Robuta

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0183234 DipTest: A litmus test for E. coli detection in water | PLOS One We have developed a new litmus paper test (DipTest) for detecting Escherichia coli (E. coli) in water samples by performing enzymatic reactions directly on the... litmus test