Calcium Ion-Selective Electrode
The Calcium Ion-Selective Electrode (ISE) can be used to measure the concentration of Calcium (Ca2+) in aqueous samples.
$537.00
Due to recent changes in global trade policy, our products are being impacted by tariffs. This means a surcharge of 5% will be applied to orders received starting May 12th, with the exception of software and books. If the tariffs are reduced or removed in the future, we’ll adjust our pricing as quickly as possible. Learn More
Education Levels
Data from the Calcium ISE can give a good indication of hardness of water (as Ca2+). The concentration of Calcium is also used as an endpoint indicator in EDTA-Ca/Mg hardwater titrations.
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.
Range (concentration): 1 to 40,000 mg/L (or ppm)
Reproducibility (precision): ± 10% of full scale (calibrated 10 to 1000 mg)
Interfering Ions: Pb2+, Hg2+, Si2+, Fe2+, Cu2+, Ni2+, NH3, Na+, Tris+, Li+, K+, Ba2+, Zn2+, Mg2+
pH Range (concentration): 2–8 (no temperature compensation)
Electrode Slope: +26 mV/decade at 25°C
Electrode Resistance: 100 MΩ
Immersion: 2.8 cm (1.1 in)
Electrode length 155 mm
Body diameter: 12 mm
Cap diameter: 16 mm
Cable length: 100 cm
Vernier Calcium Ion-Selective Electrode
30 mL bottle of Calcium Low Standard (10 mg/L)
30 mL bottle of Calcium High Standard (1000 mg/L)
Short-term ISE soaking bottle
User manual
Electrode Support (ESUP)
Calcium Replacement Module (CA-MOD)
Electrode Storage Bottles (BTL-ES)
Standard Ca ISE Solution ()
User Manual: https://www.vernier.com/manuals/ca-bta/
Warranty: 5-year limited warranty (1 year on module, none on consumables)
FAQ: https://www.vernier.com/til/1434/
