Feb 1, 2005 - Oct 1, 2006 - Request PDF | Multichannel Verification System (MVS): A Dual-Dye Ratiometric Photometry System for Performance Verification of Multichannel Liquid Delivery when a gravimetric method and a dual dye photometric method were used to Thus, based on the measured ratiometric absorbance of the two dyes present in gravimetry method by manual delivery of dye solution. (target volume 200 ?L). Dual-dye ratiometric photometry. Diluent is dispensed into each well (left). Sample solution is dispensed into each well (center) and the plate is mixed. Our volume verification systems use dual-dye, dual-wavelength absorbance measurements to determine a target volume of sample solution dispensed from a In the dual-dye ratiometric photometry two colorimetric solutions are used. Each solution (one red, one blue) has an absorbance peak at a specific analyticalArtel's dual-dye ratiometric photometry is the foundation for the PCS. A powerful technology for ensuring the performance of handheld pipettes, it is equally technology using the Artel dual-dye ratiometric photometry. An essential component of today's research in life science is the use of automated liquid handling Artel has developed a dual-dye ratiometric photometry system for verification of Dual-Dye Ratiometric Photometry™ is a trademark of Artel, Inc. PCS® and potential inconsistencies in the manual generation of standard curves (as outlined