Chiral Raman spectrometer is a precision instrument used for studying molecular chirality, which greatly improves the signal-to-noise ratio and makes the detection of chiral molecules more accurate. This helps researchers to more accurately understand the structural information of molecules in the sample. It has low requirements for samples and does not require a large number of samples for effective analysis, which is particularly important for precious or difficult to obtain samples.

Can be used in multiple fields such as material identification, chemical analysis, quality control, etc., providing high-precision data support. It can play an important role in scientific research, education, and production processes. Especially handheld devices reduce reliance on large equipment, saving resources and time. At the same time, non-contact detection methods also reduce operational risks and enhance safety. In long-term use, chiral Raman spectrometers have the characteristics of easy maintenance and can bring high returns.

The measurement steps of chiral Raman spectrometer:

1. Preparation work

-Safety check: Ensure the safety of the laboratory area by using personal protective equipment such as laboratory clothing, gloves, and goggles. This is particularly important because lasers may cause harm to the eyes.

-Sample preparation: Prepare the sample to be tested and ensure that the surface of the sample is clean and flat to avoid measurement errors. Select an appropriate laser wavelength based on the properties of the sample to obtain a good Raman signal. For certain solid samples, it may be necessary to grind them into powder or use other processing methods to increase the contact area between the laser and the sample, thereby improving measurement accuracy.

-Instrument inspection: Check if the equipment is in good condition, turn on the power and preheat the equipment to the appropriate temperature, usually for about 1 hour. Simultaneously check whether the laser emits light normally and calibrate the wavelength of the laser; Also, check if the external light path is normal to ensure that the laser beam is correctly incident on the sample.

2. Set parameters

-Start software: Open the program operation interface on the computer desktop, log in to the corresponding user account, and start the software equipped with the Raman spectrometer.

-Select measurement mode and parameter settings: Choose different measurement modes and parameter settings as needed, such as excitation light source power, integration time, etc. Set the corresponding spectral wavelength range and step size in the software.

-Adjust focal length: Adjust the focal length between the sample surface and the laser focus through the microscope system to ensure good Raman signal. It is usually necessary to use spatial filters to control the volume of the measured sample.

3. Start measuring

-Place the sample: Place the sample to be tested in the sample chamber and adjust its position so that it is perpendicular to the laser beam to achieve better measurement results. When placing samples, be careful to avoid damage or contamination to ensure the accuracy of measurement results.

-Set appropriate parameters: Set appropriate parameters based on the characteristics of the sample and measurement requirements, including laser power, integration time, spectral range, etc.

-Start measurement and record data: Start the instrument to ensure that the laser and spectrometer are in normal working condition. Start measuring and record spectral data. Conduct multiple measurements as needed to ensure the stability and accuracy of the measurement results.

4. Data processing

-Spectral processing: The collected spectral data will be displayed in graphical form on the software interface. Process and analyze data, including baseline correction, peak position calibration, and other steps. Use corresponding software to analyze Raman peaks and determine their positions and intensities.

-Peak allocation: Compare the observed Raman peaks with known Raman peaks to determine the compounds in the sample.

-Spectral drawing: Based on the analysis results, draw a Raman spectrum to display the molecular vibration information of the sample.

5. End measurement

-Stop measurement: After completing the Raman spectroscopy measurement, stop the operation of the Raman spectrometer.

-Turn off the instrument: First turn off the computer, then turn off the laser power. Please note that the lock switch must be turned off first and turned counterclockwise to the vertical position. Turn off the switch button on the back of the left instrument and unplug the plug.