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-4H-Jena engineering introduces commercially purified mCP to improve seawater pH data comparability
4H-Jena engineering GmbH has become the only commercial provider with the ability to offer large-scale purification of meta-Cresol Purple (mCP) for spectrophotometric seawater pH measurement.
Mar 9


Sonardyne Origin 600 and CONTROS HydroC Sensor Deliver Real-Time Data for Ocean Acidification Research
Sonardyne International Ltd has integrated a CONTROS HydroC dissolved CO2 sensor from -4H-JENA engineering into its Origin 600 ADCP (Acoustic Doppler Current Profiler), unlocking new capabilities for marine research into ocean acidification.
Apr 6, 2025


PONANT’s new science-focused exploration vessel starts collecting Arctic Ocean data with FerryBox on
Sea water sensor and measuring system manufacturer -4H-JENA engineering’s FerryBox multi-parameter water measurement system is now...
Aug 14, 2022
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