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ATP measurement in seawater reverse osmosis systems: Eliminating seawater matrix effects using a filtration-based method
Creators
- 1. UNESCO-IHE Institute for Water Education
- 2. Delft University of Technology
- 3. Promega
- 4. University of Wisconsin-Madison
- 5. Het Waterlaboratorium, J.W. Lucasweg 2, 2031 BE Haarlem, the Netherlands
- 6. King Abdullah University of Science and Technology
Description
Abstract A direct method for measuring adenosine-triphosphate (ATP) in seawater was developed recently, in which commercial reagents are added directly to seawater. However, calibration is required if seawater quality changes (such as changes in salinity, pH, Mg2+, Fe3+) as the seawater matrix interferes with ATP measurement. In this research, a 0.1 μm filtration process is introduced to eliminate such interferences. In addition, a filter rinsing step with sterilized artificial seawater is proposed to eliminate interference of free ATP. The ATP-filtration method is fast (
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References
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