Compact LED Spectrophotometer 250-600nm (110V/60Hz)

The internal computer system in single machine state provides functions including fluorescence intensity measurement, concentration direct reading, automatic zero adjustment, and automatic background deduction. In the online state, qualitative/quantitative software can be used to control the system, and data acquisition and analysis are enabled through the USB2.0 interface. The normalization function in quantitative analysis eliminates the issue of unequal fluorescence values among different fluorescence photometers. The emission spectrum wavelength scanning menu includes features such as map scaling, multi-map comparison, Atlas operation, peak valley detection, peak area calculation, and 1-4 order derivative spectral functions. The quantitative test menu allows for the use of the standard curve method and undetermined coefficient method to detect sample concentration. The excitation light source is a high brightness LED with a wavelength range of 250nm ~ 600nm. The emission wavelength range is 200nm ~ 650nm with a bandwidth of 10nm.

Other technical specifications include: - Emission monochromator: C-T configuration diffraction grating - Emission wavelength accuracy: ± 1nm - Emission wavelength reproducibility: ≤ 0.5nm - S/N ratio: S/N≥90 - Linearity: ≥0.995 - Repetitive peak intensity: ≤1.5% - Zero drift: ≤0.3 (within 10min) - Upper limit change of indicating value: ≤1.5% (Within 10 minutes) (displaying value ≥50) - Power type: 220V±22V; 110V±22V - Dimensions: 442×392×2502 - Operation modes: fluorescence intensity and luminous intensity

The high reliability cold light source features low background, low power consumption, long life, high strength, and environmental friendliness. At the 365nm excitation wavelength, the water Raman peak signal to noise ratio is greater than 90 (P-P), making it suitable for ultra-low concentration sample measurement. Additionally, it offers 10 transmission spectrum scanning speed selections, including high-speed low-noise scanning and fine scanning. The ultrafast scan capability of 30000nm/min allows for a full scan to be completed in one second.

The system also includes intelligent pre-scanning, enabling the quick display of spectral information for unknown samples. It can automatically exclude the influence of other scattering peaks and frequency doubling peaks, determine the best measurement parameters, and locate the fluorescence emission peak.

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