SKD-5000 Automatic Kjeldahl Nitrogen Analyzer, Soil Cation Exchange Capacity Detector, 0.1-240mg Nitrogen, SHANGHAI PEIOU ANALYSIS INSTRUMENT CO.,LTD (CAT#: STEM-AIAE-3379-LGZ)

The automatic Kjeldahl nitrogen analyzer (protein analyzer) is a set of automatic intelligent testing instruments designed according to the classical Kjeldahl nitrogen determination principle. The cation exchange performance of soil refers to the exchange between the cations in the soil solution and the fixed cations in the soil, which is determined by the surface properties of the soil colloid. Soil colloid is a complex organic-mineral complex formed by clay minerals and humic acid in soil and combined with each other. The cations it absorbs include potassium, sodium, calcium, magnesium, ammonium, hydrogen, and aluminum. The analysis of soil cation exchange performance includes cation exchange capacity, exchangeable cations and base saturation.
Fully automatic Kjeldahl nitrogen analyzer The soil cation exchange capacity detector uses computer intelligent control, LCD color touch screen operation, Chinese menu interface to complete man-machine dialogue operation, and automatically completes acid addition, alkali addition, diluent addition, distillation, titration, cleaning , storage, printing and a series of standardized processes, the titration is judged by color method (color sensor), the instrument is easy to operate, the data is accurate, and the performance is stable.

Measuring range: 0.1-240mg nitrogen (0.07cmol/KG-140mol/KG)
Sample size: Depends on sample content
Distillation time: 3-8 minutes/sample (large titration cup provides guarantee for long-time distillation and large-capacity titration, and the distillation time can be set)
Distillation capacity: 15~30ml/min adjustable
Pump titration accuracy: RSD<0.002ul/step
Small titration volume: 0.8ul/step
Reproducibility: RSD<0.5%
Add alkali segment: 1-10 times and 0-15s interval
Recovery rate: >99.5% . (as acceptance index)
Reagent pump volume: 0-150ml, 1ml/level
Delay time: 0-1800s (easy to detect nitrate nitrogen)
Distillation power: adjustable
Power supply: AC220V±10%, frequency 50-60HZ
Digestive tube size: 300ml, 650ml

Soil cation exchange capacity detector using stable and reliable red, green, blue three primary color judgment, and real-time display three curves, standard acid titration, CEC content, protein (nitrogen) content. Help users monitor distillation, calculation and titration process in real time.
Has a hint as to whether ammonia is completely distilled to avoid the outflow of erroneous data.
Instrument shell: ABS engineering plastic, avoid sulfuric acid corrosion, ensure instrument insulation.
It has the function of protecting condensate samples.
The distillation and titration were carried out simultaneously to neutralize the vaporized ammonia, avoiding the escape of ammonia as much as possible, and reducing the detection time at the same time.
The titration cup is open and protected from external light.
Automatic detection of water flow and water pressure of cooling water, prompt of shortage of alkali, boric acid, diluent and distilled water.
With the distillation cup temperature real-time detection and control.
It has the function of real-time detection and prompt on whether the protective door is closed.
Automatic cleaning of titration cups and pipes.
Manual, automatic dual mode switch at will, the whole test process real-time tracking display.
The still is controlled by double liquid level, and it is found by mathematical model that the still cup enters into dry firing state. Eliminate dry burning of distilled cups.
Adjustable distillation power: to ensure a good recovery of low concentration samples.
Distillation mode Double distillation mode.
Automatic addition of acid, alkali, diluent, distillation, titration, storage, print out the calculation results.
Real uninterrupted distillation: steam constant, water time steam uninterrupted, ensure smooth ammonia steam out.
Data and test conditions are traceable.
Optional: automatic input of balance data, wireless transmission of test data to computer.

SKD-3600 Automatic Kjeldahl Nitrogen Analyzer, Soil Cation Exchange Capacity Detector, Distillation Capacity 15~30ml/min Adjustable, SHANGHAI PEIOU ANALYSIS INSTRUMENT CO.,LTD (CAT#-STEM-AIAE-3380-LGZ)