Don't forget to consider these points when choosing a molecular fluorescence spectrometer

Molecular fluorescence spectrometer is the use of the high temperature of the arc to directly vaporize and excite various elements in the sample, emit the characteristic wavelength of various elements, and then divide the light with a grating to become a spectrum
.
The eigenspectral lines of these elements are injected into their respective photomultiplier tubes through the outlet slit, thus forming a series of eigenspectral lines
of different elements.
After passing through the grating split, it becomes a spectrum arranged by wavelength, and the characteristic spectral lines of these elements are shot through the outlet slit into their respective photomultiplier tubes
.
Molecular fluorescence spectroscopy can provide fast, simple, repeatable, and more importantly, non-destructive qualitative quantitative analysis without sample preparation, and samples can be measured directly through fiber optic probes or through glass, quartz, and fiber; Raman scattering of water is very weak, and Raman spectroscopy is an ideal tool for studying biological samples and chemical compounds in aqueous solutions; Raman can cover the range of 50-4000 wavenumbers at a time, and can analyze organic and inorganic matter, while if the infrared spectrum is allowed to cover the same range, the grating, beam separator, filter and detector must be changed
.
The following points should be considered when purchasing a molecular fluorescence spectrometer: 1.
Spectral range: Different excitation wavelengths have different degrees for the detection of different substances, for example, at 785nm can show the map of organic molecules in the sample, so different detection samples need to choose different excitersors
.
Wavelength stability: stability is crucial for long-term detection, and will not have any effect on the general short-term detection results, because the fluctuations of the transmitter will not be very large, and the long-term excitation of the same wavelength of the transmitter can remain stable to have little
impact on the detection results.
2, resolution: the core of the instrument is the optical detection system, so the optical resolution is an important technical indicator of the result, the higher the resolution, the clearer the image, the more accurate the detection result, but the lower the sensitivity, the user needs to measure in many ways when choosing
.