is a versatile bench-top fluorimeter with single photon counting sensitivity
and an excellent water Raman signal-to-noise ratio. It combines measurements
of both high performance steady state fluorescence spectra and time resolved
phosphorescence decays. The fluoroSENS
is a fully integrated, computer controlled single photon counting fluorimeter
with comprehensive optional accessories.
The light source is a highly stabilised Xenon arc lamp with an optical stability
better than 0.1% with an auto-start facility in instrument power ON.
The excitation and emission monochromators are designed for high optical throughput
and each has a triple grating turret for flexible choice of gratings. This allows
the instrument to be optimised for several spectral ranges depending upon customer
requirements. Each monochromator is also fitted with continuously variable bilateral
knife edge slits allowing spectral pass band from 0.1nm to 10mm.
is fitted with several key spectroscopy features as standard. These include
a reference photodiode detector for corrected excitation spectra, corrected
emission channel, integrated order sorting filter wheel and filters as well
as an optical attenuator to allow signal optimisation.
As standard the large sample chamber is designed with high light gathering
optics to utilise as much of the sample signal as possible. AS standard the
comes with a singel cuvette holder on a positioning stage to ensure sample and
signal optimisation. Optional samples holders include for example: temperature
controlled options, four cell motorised turret, front face sample holder for
solid or power samples, magnetic stirrer, optical fibre adapters and a motorised
96 well plate reader.
uses a single photon sensitive photomultiplier detector. This detector can be
exchanged for different spectral ranges to ensure complete optimisation to customer
needs. Optional NIR detectors are also available.
uses a new class leading data acquisition system that provides all signal collection
in the one board. This includes a 100M counts per second photon counting module
as well as low noise 16 bit analogue-to-digital detectors for sample temperature
sensing and the reference detectors.
offers a transmission detector as a sample chamber option to allow the measurement
of sample transmission simultaneously with the fluorescence emission or excitation
measurements. This allows the user to directly monitor sample photo-bleaching
or aggregation etc that might otherwise invalidate the fluorescence measurement.
The system software contains all of the control, data collection, and analysis
functions to make high quality fluorescence measurements. It has the option
to save all experimental parameters and to define a quick load measurement function.
This function permits routine measurements to be set-up and stored for repeat
use. Full flexibility is offered to edit these functions.