Vitamin B12 as a trace element belongs to the biologically important chelate formers. The basic unit consists of a corrin ring with cobalt as a central atom. Cobalt is sixfold coordinated by four nitrogen atoms, one cyanide and a dimethylbenzimidazol group. <br> The existing detection procedures are mainly microbiological methods (1), but also HPLC and thinlayer chromatography, all of which are associated with a high amount of time and instrumentation. With the present test kit it is possible, to determine vitamin B12 quantitatively in vitaminated food (2) in a significantly faster way (2.5 to 4 hours inclusive sample pretreatment) compared with a conventional microbiological assay (24 to 48 hours).
This test is designed for detection of substances within food products. This is not a medical device and is not intended to diagnose or prevent any diseases or other conditions.