Raman Probe and Flow Cell

Short description

Compatible testing accessories for liquid online Raman analyzers and benchtop Raman spectrometers.


Technical highlights

• Optical probe technical highlights:

• High collection efficiency: special optical design ensures high collection efficiency;

• Environmental adaptability: withstands high and low temperatures, high-pressure, and is suitable to harsh and extreme reaction conditions;

• Flexible customization: The interface, length, and material can be customized according to monitoring needs.

• Flow cell technical highlights:

• Multiple materials available: A variety of materials are available, and special optical design ensures maximum collection efficiency.

• Different interface specifications: Interfaces of different specifications can connect flow cells to pipelines of different specifications.

• Suitable for high temperature, high pressure, strong acid and strong alkali systems, with good sealing and convenient connection


PR100 Raman probe is a conventional laboratory Raman probe for off-line analysis, which can be used for three excitation wavelengths: 532 nm, 785 nm, and 1064 nm. The probe is compact and lightweight, suitable for routine measurements of liquids and solids in conjunction with a sample chamber. It can also be used with a microscope for Raman microspectroscopy. PR100 can be combined with a flow cell and a side-view reactor for online reaction monitoring.


The PR200/PR201/PR202 immersion probes are suitable for monitoring small-scale reactions in the laboratory. They can be directly inserted into reaction flasks or laboratory-scale reactors for in-situ monitoring of the reaction process. An optimized version for detecting suspension/stirred solutions is available, effectively reducing interference in liquid signal detection.

The PR200/PR201 probe tubes are available in various materials, particularly suitable for monitoring chemical reaction systems under extreme conditions, difficult sampling, or unstable sample conditions. PR200 is compatible with small interfaces, while PR201 is suitable for medium-sized interfaces.

PR202 is suitable for online monitoring of various components in bio-fermentation reactors, and the probe part can be detached for high-temperature sterilization treatment. The probe tube interface is PG13.5.


The FC100/FC200 flow cells can be integrated with the PR100 Raman probe and connected to the reaction pipeline.
When liquid material flows through the flow cell, the collection of spectral signals can be completed in a few
seconds. This is suitable for continuous flow reaction systems or kettle-type reactions with automated samplers, enabling online monitoring.


Product specifications


       PR100 optical probe                                                    PR200 immersion probe                                                                                   PR201 immersion probe                                                                                  PR202 immersion probe



1  ert (137)  ert (138)  ert (135)
Probe tube material  304 stainless steel C276 alloy, 304 stainless steel, 316L stainless steel, Monel alloy, or TA2    optional C276 alloy, 304 stainless steel, 316L stainless steel, Monel alloy, or TA2    optional 316L stainless steel, resistant to SIP/CIP sterilization
Outer diameter 10 mm 10 mm 16 mm 12 mm
Probe tube length 80 mm 350 mm (contact Sales for othercustomized length of 100 mm ~ 350 mm) 270 mm (contact Sales for othercustomized length of 100 mm ~ 1000 mm) 320 mm (contact Sales for othercustomized length of 120 mm ~ 320 mm)
Spectral range 200 ~ 3900 cm-1  (532 nm or 785 nm excitation wavelength) or 230 ~ 3100 cm-1 ( 1064 nm excitation wavelength)
Sample type Any sample type L (clear liquid) or S (opaque or turbid liquid) or C (slurries or semi-solids)
 Fiber optic cable 1.3 m PVC jacketed as standard, 3 m or 5 m length are optional 5 m as standard , 10 m, 50 m or 100 m length are optional; PVC jacket asstandard, PU or silica gel jacket are optional 5 m as standard , 10 m, 50 m or 100 m length are optional; PVC jacket asstandard, PU or silica gel jacket are optional 5 m as standard , 10 m, 50 m or 100 m length are optional; PVC jacket asstandard, PU or silica gel jacket are optional
Temperature range 0 ~ 100 ºC –40 ~ 200 ºC –40 ~ 150 ºC –30 ~ 200 ºC
Maximum pressure ambient condition 30 MPa 30 MPa 1 MPa
Corrosion resistance Not resistant to corrosive liquid Resistant to strong acid/alkali, hydrofluoric acid (HF), and organic solution Resistant to strong acid/alkali, hydrofluoric acid (HF), and organic solution pH range: 1- 14
Optical fiberconfiguration 100 μm excitation fiber, 200 μm collection fiber, N.A. 0.22
Filter efficiency OD6 (contact Sales for other options)
Connection interface FC and SMA

Product specifications

Appearance  FC100 flow cell    FC200 flow cell
ert (140) ert (141)

FC100 is a small-sized flow cell for online  reaction monitoring in laboratory. it can be connected to a microchannel reactor via a sampling loop.

FC200 is a medium-sized flow cell for online reaction monitoring in laboratory. It can be  connected to a flow reactor via a sampling loop.
Inner diameter of flow 3 mm (contact Sales for other options) 8 mm (contact Sales for other options)
Material C276 alloy, 304 stainless steel, 316L stainless steel, Monel alloy, TA2, or PTFE optional
 Interface Φ6, 1/8’’, 1/4’’ , or 1/ 16’’ optional Φ6, Φ8, Φ10, 1/8’’, or 1/4’’ optional
tube fitting (steel tubing ) or barbed fittings (hose) optional
Temperature range –40 ~ 200 ºC –40 ~ 200 ºC
Maximum pressure 1 MPa 4 MPa
Anti-corrosion Resistant to strong acid/alkali, hydrofluoric acid (HF), and organic solution