Solution «Kjeldahl Throughput»

Nitrogen determination at high throughput and full automation

You cope with ever increasing sample loads for nitrogen determination according to Kjeldahl, with rising costs per analysis and requirements for thorough documentation. We offer a solution for analyzing up to 120 samples in a one-person working day, providing a maximum degree of automation in sample and data processing.

Tabs

Overview

Benefits

More samples per day and yet flexible

Unprecedented sample throughput is achieved, with the minimal number of instruments due to accelerated digestions and perfect synchronization between the KjelDigester K-449 and KjelSampler K-377.
Fully automated process from sample preparation to titration for unattended operation. Direct data exchange with balances, bar code readers, printer, LIMS and PC.
Quick determination of priority samples using ‘Express Positions’ even when complex sequences are being operated. Manual single sample operation is possible at any time.

Fully compliant

Excellent reproducibility by thoroughly programmable procedures including both colorimetric and potentiometric titration in compliance with AOAC, EPA, ISO, EC and DIN regulations.
Different access levels of authorization, thorough reporting and tracked data manipulation following GLP guidelines.

Comprehensively safe

Environmentally sound and safe operation. Automated and effective fume transfer, neutralization and cooling of harmful digestion fumes and automatic sample transfer by the KjelSampler K-377 to the KjelMaster K-375.
Optimal operator protection. Automated and supervised processes, tight sealings and protection shields.

Voice of the customer

“The KjelDigester helps us to get results faster and it is the ideal companion to our automated Kjeldahl system. The reliability of these instruments is essential for our service laboratory, thus we really appreciate the great support from the BUCHI service team.”

Mrs. Barbara Vogel, Nutrient Analysis, Laboratory Manager

UFAG Laboratorien AG, Switzerland

Scope

Service & Support

Comprehensive list of reference applications
Customized application support
Authorized IQ, OQ and PQ documentation
Useful tools for application development
Practical workshops, trainings and seminars
Preventive maintenance including IQ/OQ/PQ
Minimize downtime thanks to our service hotline

Applied products

KjelMaster K-375

KjelDigester K-446/K-449

Scrubber K-415

KjelSampler K-376 / K-377

Accessories

Options

Suction module types

Two dedicated suction modules can be selected; one for aqueous samples, and the other a standard suction module appropriate for general applications.

Condensate vessel

Easy evaporation of water samples (TKN) is possible using the dedicated TKN vessel with stopcock, which is available alongside the standard 1 L condensate vessel

Scrubber ECO models

With the automatic cooling water control (^ECOmodels) the running costs and water consumption can be reduced.

For specific reactions

The reaction step absorbs specific reaction gases e.g. NO_x

Glass splash protector

With its extensive know-how BUCHI provides state-of-the-art glass parts like the splash protector. The whole distillation process is visible for easy method development and process monitoring.

Plastic splash protector

This splash protector is made of glass fiber reinforced polypropylene. It is the choice for high throughput analysis due to its long lifetime.

Potentiometric electrode

Measuring the pH is an accurate method to detect the endpoint of a titration. BUCHI’s gel electrode is easy to handle, maintenance free and suitable for routine use.

Colorimetric sensor

The outstanding feature of the colorimetric sensor is its long lifetime. It does not require calibration and is recommended for applications that require detecting the color change of an indicator at the titration endpoint.

KjelSampler K-376

Compact sampler with 24 sample positions to fully automate the Kjeldahl analysis with the KjelMaster K-375. Transferring the sample with steam overpressure to the distillation unit is unique and offers outstanding money and time saving benefits.

KjelSampler K-377

Compact sampler with 48 sample positions to fully automate the Kjeldahl analysis with the KjelMaster K-375. The sample transfer with steam overpressure,as well as the independent rack trays for continuous sample loading are unique time saving benefits.

IQ/OQ Documentation

Installation/Operational Qualifications documentation often important when compiling with GMP/GLP.

KjelLink PC software

The intelligent PC software KjelLink save time and costs.

Consumables for Kjeldahl

BUCHI offers not only high quality instrumentation but also approved consumables that are tested for the most common reference applications.

Kjeldahl Tablets, weighing boats, indicator, buffer solutions, potassium chloride and reference substances for fast digestions, proper operation and reliable qualification are available.

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