DiProbe Technology
When coupled to an FTIR the newly introduced DiProbe technology provides an unique capability for monitoring smaller scale reactions taking place in less accessible reactors which may be located in tighter spaces than state of the art remote FTIR probes. It is highly resistant to attack by corrosive or abrasive chemicals and enables direct measurement of reactants, intermediates, by-products and products formed or consumed during a chemical reaction. Additionally the very small sample probe diameter allows sampling directly in containers with narrow openings.
Features of the DiProbe:
- Diamond ATR element
- 2 x 45° internal reflections
- Transmission from 3 µm to 18 µm
- Diameter: 6mm
- Hastelloy shaft
- Chemical inert sealing
- Shaft length: up to 50cm
- Fiber cable length: up to 5m; SMA connectors
- Temperature Range: up to 100°C
Product Features |
Benefits |
ATR based technology |
Allows spectra to be collected from a small volume of liquid and eliminates sample quench and pretreatment |
In-situ capability |
Eliminates off-line sampling and greatly increases the amount of data that may be collected per unit time |
DiProbe sensors can be interfaced to a fiber length of up to 5m |
Affords outstanding flexibility when positioning instruments in laboratories, pilot plants and plants. |
High throughput single fiber technology is used |
Up to 4 Probes can be coupled to 1 FTIR |
Chemical compatibility of a diamond ATR element |
Allows reaction/process monitoring in challenging chemical environments at high and low temperature and at high pressure |
Probe body and seal constructed from Hastelloy and inert brazings |
No corrosion whatever the chemical environment |
6mm probe head size |
Enables to interface the probe to reactors where space or volume is limited |
Probe availability in overall lengths of 5 to 50cm |
Permits integration of probes into all kind of vessels, pipes, flow cells and drain valves. |
Reproducibility |
Consistent spectral performance over time |
High flexibility |
Alignment and optical throughput are assured whatever the conformation of the fiber cable |
Low weight |
Ease of use |
No purge required |
Since reduced path length of the IR radiation traveling through, the absorption bands due to water vapor and CO2 are diminished. |
Affordable price |
Affordable Price: Existing FTIR Equipment can be used |
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DiProbe Sensitivity (metering of ethanol with acetic-acid-ethyl-ester) |
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Spectral Grade Fiber Cables
- Structure: core/clad
- Composition: AgCl/AgBr
- Diameter: 0.9mm/1mm , others on request
- Refractive index: 2.2
- Numerical Aperture: 0.5
- Max. Lengh: 5m
- Attenuation @10µm: 0.2 dB/m
- Attenuation @5µm : 0.4 dB/m
- Attenuation @3µm : 0.8 dB/m
- Connectors: SMA type
- Housing: PEEK
- Cabling: Single fiber or bundle
- Temp. Range: 10°C to 80°C, in special housings:-100°C up to +200°C
- Bending radius: > 15cm
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