The OptiLine 6 titration electrode from SI Analytics USA automates photometric titrations in one compact, yet versatile instrument. While connected to TitroLine titrators (models 7000, 7750 and 7800), it can also be conveniently used with any titrator or pH meter, thanks to its additional analog BNC/DIN connector. Six adjustable wavelengths (470, 520, 570, 590, 605 and 625 nm) are set by the TitroLine or via software when using the analog connector. It has a solvent-resistant titanium shaft, making it a reliable and easy-to-clean instrument for multiple applications, including acid/base titrations in aqueous and organic solvents, determination of chondroitin sulfate sodium according to Ph.Eur. and USP, and titration of sulfate indicator thorin. 800-653-1711; www.si-analytics.com