Photometry Mode: Perform quantitative analyses in either absorbance or transmittance modes. Select from single up to 5 different individual wavelengths, nucleic acid/protein A260/A280 ratios and set up calibration curves for concentration measurements.

Time Scan: Perform kinetic measurements for time periods ranging from 10 seconds to >27 hours. Measurement intervals are factory preset and automatically selected when the scan time is set.

Wavelength scan: Perform a full spectral scan from 190 nm – 1100 nm at any of 9 incremental and preset selectable scan speeds starting from a high resolution 10 nm/min up to a maximum scan speed of 6,000 nm/min. Data is displayed as a graphical spectrum on which data analysis can be performed through the touchscreen interface with zoom, peak-valley, smoothing and other functions available through the easy to use menu interface.

• Concentration measurement
• Absorbance/Transmittance measurement
• Hexavalent Chromium, Nucleic acid measurement (nucleic acid purity, nucleic acid concentration, protein concentration calculation)
• Wavelength scan
• Time change
• Single and multi-wavelength photometry

Validation Functions

To ensure optimum instrument performance, self-diagnosis incorporating a number of parameters and wavelength calibration are automatically initiated upon start-up. Furthermore, the DS5 is equipped with a GLP/GMP feature for analyses requiring validation and auditing. Parameters such as wavelength accuracy, wavelength reproducibility, bandpass, baseline flatness, baseline stability and noise level can all be validated.

Data Handling

• Scale changing, Trace, Spectrum overlay, Peak & trough detection, Smoothing, Differentiation, and Area & rate calculating
• Internal memory, External USB, SD card
• File output in CSV and text format

Optional Visacle^® PC-controlled Software

Visacle^® offers all control, validation, data analysis and reporting functionality for DS5 in one PC-operated software package. Collected data is stored in a secure database, where it can then be organised and analysed, as well as exported in .txt, .csv or PDF format.

Visacle^® can be purchased as a CFR Part 11 compliant package for users requiring additional security. Features include:

• Configurable user profiles with secure login and e-signatures
• Audit trail logging of all actions taken
• Permission system to restrict actions and data access to authorised users