Overview
The 754N UV-Visible Spectrophotometer is an analytical instrument of the SHANGFEN brand. It adopts microprocessor control technology to qualitatively and quantitatively analyze substances in the ultraviolet-visible Light spectrum region of 200~ 1000nm. It is a multi-purpose analytical instrument necessary for conventional laboratories.
Features
1. The holographic blazing grating monochromator has the advantages of high wavelength accuracy, good monochromaticity and low stray light.
2. Equipped with 7-inch color touch screen, good human-machine interaction interface.
3. The concentration test method supports linear regression method and coefficient method.
4. With USB interface, large capacity memory can store up to 30 concentration Linear dispersion.
5. Using microcomputer measurement system, T-A conversion accuracy is high, support automatic adjustment of 0% T and 100% T, concentration factor setting and concentration direct reading.
6. High measurement accuracy, good reproducibility and Stability.
7. Using automatic light gate technology, no blackbody is required, which can protect the photoelectric Sensor.
8. With dynamic time scanning, time setting, multi-language switching and other functions.
9. Built-in thermal printer, standard 1cm Colorimetric dish holder.
Principle
The instrument works based on the absorption characteristics of ultraviolet-visible light by substances. The composite light emitted by the light source is separated by a monochromator (using a holographic blazing grating) to obtain monochromatic light of a specific wavelength. This monochromatic light passes through the sample solution under test and is selectively absorbed by the substance to be tested. The transmitted light is received by the Detector (imported Photocell, photovoltaic cell) and converted into an electrical signal, which is processed by a microcomputer measurement system. Finally, the light transmitance (T), Absorbance (A) or concentration (C) of the sample are calculated, so as to realize the qualitative and quantitative analysis of the substance.
Applications
Conventional laboratory qualitative analysis, quantitative analysis
