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Kjeltec™ 8000 series - Automated protein analysis

Fully automated distillation units for protein analysis

The Kjeltec™ 8000 series consists of three models: the 8100, 8200 and 8400 for simple and safe distillations with different levels of automation.

The Kjeltec 8400 in combination with 8420 or 8460 sampler and Tecator AutoLift digestion units provide the ultimate in automated Kjeldahl analysis. The Kjeltec 8200 Distillation Unit provides semi-automated distillations. The possibility to pre-program sample dilution, alkali and receiver solution addition, distillation time and tube drain supports the production of accurate results, independent of operator.

 

Kjeltec™ distillation units

8100

8200

8400

Automatic dilution, alkali addition, distillation and tube emptying provide ease of use. Variable output steam generator broadens application area to other volatile components. Official and accurate procedures (ISO, AOAC, EPA, DIN) simplify validation.

Patented SAfE* feature for safe distillation of tubes with salt cakes. Built-in safety systems for user protection. Self adjusting cooling water control saves water and reduces costs. Bellows pumps for accurate dispensing of reagents. Alkali resistant plastic splash head & tube emptying vessel for long lifetime.

Receiver solution addition, automatic safety door, external titration connection (Mettler, Metrohm, Schott, etc.) and modularly upgradeable to analyser and sampler system.

 

Titration, calculation and reporting. Upgradeable to 20 or 60 place auto sampler for fully unattended operation. Interchangeable burette for easy titrant exchange.

 

 

Ethernet connection eliminates communication problems with printers and balances. Touch sensitive colour display. Complete PC control of all registration and reporting through optional data management software - Compass.

 

 

Autosampler system 8420: 1 rack, 8 or 20 tubes, 250 & 400 ml

Autosampler system 8460: 3 racks, 8 or 20 tubes, 250 ml & 400 ml

 

Upgradeable

Optional

Mandatory *

What can automated chemical analysis do for you?

Contact your local FOSS representative to discuss possibilities

Parameters

Kjeldahl Nitrogen/Protein, ammonium, TKN etc

Sample types

Raw materials and finished products in Food, Feed and Agriculture
Kjeldahl method

Method/principle of analysis

1) The sample is first digested in strong sulfuric acid in the presence of a catalyst, which helps in the conversion of the amine nitrogen to ammonium ions. 2) The ammonium ions are then converted into ammonia gas, heated and distilled. The ammonia gas is led into a trapping solution where it dissolves and becomes an ammonium ion once again. 3) Finally the amount of the ammonia that has been trapped is determined by titration with a standard solution, and a calculation is made.

Auto Sampler

Benefits of automation

An optional 20 or 60 place Autosampler provides the benefits of automation even at lower sample throughputs. Just load your sample racks directly from the digestion block and Kjeltec™ will perform accurate analysis unattended for more than four hours.

Kjeltec autosampler

The ultimate distillation solution

Accurate bellows pumps and a high-precision refillable burette give long term stability in reagent delivery. Cooling water is controlled automatically and a temperature sensor stops the unit if the distillate is too hot. Sensors monitor tube in place, safety doors, reagent levels, water level and over-pressure in the steam generator providing safe conditions for users. SAfE (Steam Addition for Equilibration) technology reduces the exothermic reaction between alkali and acid, removing the need for manual pre-dilution of samples.

See the Kjeltec™ 8100 in action

The Kjeltec™ 8100 Distillation Unit provides a simple and reliable solution for safe, semi-automatic distillations.

See the Kjeltec™ 8200 in action

The Kjeltec™ 8200 Auto Distillation unit is the ultimate solution for safe, automatic distillation. Accurate bellows pumps give long term stability in reagent delivery. The unit is equipped with sensors for safety door, tube platform, distillate temperature as well as level and over-pressure sensors for the variable output steam generator.

See the Kjeltec™ 8400 in action

Cooling water flow is controlled automatically and a temperature sensor stops the unit if the distillate is too hot. Sensors monitor tube in place, safety doors, reagent levels, water level and over-pressure in the steam generator providing safe conditions for users. SAfE technology reduces the exothermic reaction between alkali and acid, removing the need for manual pre-dilution of samples. A fast tube draining system removes the need for handling of hot reagents.

Embedded or optional software

The Kjeltec 8400 analyser has two different software systems - embedded software for operating on a daily basis and an optional PC application, Compass (Composition Analysis Software System), for managing manages the Kjeltec 8400 analyser, and sampler system if present.

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