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Buchi 425 digestion block converts nitrogen to ammonium nitrogen; 412 scrubber neutralizes acid vapors, ensuring safe lab operation.
The Buchi 425 Destructieblock is a Kjeldahl digestion block designed for *sample material destruction* by converting all nitrogen content into ammonium nitrogen, enabling accurate *protein quantification* via the Kjeldahl method. Operating at up to 450 ºC, this unit supports essential biochemical analysis commonly applied in molecular diagnostics, protein assays, and biotechnology research.
Key technical specifications include:
Complementing the digestion block, the Buchi 412 Scrubber Unit effectively aspirates and neutralizes harmful acid vapors generated during digestion. This unit is critical for maintaining laboratory safety by protecting users and the environment from corrosive acid fumes released during sample processing. The scrubber comes equipped with appropriate glassware and a suction unit for optimized vapor extraction, making it indispensable in bioprocessing labs and biopharmaceutical production pipelines where chemical fume containment is mandatory.
Together, these units are widely used in biotechnology workflows, including *molecular cloning* and *synthetic biology research*, where precise nitrogen analysis combined with chemical safety is paramount. The integration of controlled sample destruction and acid vapor neutralization supports robust, safe, and compliant operation in advanced molecular and biochemical laboratories.
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With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Yes. Every verified supplier states which service partners cover the instrument, and we list that alongside the offer.
Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.
Two to six weeks, depending on refurbishment scope and whether calibration is included.
We ship to 38 countries. Crating and customs handling are quoted with the instrument.
Tell us what you need and a scientist finds it for you, usually within the hour.
Last updated 19 October 2026
