Worldwide, billions of people rely on water sources whose hygienic quality is unclear or difficult to monitor. Conventional ...

Abstract: A highly sensitive fiber-optic urea sensor was designed and experimentally demonstrated based on surface plasmon resonance (SPR) effect and metal-organic zeolite framework (MOF), [zeolite ...

California officials have admitted that flawed urine test kits used for nearly a decade may have produced false-positive or artificially inflated alcohol readings in DUI cases. The issue stems from ...

Mouth swab drug tests use a saliva sample to check for the presence of drugs or alcohol. You should not eat or drink for 10 minutes before a mouth swab drug test and make sure nothing is in your mouth ...