AI Article Synopsis
- A new approach to controlling sample dispersion in flow systems involves shaking a reactor while the sample moves through, resulting in improved flow patterns.
- Shaking the reactor can boost peak height by up to three times and creates narrower and more Gaussian-shaped peaks compared to static conditions.
- This method allows for enhanced analytical performance by adjusting the oscillation frequency and amplitude, making it useful in various chemical analysis scenarios.
Article Abstract
A new strategy for the instrumental control of sample dispersion in continuous flow systems is presented. The method is based on shaking a loosely held straight reactor while the sample travels through the flow injection manifold. This external disturbance yields a sample transport more similar to the plug flow type because of the changes promoted on the flow pattern. Up to a three-fold increase in peak height, a comparable reduction in peak width and a more Gaussian peak profile are observed when the signals obtained with the shaken reactor are compared with those obtained with the same reactor but static. Improvements in the analytical performance as a function of different operational variables are shown for systems with or without a chemical reaction. Analytical implications and possible uses are discussed since this strategy allows the control of dispersion by simply selecting the frequency and amplitude of oscillation.
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| http://dx.doi.org/10.1039/b008157o | DOI Listing |
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