Technical characteristics of standard COD digesters

The COD digester can be applied to sample pretreatment of various analytical chemistry such as digestion, extraction, and protein hydrolysis.
In addition, microwave organic synthesis will replace traditional synthesis methods with its application advantages
.

Sample preparation of analytical instruments such as atomic absorption spectrometer, atomic fluorescence spectrometer, inductively coupled plasma emission spectrometer, inductively coupled plasma mass spectrometer, liquid chromatograph, gas chromatograph, etc.
More and more laboratories have adopted microwave sample processing systems to replace time-consuming, labor-intensive and polluting methods
.

The technical characteristics of the air-cooled COD standard COD digester: 1.
The COD digester adopts the microcomputer technology to control the heating electric furnace at regular time, which can heat multiple digestion conical reflux devices at the same time; 2.
The COD digester also adopts the glass burr reflux tube instead of The spherical return pipe, and the air cooling technology replaces the tap water cooling method, which can not only save water but also standardize the instrument, and at the same time improve the usability of the instrument
.

3.
The chemical solution preparation, operation and calculation of COD value of the COD digester are in full compliance with the standard.
The water sample with COD value below 50mg/L can be increased by diluting the titrant and oxidant, and the water sample with COD value higher than 1000mg/L , the COD digester can complete the determination by the proportional dilution of the water sample
.

4.
The COD digester ensures the digestion operation with reflux heating and micro-boiling for 2 hours.
The preparation and addition of the reagent solution are consistent with the GB method to ensure reliable analysis results
.

5.
The digestion time can be set.
After the digestion is completed, the instrument automatically stops heating and can be left unattended
.

6.
After the sample is digested, the fan of the instrument continues to work for half an hour to assist the cooling of the sample
.

7.
Save electricity and water, improve efficiency and enhance the performance of the instrument
.

The COD digester has standardized the determination steps of water chemical oxygen demand COD (cr) in accordance with the standard analysis method, and strictly stipulates the conditions such as heating digestion time, solution acidity, dosage of oxidant and catalyst, etc.
, to ensure reliable Analyze the results
.

The COD digester adopts microcomputer technology to control the heating electric furnace at regular time, which can heat 5 250ML conical flasks (or 10 150ML special digestion flasks) reflux devices at the same time
.

The COD digester achieves the purpose of saving energy and increasing the rate
.

At the same time, the COD digester adopts glass burr return pipe instead of spherical return pipe, and uses air cooling technology to replace tap water cooling method, which saves water and standardizes the operation of the instrument
.