It is therefore employed for measurement of proteins, since cuprous ion is produced when proteinreacts with alkaline Cu.sup.2+ (biuret reaction).
The BCA solution is supplemented with a detergent (for example , 0.1% -1.0% w/v sodium dodecyl sulfate (SDS) ), or other additives, for example bleach or lytic enzyme (s) (such as lysozyme and/orlysostaphin).