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Analytical Science
Stopped-Flow Spectrometer
RX2000 Rapid Mixing Stopped Flow-Unit
Ideal as a teaching aid, the RX2000 is a portable, high performance stopped-flow accessory to enable kinetic measurements of reactions at least a thousand-fold faster than those run by manual methods.
Compatible with a wide range of UV-Vis spectrometers and fluorometers from major manufacturers, the RX2000 is built from chemically-resistant materials with an armoured umbilical for robustness.
Brand: Applied Photophysics
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Warranty Details
- Save sample: generate reproducible data with a drive volume of only 120 μL
- Observe reactions on 10 ms timescale and higher: dead times as short as 8 ms
- Observe reactions at 0 - 60°C: sample temperature controlled from drive syringes through to cell and recorded on a digital temperature display
- Achieve asymmetric mixing ratios from 1:1 up to 1:10 when using different-sized syringes: simultaneous drive of both syringes provides ratio mixing capability
- Short Dead Time: The dead time of the RX2000 is only 8ms, as determined by the protocol of Tonomura et al ( Anal. Biochem *$, p370-383, 1978). This enables first order reaction rates over 200s-1 to be measured.
- Total Thermostatting: Uniquely, the entire flow circuit of the RX2000 is thermostated(including drive syringes). In addition to providing reliable temperature equilibration, this also has the added benefit of aiding in the rigorous exclusion of oxygen from the entire sample when undertaking anaerobic work.
- Chemical Resistant materials: Carefully selected materials are used throughout to protect the instrument from aggressive chemical spillage.
- Wide temperature range: High performance syringes with canted seals are used exclusively, providing reliable operation over a wide temperature range.
- Large ration mixing capability: The drive syringes can be readily substituted to allow mixing ratios from 1:1 to 1:10
- Universal compatibility: The RX2000 can be fitted in seconds without tools to ANY spectrometer that can accomodate a standard 1cm rectangular cell.
- Exceptional Sample Economy: The prime volume of the RX2000 is only 260?l per reagent (with the standard umbilical length of 60cm) and the subsequent volume per shot is only 100?l. Other lengths of umbilical can be supplied on request.
- Adjustable Drive Volume: The volume required per determination can be altered by adjusting the position of the stopping block/trigger mechanism. This flexibility os of particular importance when performing large ration asymmetric mixing experiments, and when eliminating air bubbles from the flow circuit
- Armoured Umbilical: The 60cm umbilical is armoured to prevent damage: The observation cell can therefore be positioned through tight turns without constructing the flow of the thermostatt fluid
- Triggering: The RX 2000 is provided with the following popular triggering configurations, TTL, open collector and switch contact. The trigger output is accessed by a standard 5 pin DIN socket
- Digital Temperature Display: This integral feature, fitted as standard, indicates the sample temperature in the cell to within 0.1 deg C
Specification :
| Dead time | 8ms |
| Optical Pathlengths | 2mm and 10mm for absorbance/flu orescence/circular dichroism |
| Widow Sizes | 30mm² and 6mm² for fluorescence detection |
| Cell Material | Spectrosil |
| Beam Height | 15mm from base of cuvette (other be am heights supplied on request) |
| Min. Vol./Shot/Reagent | 120 ? l |
| Prime Volume | 260 ? l with standard 60cm umbilical (other lengths available on request) |
| Syringe Volume | 2.5ml with canted seals as standard |
| Ratio mixing | Up to 10:1 by using different sized syringes |
| Temperature Ranges | 0– 60 0 C. Digital temperature display |
| Triggering | Anti-bounce, TTL, open-colle ctor and switch-contact |
| Flow Circuit | Biocompatible and chemically inert |
| Construction | Constructed from chemically resistant materials throughout |
| Anaerobic Facilities | An anaerobic accessory (RX/AA) is av ailable to facilitate rigorous exclusion of oxygen |
| Drive System | Manually or pneumatically driven (optional accessory RX/DA) |
| Ease of use | Simple, portable and self-contained. Fits in seconds with no adapters |
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