Portable Raman/Microscopic Raman Spectrometer

PF-PRS-A785M is a portable/microscopic dual-purpose Raman spectrometer launched by our company. The Raman spectrometer host of this instrument can be separated from the video microscopy system. When conducting outdoor testing, only the lightweight Raman spectrometer host (which can work independently) needs to be carried. After the outdoor testing is completed, the host can be combined with the video microscopy system to form a microscopic confocal Raman spectrometer.

The PF-PRS-A785M uses a high-sensitivity TEC cooled CCD detector and high-throughput spectrometer, which gives the instrument better sensitivity, signal-to-noise ratio, and spectral resolution compared to similar products.

Microscopic confocal Raman spectrometerPF-PRS-A785M balances high performance with ease of use. The instrument can also measure white light absorption spectra, confocal Raman spectra, fluorescence spectra, etc. in micro Raman spectrometer mode.

The PF-PRS-A785M portable/micro Raman spectrometer adopts a modular structure design and is equipped with a high-sensitivity TEC cooled CCD detector.

Microscopic confocal Raman spectrometerUsage guide:

1、 Power on preparation

Check the power supply: Ensure that the power cord is connected properly and the voltage meets the requirements of the instrument, then turn on the instrument power switch.

Start software: Wait for the instrument self-test to complete, then start the corresponding Raman spectroscopy analysis software.

2、 Instrument calibration

Laser calibration: Follow the instructions in the instrument operation manual to calibrate the laser power and wavelength to ensure the stability and accuracy of the laser.

Spectral calibration: Use a standard sample with known Raman frequency shift for spectral calibration to correct the wavelength accuracy of the spectrometer.

Focal length calibration: By adjusting the focal length of the microscope, the laser beam is accurately focused on the surface of the sample to obtain the best spectral signal.

3、 Sample preparation

Select appropriate samples: Choose suitable samples based on research objectives and instrument requirements, such as solids, liquids, or gases.

Sample processing: Necessary processing of the sample, such as grinding, pressing, dilution, filtration, etc., to improve the uniformity and measurability of the sample.

Place the sample: Place the processed sample on the microscope stage and adjust its position and height to be at the focal point of the laser beam.

4、 Parameter settings

Excitation light source: Choose the appropriate laser wavelength and power, different samples may require different excitation conditions. Generally speaking, for most samples, commonly used laser wavelengths include 532nm, 785nm, etc.

Collection parameters: Set appropriate integration time, collection times, and other parameters to obtain Raman spectral signals with sufficient intensity and signal-to-noise ratio. An excessively long integration time may cause the sample to be exposed to too much laser radiation, resulting in thermal effects, while an excessively short integration time may lead to weak signals.

Grating setting: Select the appropriate grating as needed, with different gratings corresponding to different spectral resolutions and measurement ranges.

5、 Data collection

Preview spectrum: Before conducting formal collection, a spectrum preview can be performed to observe the Raman signal intensity and position of the sample, in order to further adjust parameters.

Formal collection: After confirming that the parameters are correct, the formal collection of Raman spectroscopy data begins. During the collection process, maintain the stability of the sample and instrument, and avoid vibration and interference.

Multiple collection: In order to improve the reliability and accuracy of data, multiple collections can be conducted and the collected data can be averaged.

6、 Data analysis and processing

Spectral recognition: Compare the collected Raman spectra with the spectra in the standard spectral library to identify the composition and chemical bond information in the sample.

Quantitative analysis: If it is necessary to quantitatively analyze the content of components in the sample, methods such as calculating peak area or peak intensity can be used.

Data processing: Use the data processing functions provided by the software, such as smoothing, denoising, baseline correction, etc., to process the collected spectral data to improve its quality.

7、 Shutdown steps

Save data: Before shutting down, ensure that the collected data has been saved to the designated folder to prevent data loss.

Close the software: First exit the Raman spectroscopy analysis software, and then turn off the power switch of the instrument.

Cleaning the instrument: After turning off the power, perform appropriate cleaning and maintenance on the instrument, such as cleaning the sample stage, lens, and other components, to extend the service life of the instrument.