High Strength LED Spectrophotometer (110V/60Hz)

The internal computer system of the single machine state provides the functions of fluorescence intensity measurement, concentration direct reading, automatic zero adjustment, and automatic background deduction. The on-line state can be controlled by qualitative/quantitative software, and data acquisition and analysis can be performed using a USB2.0 interface. The normalization function of fluorescence value in quantitative analysis can eliminate the problem of unequal fluorescence value among different fluorescence photometers. The emission spectrum wavelength scanning menu offers 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 can use the standard curve method and undetermined coefficient method to detect sample concentration.

The high-brightness LED serves as the excitation light source, with an excitation wavelength range of 250nm to 600nm. The standard set of excitation wavelengths includes 365nm, 376nm, 392nm, and 405nm. The emission monochromator employs a C-T configuration diffraction grating design, with an emission wavelength range of 200nm to 650nm and a bandwidth of 10nm. There is an optional extension of the monochromator to 200-900nm. The emission wavelength accuracy is ±1nm, and the emission wavelength reproducibility is ≤0.5nm. The signal-to-noise ratio (S/N) is ≥90, the linearity is ≥0.995, and the repetitive peak intensity is ≤1.5%. The zero drift is ≤0.3 (within 10 minutes), and the upper limit change of the indicating value is ≤1.5% (within 10 minutes, for displaying values ≥50). The power supply options are 220V±22V and 110V±22V.

The instrument dimensions are 442×392×250mm. It offers two operation modes: fluorescence intensity and luminous intensity. Under the fluorescence intensity mode, fluorescence spectrum scanning, fluorescence kinetic analysis, and quantitative analysis can be performed.

The high-reliability cold light source has several advantages, including low background, low power consumption, low temperature, long life, high strength, and energy-saving with environmental protection.

At the 365nm excitation wavelength, the water Raman peak signal-to-noise ratio is greater than 90 (P-P), providing high detection sensitivity suitable for ultra-low concentration sample measurement.

The instrument provides 10 transmission spectrum scanning speed selections, including high-speed low-noise scanning and fine scanning. The ultrafast scan can reach 30,000nm/min, allowing a full scan to be completed in one second.

The intelligent pre-scanning function can quickly display the spectral information of unknown samples, automatically exclude the influence of other scattering peaks and frequency-doubling peaks, and determine the best measurement parameters and locate the fluorescence emission peak.

product information: