The HI4016-46 solution is for conditioning, or etching, the FC300B sodium ion selective electrode (ISE). Measurement of sodium in solutions is determined by ion exchange between the selectively permeable glass membrane and the sample solution. By conditioning the glass membrane, a thin layer of glass is removed, exposing a fresh surface in which sodium ion exchange can occur. After conditioning, the electrode should be soaked in storage solution before calibration and measurement. The HI4016-46 is a 500 mL bottle of conditioning solution that ensures optimum measurement performance from the FC300B sodium ISE.

Note: Use caution when handling HI4016-46 conditioning solution. Personal protective equipment should be worn.