 Distillation equipment based on the Kjeldahl method is
advantageous in this respect as its key component is a
steam distillation system. This type of sample
preparation is needed for many different analysis
procedures. Over recent years B?chi Labortechnik AG has
fully redesigned its Kjeldahl systems, so that they now
enable much more than only traditional protein
determination.
A new application note describes the use of the
Distillation Unit K-355 for the determination of Free
Cyanide (CNF) and Weak Acid Dissociable Cyanide (CNWAD)
in waste water according to the modified method EPA 9010
C/335.2, using the Pyridine-Barbituric Acid
spectrophotometric method according to the method EPA
9014.
Further interesting applications in the fields of waste
water and sewage sludge include the determination of
volatile acids, the content of phenols, COD (Chemical
Oxygen Demand) or ammonium content. These and many other
applications in the context of environmental analyses are
available free of charge on request from B?chi
Labortechnik AG in Switzerland.
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