BioSpec-mini by Shimadzu Corporation

The BioSpec-mini spectrophotometer accurately measures protein concentration, allowing normalisation of sample concentrations prior to electrophoresis, an essential step before choosing a gel staining method for processing by the Xcise, and later analysis by mass spectrometry.

Protein samples of a known concentration can be measured automatically to create a calibration curve, equation and R2 value; samples of an unknown concentration can then be measured directly, and the BioSpec-mini will display the protein concentration as well as absorption figues.