OHAUS STARTER pH Electrodes

OHAUS STARTER pH Electrodes are instruments that support pH analysis, including a glass shaft 3-in-1 electrode, micro sample, double salt-bridge, and flat surface pH electrodes.

pH measurement is usually conducted using a combination electrode that consists of a pH-sensitive glass electrode that is sensitive to hydrogen ions present in a sample as well as a reference electrode that has a constant potential value. A potential is developed on the membrane surface when a pH electrode comes into contact with a sample. pH meters measure variation in the potential and convert it directly into a corresponding pH value.

pH measurement is sensitive to temperature changes. 3-in-1 electrodes are convenient tools that contain a built-in temperature electrode that can be used together with a meter to compensate temperature changes without the need for an external temperature electrode.

Maintenance & Storage:  Aways keep the pH electrode moist when no tin use by using an electrode storage solution (3M KCl). DO NOT store the electrode in distilled or deionized water as this will cause ions to leak out of the glass bulb and reference electrolyte, causing a slow and sluggish response. Electrodes may be shipped with either protective caps or in electrode soaking bottles to prevent cracking or scratching and to keep the glass bulb moist. Remove the electrode gently from the storage bottle and rinse it with distilled water before use. For long-term storage, always keep the electrode in the bottle in enough storage solution to cover the bulb. Replenish the bottle as needed.