Potassium Ion-Selective Electrode

Potassium Ion-Selective Electrode

Potassium Ion-Selective Electrode

$268.00

The Potassium Ion-Selective Electrode can be used to measure the concentration of potassium (K+) ions in aqueous solutions.

ORDER CODE: K-BTA Categories ,

The Potassium Ion-Selective Electrode makes the measure of potassium ions portable. When used with a Vernier LabQuest 2, the Potassium ISE can be used to take readings in the field – at lakes or streams. This sensor is easier to set up and use than other methods of measuring potassium ion concentration in aqueous solutions. Because it is a stick-style sensor, its use is similar to using a conductivity probe or a pH sensor in a laboratory setting or in the field.

Ion-Selective Electrodes require good chemical technique and careful calibration to obtain accurate results. They are not recommended for middle school or elementary students.

We recommend that you do not purchase Potassium Ion-Selective Electrode replacement modules too far in advance of their expected time of use; degradation occurs while replacement modules are stored on the shelf.

Specifications

  • Range (concentration): 1 to 39,000 mg/L (or ppm)
  • Reproducibility (precision): ±11% of full scale (calibrated 10 to 1000 mg/L)
  • Interfering ions: Cs+, NH4+, H+, Ag+, Li+, Na+
  • pH range: 2–12 (no pH compensation)
  • Temperature range: 0–40°C (no temperature compensation)
  • Electrode slope: +56 ±4 mV/decade at 25°C
  • Electrode resistance: 1–10 MΩ
  • Immersion: 2.8 cm
  • Electrode length: 155 mm
  • Body diameter: 12 mm
  • Cap diameter: 16 mm
  • Cable length: 100 cm

Experiments

Requirements

Choose a platform below to see its compatibility requirements.

LabQuest
InterfaceLabQuest App
LabQuest 3Full support
LabQuest 2 (discontinued)Full support
LabQuest (discontinued)Full support
Computers
Software
InterfaceGraphical Analysis App for ComputersLogger ProLogger Lite
LabQuest MiniFull supportFull supportFull support
LabQuest 3Full supportFull supportIncompatible
LabQuest 2 (discontinued)Full supportFull supportFull support
LabQuest StreamFull support 1Full supportFull support 1
Go!LinkFull supportFull supportFull support
LabQuest (discontinued)Full supportFull supportFull support
LabPro (discontinued)IncompatibleFull supportFull support

Compatibility Notes

  1. Connect LabQuest Stream via USB. Wireless connection is not supported.
Chromebook
Software
InterfaceGraphical Analysis App for Chrome
LabQuest MiniFull support
LabQuest 3Full support
LabQuest 2 (discontinued)Full support
LabQuest StreamFull support 1
Go!LinkFull support
LabQuest (discontinued)Full support

Compatibility Notes

  1. Connect LabQuest Stream via USB. Wireless connection is not supported.
iOS
Software
InterfaceGraphical Analysis App for iOSGraphical Analysis GW for iOS
LabQuest StreamFull supportFull support
LabQuest 3Full support 1Full support 1
LabQuest 2 (discontinued)Full support 1Full support 1

Compatibility Notes

  1. iOS and Android devices can only connect to LabQuest 2 or LabQuest 3 via Wireless Data Sharing.
Android
Software
InterfaceGraphical Analysis App for AndroidGraphical Analysis GW for Android
LabQuest StreamFull supportIncompatible
LabQuest 3Full support 1Full support 1
LabQuest 2 (discontinued)Full support 1Full support 1

Compatibility Notes

  1. iOS and Android devices can only connect to LabQuest 2 or LabQuest 3 via Wireless Data Sharing.
Arduino
Software
InterfaceArduino
Vernier Arduino® Interface ShieldFull support 1

Compatibility Notes

  1. Requires advanced programming for data collection
LabVIEW
Software
InterfaceNI LabVIEW
SensorDAQ (discontinued)Full support 1
Vernier myDAQ AdapterFull support 1 2
Go!LinkFull support 1
LabQuest MiniFull support
LabQuest StreamFull support
LabQuest 3Full support
LabQuest 2 (discontinued)Full support
LabQuest (discontinued)Full support

Compatibility Notes

  1. Requires advanced programming for data collection
  2. You can only read the raw count/raw voltage output by this sensor. You must do the programming to convert to proper sensor units.
Texas Instruments
Software
InterfaceEasyDataDataMateTI-84 SmartViewDataQuestTI-Nspire Software
EasyLinkFull support 1IncompatibleFull support 2Full supportFull support 2
CBL 2Full support 3Full support 3 4IncompatibleIncompatibleIncompatible
LabPro (discontinued)Full support 3Full support 3 4IncompatibleIncompatibleIncompatible
TI-Nspire Lab Cradle (discontinued)IncompatibleIncompatibleIncompatibleFull supportFull support

Compatibility Notes

  1. Use with TI-84 Plus calculators only.
  2. Requires an Easy to Go! adapter
  3. CBL 2 and LabPro interfaces cannot be used with TI-84 Plus CE calculators.
  4. DataMate cannot be used with color screen TI-84 Plus calculators; use EasyData with these calculators.

What's Included

  • Vernier Potassium Ion-Selective Electrode
  • 30 mL bottle of High Standard Standard (1000 mg/L)
  • 30 mL bottle of Low Standard Standard (10 mg/L)
  • ISE soaking bottle (empty bottle with insertion cap)
  • User manual

Accessories

Replacement PartOrder CodePriceQuantity
Standard Potassium Solution - High ConcentrationK-HST$20.00
Standard Potassium Solution - Low ConcentrationK-LST$20.00
Electrode Storage BottlesBTL-ES$15.00
Potassium Replacement ModuleK-MOD$89.00

Support

Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications.

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