COD automatic digestion reflux apparatus

The COD automatic digestion reflux instrument oxidizes organic matter in water samples through high-temperature heating and a strong acid environment, using potassium dichromate as the oxidant. After cooling, the content of unreduced oxidant is measured, and the chemical oxygen demand (COD) is calculated accordingly. It is used for the rapid detection of organic pollutants in wastewater treatment and environmental monitoring.
Selection
When selecting, consider matching the sample processing capacity with the number of digestion holes, ensuring heating uniformity for stable data, using corrosion-resistant materials to suit acidic environments, incorporating safety protection designs to prevent burns, ensuring that supporting detection methods comply with local standards, and evaluating maintenance costs and the convenience of consumable supply.

Terms

Standards

Instruments

The separate design of digestion and determination does not affect the accuracy, COD digestion is completed in 15 minutes, 30 standard Linear dispersion and 199 sets of data can be saved, 4-16 water sample batches are supported, and IP65 waterproof and dustproof design is adopted.

$ 1366.00

Using sealing catalytic digestion technology, the measurement range is 5~ 2000mg/L, the repeability is less than or equal to 3%, the batch processing of 16 water samples is supported, and the PID automatic temperature control and data storage function are provided.

$ 1355.00

Using sealing catalytic digestion and Colorimetry measurement, the measurement range is 5~ 2000mg/L, the repeability is less than or equal to 3%, and the batch processing of 12 water samples is supported, and the operation is simple and time-saving.

$ 1114.00

With standard COD, total phosphorus, total nitrogen working procedures, support custom temperature and time; using new temperature control algorithm, heating uniform and fast, heating up to 165 ℃ only 12 minutes, temperature control accuracy +/- 1 ℃; one-button operation, with automatic alarm and transparent protective cover.

$ 767.00

25-Hole Design Improves Sample Handling Efficiency, Temperature Control accuracy up to +/- 1 ° C to Ensure Digestion Stability, 12-minute rapid warming to 165 ° C to shorten waiting time, Transparent Shield for easy observation of the experimental process.

$ 1009.00

Heat and corrosion resistant material, can digest 25 samples at the same time, Temperature Stability up to +/- 0.5 ℃, support 0-180 minutes timing and continuous digestion, with overheating protection and temperature alarm function.

$ 2302.00

Adopt 165 ℃ thermostatic digestion and spectrophotometric detection technology, detection range 0~ 20000mg/L, support digestion Colorimetric integrated tube design, built-in rechargeable battery, can store 4000 sets of data and support a variety of transmission interfaces.

$ 2526.00

16-Hole design to meet the needs of batch processing, 12 minutes rapid heating to 165 ℃, temperature control accuracy of +/- 1 ℃, equipped with a transparent shield for easy observation, support 5-999 minutes time adjustment.

$ 925.00

36-Hole design supports batch processing, temperature control accuracy of +/- 0.5 ℃, rapid heating to set temperature in 15 minutes, multi-point calibrating to eliminate measurement errors, standard imported glass tube anti-burst.

$ 580.00

15 minutes to quickly heat up to the set temperature, temperature control accuracy of +/- 0.5 ℃, using multi-point calibrated to eliminate temperature errors, standard imported Glass digestion tube resistant to sudden cooling and sudden heating without bursting.

$ 522.00

Colorimetric integrated tube design, no need to transfer liquid, support more than 10 measurements to take the average value, measurement error ≤ +/- 5%, Repeatability ≤ +/- 5%, built-in two COD detection methods, can expand a variety of water quality paraMeter detection.

$ 2526.00

Imported cold light source technology life of 100,000 hours, support 0.001mg/L high Sensitivity detection, with digestion Colorimetric integrated tube design to achieve safe and fast measurement, can store 4000 sets of data and support multi-mode power supply.

$ 2946.00

Colorimetric digestion integrated tube design, no need to transfer liquid; the water sample for more than 10 measurements to take the average value, reduce the error; built-in two COD detection methods, Measurement range 0-20000mg/L.

$ 4688.00

Adopt digestion Colorimetric integrated tube design, detection is safer and more convenient; Minimum display value of 0.001mg/L, Sensitivity is high; Support standard measurement and continuous measurement mode, built-in 4000 sets of data storage, to meet different detection needs.

$ 3268.00

Optical inspection system using imported cold Illuminant and narrow band interference, Optical inspection stability is less than 0.002A/20min, digestion temperature accuracy +/- 0.5 ℃, support COD and ammonia nitrogen dual paraMeter measurement, can save multiple standard Linear dispersion and data.

$ 1548.00

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