Products > Analytical > Fluorescence > QE-5000
QE-5000 measures singlet oxygen, a kind of ROS(reactive oxygen species). Singlet oxygen in aqueous, non-deuterated solutions as well as liquids, powders and various types of samples can be detected and measured. It uses a highly sensitive detector to recognize singlet oxygen below 0.01%, which enables accurate and high-speed measurement.
Capable of measuring 0.01% or less singlet oxygen's production quantum yield
Easy and direct spectrum observation of singlet oxygen(1,270nm) is possible
Measurement in aqueous solution for biochemical or biomedical fields available
Non-deuterated solvent measurement which was previously difficult with conventional methods is possible
Adopting a liquid-nitrogen-free cooling detector
Able to start measurement sooner - only 10 min. takes for preparation
Able to measure samples in liquid, powder, and various other forms
Detector
| Wavelength range | 300 ~ 1,600nm |
| Wavelength width per element | 1.4nm(300 ~ 950nm) / 1.9nm(900 ~ 1,600nm) |
| Number of light receiving element channels | 512ch |
| Element | array sensor |
| AD resolution | 16bit |
| Spectrometer optical arrangement | flat field type F=3, f=85.8mm |
Integrating sphere
| Material | spectralon |
| Size | φ 150mm hemisphere(HalfMoon) |
Light source
| Type | 150W Xe lamp |
| Excitation wavelength range | 250 ~ 800nm |
| Bandwidth | FWHM 5nm / slit 0.6mm |
| Sample deterioration prevention | automatic shutter secondary light cut filter (controlled by software) |
| Excitation wavelength control | automatic |
Laser excitation light source (option)
| Wavelength | 532nm / 808nm / 980nm etc. |
| Power | 1 ~ 500mW |
Measured data
1. allows measurement of singlet oxygen spectrum in aqueous solution
2. allows high sensitivity measurement of 0.01% or smaller quantum yields
3. allows easy measurements of singlet oxygen in non-deuterated solvents
Measurement of singlet oxygen spectrum in dye-sensitized reaction
Evaluation of photosensitizer e.g. singlet oxygen production ability
*Development of PDT reagent
Evaluation of solar cell materials
Evaluation of semiconductor purity
*PDT stands for photodynamic therapy, a cancer treatment method
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