Cole-Parmer said that its UV-VIS spectrophotometer can produce precise results using any UV/Visible analytical method.
These spectrophotometers are used in many applications including DNA spectral measurements, protein molecular studies and ligand kinetics.
The benchtop instruments come with programmed GLP verification protocols.
Available models include single-beam and double-beam optics.
Double-beam spectrophotometers feature two detectors measuring sample and reference respectively and simultaneously for optimal accuracy.
Method parametric setup can be specified using simple on-board keypad controls or from a computer.
Users can store up to 30 methods in non-volatile memory.
Programmed methods include DNA/protein ratios (260/280nm or 260/230nm).
Users can specify up to 10 wavelengths for multiple sample analysis or use the GLP protocol to verify wavelength and transmittance.
These spectrophotometers also enable study of reaction kinetics up to 12 hours with sampling intervals down to 0.5 seconds; the post-run re-scaling and curve/segment targeting function can be used to refine rate calculations.
Spectral graphics can be viewed on a large backlit LCD.
The sample compartment accommodates up to eight cuvettes with path lengths up to 100mm.
Scan speed is adjustable from 75 to 1,000nm/min.
Date and/or time stamping allows for regulatory compliance and documentation.
Data can be transferred directly to the printer using parallel port or interfaced with a computer using RS-232 port.
