| Customization: | Available |
|---|---|
| After-sales Service: | Supply |
| Warranty: | 1 Years |
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The GD-F89 fluorescence spectrophotometer is a valuable precision analytical instrument, mainly used to detect the fluorescence properties of substances. Its working principle is based on the phenomenon of photoluminescence, which is to illuminate the sample to be tested by emitting light of a specific wavelength through an excitation light source. The molecules in the sample absorb the energy of photons and are excited to a high energy state, and then emit fluorescence in the process of returning to the ground state. The instrument accurately measures parameters such as the intensity, wavelength and lifetime of the fluorescence. Based on these data, researchers can not only qualitatively identify substances, determine their composition and structure, but also perform quantitative analysis through the correlation between fluorescence intensity and substance concentration. In the biomedical field, it helps detect the interaction of biomolecules and drug metabolism; in materials science, it is used to study the luminescence properties of new fluorescent materials; in environmental monitoring, it can detect trace pollutants. With its advantages of high sensitivity and high selectivity, the GD-F89 fluorescence spectrophotometer provides key technical support for research and production in various fields.
High precision and high reliability: The horizontal slit optical design has excellent luminescence detection efficiency and ultra-high signal-to-noise ratio, high sensitivity, and the Raman peak signal-to-noise ratio of water is greater than 350:1 (P-P) or 1500: (RMS); 18000:1 (BG). When using a standard 10mm square sample cell, only 0.5mml sample volume is required to meet the test requirements. Fast scanning speed and high sensitivity: The wavelength scanning speed can reach 60000nm/min, and the three-dimensional fluorescence spectrum scanning of the sample can be easily achieved within 1 minute, and the fluorescence characteristics of the sample can be fully understood. It has 17-speed multi-speed gain continuous adjustment (0-1000V).
Core components: The instrument's xenon lamp light source and photomultiplier tube detector and other key components are all high-quality original components from Hamamatsu (HAMAMATSU) of Japan. The 150W high-intensity, long-life (more than 2000 hours) de-ozonizing gas lamp and R928 red-sensitive photomultiplier tube from Hamamatsu, and the French imported grating for the light shed provide sufficient light intensity signal and detection sensitivity for the instrument in the spectral range of 200nm to 900nm.
Convenient and easy to use: a variety of measurement accessories, including fluorescence quantum yield measurement accessories, film sample and powder sample measurement accessories, fiber optic fluorescence measurement platform, up-conversion fluorescence measurement accessories, semiconductor constant temperature sample pool accessories, 200uL microcentrifuge tube measurement accessories, fluorescence sample semi-automatic injection accessories, etc. The rich accessories greatly expand the application range of the instrument, with built-in frequency doubling filters that can filter frequency doubling peaks in multiple bands; built-in programmable light gate device, specially designed for the measurement of samples that are easy to react to light or have unstable fluorescence signals, and improve the accuracy of fluorescence analysis by unifying the sample excitation detection rhythm.
| Excitation Source | 150W xenon lamp(Hamamatsu) |
| Excitation Wavelength | 200nm~900nm |
| Emission Wavelength | 200nm~900nm |
| Excitation Slit | 1nm/2nm/5nm/10nm/20nm |
| Emission Slit | 1nm/2nm/5nm/10nm/20nm |
| Wavelength Accuracy | ±0.4nm |
| Wavelength Repeatability | ≤0.2nm |
| Signal-to-Noise Ratio | S/N≥350(P-P) S/N≥1000(RMS) |
| Limit | ≤5×10-11 g/ml(Quinine Sulfate Solution) |
| Linearity | γ≥0.995 |
| Peak Repeatability | ≤1.5% |
| Wavelength Scan Speed | Multi-speed Level, Maximum at 60000nm/min |
| Minimum sample size | 0.5mL (Using a standard 10mm square sample cell) |
| Octave filter | Build in Octave filter |
| Photometric Quantity Range | -9999 ~ 9999 |
| Response Time | 0.02/0.1/0.5/1/2/4/8 s,Auto adjust |
| Data Transportation | USB2.0 |
| Power | 200W |
| Power Source | 110-240V AC.50/60Hz |
| Instrument Dimension | 610×460×365(mm) |
| Weight | Net Weight:21kg Gross Weight:26kg |
Ultra-high signal-to-noise ratio is used to measure 0.1ppb concentrations
Using the fluorescence characteristics of , using monoclonal immunoaffinity columns as separation methods, the detection can be achieved with a fluorescence spectrophotometer. Due to its high pathogenicity, the limit standards of domestic and foreign regulatory agencies have reached the ppb level, and not all fluorescence instruments can meet its detection sensitivity requirements. With its ultra-high signal-to-noise ratio, the LB-F98 fluorescence spectrophotometer can easily achieve concentration (0.1ppb level) detection.
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