Mature product lines such as pH meters are fundamentally limited in underlying technology, so they evolve through adding features and functionality. High-end pH meters often come with USB or Bluetooth communications and networking capability.

The pH meter is an essential piece of equipment in most laboratories, vital for many analytical and synthetic processes. Typical pH meters consist of a glass electrode connected to an electronic meter.

This application note describes an automated method for the measurement of pH, Brix and acidity, incorporating a METTLER TOLEDO T90 Titrator, DM45 Density Meter, Rondo60 autosampler and LabX® titration software.

Over the years lab workers have come to expect more from instrumentation, and pH meters are no exception.

Connie Schreppel, director of water quality at Mohawk Valley Water Authority, oversees a 2,100-square-foot water quality lab, a 300-square-foot laboratory located in a treatment plant as well as the operations of the less-than-typical Adirondack watershed lab.

Tracing the origins of the pH meter and looking ahead to future advances.

Features a virtually unbreakable non-glass silicon chip sensor that gives stable readings in seconds.