Process Record Slide (PRS)

Since immunohistochemistry was conceptualized and implemented by MD Albert Coons in 1941, the IHC staining process has had NO SCIENTIFICALLY BASED PROCESS QUALITY CONTROL  for 80 years. MANY RECENT studies discovered that double-digit percentage
errors due to the staining process were commonly found in many laboratories throughout the world. 

Process Record Slide (PRS) is innovated with a purpose to provide economically
viable 100% process QC slide in Immunohistochemistry (IHC) Staining.  

So far, histologists or pathologists cannot objectively tell how well an IHC slide is stained because there has been no calibration even in the most advanced automatic staining machines available in the market. Therefore, in theory, each IHC staining should need an on-slide process quality control so that pathologists can confirm objectively each staining is done to an acceptable standard.

PRS is registered in FDA as a calibrator surrogate, manufactured according to ISO13485 with CE marking. 

PRS is the ONLY control slide in the world that can provide the sensitivity of primary antibodies as well as how well the secondary antibodies are expressed in terms of density of the coloration.