorbance values; 4. Peristaltic pump rapid quantitative injection and reagents, from injection → measurement results only 50 seconds to determine the next sample; 5. Measuring range: 0.01 ~ 500mg / L; 6. Detection limit: lower than HJ / T195 ~ 200 (2005) Standard method:
① ammonia nitrogen ........................ 0.005 mg / L
② nitrate nitrogen .................. 0.003mg / L
③ nitrite nitrogen ............... 0.002mg / L
④ Kjeldahl ..................... 0.01 mg / L
⑤ total nitrogen ........................ 0.01 mg / L
⑥ Sulfide ..................... 0.002mg / L
⑦ mercury ........................... 0.001 μg / L 6. Wavelength range: 190nm ~ 900nm, shining wavelength 213.9nm; 7. Wavelength accuracy: 0.2nm; 8. wavelength repeatability: 0.1nm; 9. Standard curve correlation coefficient: r ≥ 0.9
Introduction: AJ-2200 gas-phase molecular absorption spectrometer is the implementation of "Shanghai Enterprise Standard QS / GLF" manufacturing equipment. Small size, light weight (30kg), durable, reliable life of up to 10 years. Instrument measurement items: ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, Kjeldahl, total nitrogen, sulfide, mercury and so on.
