Büchi’s range of KjelFlex K-360 digestion and distillation instruments can be matched to individual or changing needs at any time. By means of four add-on modules the customer can adjust the K-360 according to each individual application – before or after purchase.
These state-of-the-art units provide accurate and highly reproducible results with an excellent recovery rate. It can be used for a variety of applications in analytical laboratories in food and beverage, feed, agricultural, environmental, chemical and pharmaceutical industries. In addition to the traditional applications (Kjeldahl, Devarda, TKN), the K-360 can be used for an extended range of accepted distillation methods, including those with regulated steam output or requiring the dosage of strong acids. Examples include alcohol- and, phenol distillation and the determination of formaldehyde content, sulphur dioxide and volatile acids. These and many other applications are available free on request from Labotec, Büchi’s representative in southern Africa.
The design of the splash protector is a crucial factor in getting highly reliable analytical results, when determining protein or nitrogen according to the Kjeldahl method. With the K-360 Büchi offers a choice of two splash protector types: the standard version in glass or a new adaptation made from glass-reinforced polypropylene. The glass edition features a transparent distillation zone for easy visual monitoring; the polypropylene version by its durability and extended life.
The basic configuration provides automatic dosaging of boric acid, NaOH and water as standard. If needed, the unit can be equipped with an additional acid-resistant pump for the dosage of stronger acids. The application range is extended by a number of non-Kjeldahl applications, such as phenol distillation and the determination of formaldehyde content, sulphur dioxide and volatile acids.
By connecting an external titrator (for example from Mettler, Metrohm, Schott, Radiometer), the K-360 capabilities are extended to provide an automatic system for nitrogen and protein determination. With such a configuration manual work is reduced to an absolute minimum. The titration starts automatically when the distillation is finished. After titration the contents of the sample tube and receiving vessel are drawn off automatically.
Besides the unique modularity the new K-360 offers a variety of additional features: storage capacity of up to 50 customer-specific methods or 500 results, password security, data printout using a USB interface, multilingual software, and numerous safety functions.