Obtain Accurate Concentration Measurements
Tunable Resistive Pulse Sensing (TRPS) is by far the most accurate technique for measuring particle concentration. As with size, the concentration is always derived from direct comparison with calibration particles, providing certainty as well as accuracy. The accuracy, resolution and repeatability of the measurements mean that the usefulness of the particle number is enhanced well beyond providing a single number of particles per mL. Note that, regardless of the technique used, the concentration needs to be defined by the size range covered. The size profile should be presented with the number of particles in each size bin, in histogram format. The detail and repeatability of TRPS concentration measurement allow you to track and control particles through various processes which speeds up your research/development projects. Note that DLS is unable to measure particle concentration at all and NTA is only able to measure it on a semi-quantitative log-scale basis.