PH paper was universally obtained from Micro-Essential Laboratories (Hydrion
345 S/R Dispenser; Brooklyn, NY) and is able to discriminate pH in 0.5 moles per liter increments between 3.0 and 5.5.
The concentration of sanitizer solutions in the kitchen was measured using appropriate sanitizer test kits: Precision Laboratories chlorine strips or Hydrion
QT-10 quaternary ammonium test strips.
(66) Using specialized pH Hydrion
test strips (Figure 5) can effectively give one a reliable assessment of the body's acid or alkaline balance.
Salivary pH was derived from colorimetric assays (Hydrion
, Micro Essential Lab., Brooklyn, NY, USA).