ข้อมูลจาก Calcium ISE สามารถบ่งชี้ได้ดีถึงความกระด้างของน้ำ (เช่น Ca2+) ความเข้มข้นของแคลเซียมยังใช้เป็นตัวบ่งชี้จุดสิ้นสุดในการไทเทรตน้ำกระด้าง EDTA-Ca/Mg
The Calcium ISE has a combination-style, non-refillable, gel-filled electrode. Like all other PVC ISE membranes, the membrane on the ISE has a limited life expectancy. However, the replaceable module of ISE allows you to simply discard the used membrane module, and replace it with a new one.
Note: We recommend that you do not purchase ISE replacement modules too far in advance of their expected time of use as degradation occurs while they are stored on the shelf.
Important: Ion-Selective Electrodes require good chemical technique and careful calibration to obtain accurate results; they are not recommended for middle school or elementary students.