Laboratory pH Electrodes

Use laboratory electrodes with pH meters to intermittently test the pH of a solution. Electrodes feature glass or epoxy bodies and come in either combination or half-cell styles. Laboratory electrodes are further categorized according to fermentation, general purpose laboratory,Specialty, and ion-selective applications. Fermentation electrodes resemble Industrial electrodes because they can be used continuously for several days. Fermentation electrodes are rugged, can be hooked up to some pH controllers, and are either autoclavable or in-situ-sterilizable. Beckman Coulter offers Nitrate, Flouride, Ammonia Gas Sensing, Chloride, Ammonium Ion-selective electrodes. There are a multitude of electrodes for your specific application. Here is a table to assist you in selecting the correct electrode for the correct application. *Biological samples, proteins, and tris buffer Calomel (Hg/Hg2Cl2) or double-junction *Pharmaceuticals Calomel (Hg/Hg2Cl2) or double-junction *Drinking water Standard Ag/AgCl with single-junction *Waste water Double-junction *Solutions with heavy metals Double-junction *Soil samples Soil electrode or double-junction *Fruits, cheese, and meat Spear-tip, Ag/AgCl *Flat surfaces, paper, skin Flat-surface