FAQs

Our sensors use exactly the same techniques as are used in laboratory testing, and our patented technology allows this to be implemented in a device which can run tests automatically next to, or even in the water being analysed. The approach is based on established test chemistries that have been run in analytical laboratories for many years, often as ‘gold standard’ reference methods. 

Yes, DropletSens™ is a platform technology. To implement a different analyte, different reagents need to be used and some process parameters such as reaction temperature and residence time adjusted to optimise the assay performance. In principle we can implement any reagent-based colour change assay, with indicative tech transfer and development times of approximately 3 to 6 months. 

Mainly due to the ultra-efficient use of reagents based on our proprietary nanodroplet microfluidics approach. Each measurement typically requires <100 nanolitre of reagent (<0.0000001 L). Also, because sample intake flowrates are similarly low, our bespoke inlet filters take much longer to clog as would otherwise be the case. Together this results in our sensors, even in continuous operation, only having to be serviced every 3 months. 

ISEs are electrode-based electrochemical devices that are specific for a particular analyte. They can be cheap to purchase but tend to suffer from drift and require frequent, typically monthly, maintenance to re-calibrate or exchange the membrane. There are no ISEs for key parameter Phosphate (PO₄).

UV probes look at absorbance spectra to identify and quantitate some analytes. They have limited specificity and performance deteriorates at high turbidity. There are no spectral probes for key parameters Ammonium (NH₄) or Phosphate (PO₄).

The Online Analyser is primarily for fixed installation applications such as inside water treatment plants, in outbuildings or in measurement kiosks to which water is pumped and mains power provided. For other applications, such as environmental or river monitoring, our in-situ probe can provide a flexible solution which doesn’t require additional infrastructure.

Yes, we are actively looking for collaborations with integrators, distributors and strategic partners. We are also interested in joint developments such as the integration of third-party test chemistries onto our platform.

SKion Water, a global water and wastewater technology provider, is a minority shareholder in SouthWestSensor. SKion Water provides us with access to other technologies, solutions and support within its portfolio.