The extinction of the pink complex is measured against a blank and evaluated.
The photometric determination is carried out at 560 nm or the next closest wavelength, depending on the photometer type.This is a method for the determination of Cetamine Filming Amines (CFA) in boiler water, boiler feed water, condensate and other systems. In acidic solution CFA form a pink colored complex with Rose Bengale that is color stable for 1 hour. Cetamine Test Kit without Meter The reagent blank value is included in the calibration data.