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Thornton is the global leader in critical ultrapure and pure water analytics in applications where accuracy and reliability are essential. Thornton offers innovative analytical instruments and sensors for the measurement of resistivity, conductivity, total organic carbon (TOC), bioburden, dissolved oxygen (DO), sodium, silica, ozone, chloride, sulfate and phosphate. Thornton instrumentation is trusted globally in the pharmaceutical, biotech, power generation and microelectronics sectors.
METTLER TOLEDO Thornton is the leader in pure and ultrapure industrial water analytics and water analyzers used in pharmaceutical, biotech, semiconductor, microelectronics and power generation applications.
Its core competence is the on-line measurement of conductivity, resistivity, TOC, dissolved oxygen and ozone in determining and controlling water purity.
Thornton was founded in 1964 by Dr. Richard Thornton, a professor at the Massachusetts Institute of Technology. Thornton is widely considered as the leader in the production of high-quality resistivity/conductivity sensors. For decades, Thornton has been engaged with key international organizations such as USP, EP, JP, FDA, SEMI & PV and ASTM, and has strong relationships with water system fabricators. Thornton was acquired by METTLER TOLEDO in 2001 and is part of the Process Analytics division.
Thornton has over 50 years of innovating in pure water monitoring, and continues to innovate unique systems for pure and ultrapure water analytics. One such example is a package of analyzers designed for power plant cycle chemistry that includes a sodium ion analyzer and silica analyzer, plus a chloride and sulfate ion analyzer that uses microfluidic capillary electrophoresis technology. METTLER TOLEDO Thornton also launched the first-of-its-kind microbial detection system. This at-line process analyzer is designed to complement and replace cell-culture testing as a method to identify microbial contamination in pharmaceutical waters.