optek AF46 dual-wavelength UV absorption analyser

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optek’s AF46 is a dual-wavelength UV analyser suited to monitoring protein concentrations (eg, monoclonal antibodies) in downstream biotechnology applications such as chromatography or filtration. Using two different wavelengths means the sensor is capable of detecting very low protein concentrations for accurate pooling and at the same time is able to monitor the whole elution peak with very high optical density (OD) using a second wavelength.

The high-precision, UV light absorption analyser is designed for inline operation to provide concentration measurements with good repeatability, linearity and resolution. Wavelength and optical path length can be individually configured to specific requirements.

Besides protein measurements, the sensor is often used to monitor nucleic acid contaminations of protein solutions. Due to the modularity, different optical path lengths (OPL) and wavelengths can be combined to measure any product absorbing in the UV range.