KJELDAHL LINE

 
Innovative Solutions for Varied Ranges of Application
 
Do you carry out nitrogen and protein determinations according to Kjeldahl in your laboratory? Or do you determine steam-volatile components such as alcohol, phenol, etc.?
 
Using the Buchi Kjeldahl line you will optain optimum results with significant time and cost saving. The choice is yours: from a simple distillation unit to the automatic system with integrated titration and evaluation.

 

Digestion

Digestion Unit K-424/K-435  
Digestion unit for Kjeldahl distillation

- Short heating times of 10 min. to approx. 650C
- No escape of sulfuric acid or acid fumes, thus no
  nuisance odors in the workplace
- The use of glass parts means that the digestion
  process is clearly visible
- Guarantees no carry over

The proven Bchi Digestion Units are designed for between 1 and 6 or 1 and 12 samples. Digestion times are between 20 and 60 minutes, depending upon sample amount and sample type.

The digestion vessels are heated uniformly from the side. This guaranties even boiling characteristics without boiling delay. Temperature control is continuous up to approx. 650C. Thanks to the high temperature, even samples which tend to foam can be digested without a problem.

Ordering information
K-424 Digestion Unit, complete with 6 digestion vessels, 1 aspiration module, 1 digestion vessel holder and rack for 6 digestion vessels.

New
Aspiration Module for digestion with H2O2, suitable for K-424 and K-435 Digestion Units.

- Shorter digestion times (15 to 30 min.)
- Problem-free digestion of foaming samples
- No heavy metal catalyzer, therefore   environmentally friendly

For watery samples, an Aspiration Module with condensate trap is available.
   
   
Digest System K-437  
Digestion unit for Kjeldahl distillation

Temperature and time controlled digestion. Digestion temperature up to 450C The use of glass parts allows easy observation of the digestion process No escape of sulfuric acid or acid fumes, thus no nuisance odors in the workplace A digestion system for the safe and complete digestion of up to 20 samples at the same time.

The digestion tubes are heated evenly and digestion vapors are collected completely. The new maintenance-free aluminum block heating element guarantees equal digestion temperatures for all samples. Digestion time and temperature can be entered and read-out from a display.

Ordering information
K-437 Digest System, complete with a 20-place tube rack with 20 digestion tubes and a fume aspiration module.

For watery samples, an Aspiration Module with condensate trap is available.
   
   
Digest Automat K-438  
Digestion unit for Kjeldahl distillation

1. Temperature and time controlled digestion.
    Digestion temperature up to 450C
2. The use of glass parts allows easy observation
    of the digestion process
3. No escape of sulfuric acid or acid fumes, thus
    no nuisance odors in the workplace
4. Tube rack lift for secure tube handling

A digestion system for the safe and complete digestion of up to 20 samples at the same time. The digestion tubes are heated evenly and digestion vapors are collected completely.

The new maintenance-free aluminum block heating element guarantees equal digestion temperatures for all samples.

Digestion time and temperature can be entered and read-out from a display. The K-438 model is also equipped with an automatic controllable lift for inserting and removing of the sample tubes and thus set up as a digestion automat. The desired temperature profiles can be programmed directly on the display.

Ordering information
K-438 Digest Automat, complete with a tube rack lift, a 20-place tube rack with 20 digestion tubes and a fume aspiration module.

For watery samples, an Aspiration Module with condensate trap is available.

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