RAMAN Spectrometer, Dual Channel, Portable, MAS 6083
Optical components and test samples
The setup consists of a laser () for excitation with a power of 0–100mw, two 532 nm Raman probes for excitation and collection, two custom-made optical fibers (NA=0.1), and a multi-field-of-view Raman spectrometer. Single and batch processing of both types of samples through special optical settings. The samples consisted of paracetamol, benzoic acid, salicylic acid purchased from Shandong Yusuo Chemical Technology Co.
Measurement procedure
In order to perform parallel determinations, the samples must be
Dual-channel Raman spectroscopy measurement system
The dual-channel Raman spectrometer’s online inspection system, as illustrated in Fig. 6a, incorporates a Raman probe designed according to Fig. 1. The laser is introduced via the combining end of the Y-fiber, subsequently splitting the fiber into two distinct beams. These beams are individually channeled to the excitation end of the Raman probe. Here, they are collimated by a collimating mirror (CM) to produce parallel light. This light is then reflected through a narrow-bandpass filter (NBP:
Conclusion
A novel set up for on-line multi-channel Raman detection allows parallel, high-throughput acquisition of Raman spectra in multiple probes. The advantage of this set up over microscope setups and multi-table Raman spectrometer setups is the ability to perform on-line multi-channel Raman spectroscopy through custom fiber optics. It has the advantages of high throughput detection, small size, shorter detection time and lower cost. A dual-channel Raman spectrometer was designed by adjusting the
Funding
This study was supported by the National Key Research and Development Program of China(2023YFC3710500) and the Key Research and Development Project of Anhui Province (2023t07020015).