SX20 Stopped-Flow Spectrometer - Sequential Mixing
SQ.1 Sequential-Mixing
The SQ.1 sequential- (or double-) mixing accessory is specifically designed to study the reactivity of intermediate and transient species. Asymmetric double mixing experiments are also fully supported (e.g. for protein folding/unfolding reactions). This accessory equips the sample handling unit with two drive rams (and 4 syringes). The first drive mixes two reagents (A and B) into an aging loop and, after a user defined aging period, a second drive mixes the aged solution with a third reagent (C) in the stopped-flow cell.
SX20 flow-circuit for sequential mixing. The diagram shows the two drive-rams, the drive syringes, the pre-mixer, optical cell and stop syringe. |
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No hardware reconfiguration is required when switching between short and long aging times; the required aging time is simply entered by the user and this can be anything in the range 14ms to 1000s.
Full drive information is provided with each experiment including, drive profiles, calculated age time, drive volume per syringe, and a measurement of the dead-time. Aging times are reproducible to within 1ms.
Other SX20 Accessories
- SQ.1 Sequential mixing
- PDA.1 Photodiode array
- SEM.1 Scanning Emission Monochromator
- AM.1 Scanning Monochromator (far-UV)
- UV.1 Deuterium light source
- RC5.1 5µl cell cartridge
- FP.1 Fluorescence polarisation/anisotropy
- DD.1 Dual detection accessory
- DF.1 Dual fluorescence detection accessory
- AN.1 Anaerobic system
- QFA.1 Quench-flow adaptor
- Pro-K Global analysis for PC
- Pro-K II 2 nd Order Global analysis for PC
Click here to request a full PDF brochure for the SX20 Stopped-Flow Spectrometer and accessories.
SX20 - the ultimate gold standard in stopped-flow
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