Name: Potassium (K⁺) Ion Selective Half-Cell Electrode PK-1-01
SKU: PK-1-01
Availability: InStock

Potassium (K⁺) Ion Selective Half-Cell Electrode PK-1-01

R3,027.38 incl. VAT

Potassium ion-selective half-cell electrode PK-1-01. It measures K⁺ from 1 × 10⁻⁵ – 0.1 M (0.39 mg/L – 3.9 g/L) together with a separate reference electrode. Organic glass body, Φ12 × 120 mm, BNC(Q9) connector.

Overview

The potassium ion selective electrode PK-1-01 is a half-cell (indicator) electrode. It carries a pvc membrane sensing element in an organic glass body. Specifically, it measures K⁺ from 1 × 10⁻⁵ – 0.1 M (0.39 mg/L – 3.9 g/L) at 5 – 60 °C and a working pH of 4 – 11. However, NH₄⁺, Cs⁺ interfere.

Because it is a half-cell, you use it together with a separate reference electrode. The manufacturer specifies: Saturated KCl solution (inner solution) + 1 mol/L NaCl (outer solution). In addition, the BNC(Q9) connector fits benchtop ion meters and titrators with separate indicator and reference inputs. As a result, you can choose the reference system and the outer filling solution to suit your sample.

Key features

Measures K⁺ from 1 × 10⁻⁵ – 0.1 M — 0.39 mg/L – 3.9 g/L
PVC membrane sensing element, organic glass body, Φ12 × 120 mm
Working temperature 5 – 60 °C, working pH 4 – 11
Half-cell design — pair with reference electrode: Saturated KCl solution (inner solution) + 1 mol/L NaCl (outer solution)
BNC(Q9) connector
Calibration standards and replacement membranes available — quote the model

Potassium ion selective electrode — specifications

Type	Indicator Electrode
Ion measured	K⁺
Measuring range	1 × 10⁻⁵ – 0.1 M (0.39 mg/L – 3.9 g/L)
Sensing membrane	PVC membrane
Body material	Organic Glass
Dimensions	Φ12 × 120 mm
Working temperature	5 – 60 °C
Connector	BNC(Q9)
Junction	—
Filling solution	—
Reference type	—
Working pH range	4 – 11
Interfering ions	NH₄⁺, Cs⁺
Reference electrode required	Saturated KCl solution (inner solution) + 1 mol/L NaCl (outer solution)

Specifically, the table lists the manufacturer’s ratings. Therefore, ask us if your application needs a value that is not shown.

Applications

This electrode serves fertiliser and irrigation-water analysis, soil extracts, and food and beverage QC. Therefore, calibrate it with standards that bracket your sample for accurate results. In addition, keep sample and standards at the same temperature.

Why buy the potassium ion selective electrode from Hadron Group

Hadron Group runs its own water laboratory in Pretoria. In addition, we supply analytical instruments to municipal, mining, food and industrial laboratories across South Africa and the SADC region. We stock the electrodes we use ourselves. Moreover, calibration standards, filling solutions and replacement membranes are available for every model. Finally, we help you match the electrode to your meter before you order.

Frequently asked questions

How do I order the potassium ion selective electrode PK-1-01? Quote the model number and your meter. In addition, tell us which standards and filling solutions you need, and we will quote the set.

Do I need a reference electrode? Yes. This is a half-cell (indicator) electrode. The manufacturer specifies Saturated KCl solution (inner solution) + 1 mol/L NaCl (outer solution). In addition, we can pair it for you when you order.

Which meters is it compatible with? In short, benchtop ion meters and titrators with a BNC(Q9) indicator input and a separate reference input.

What is the measuring range in concentration units? The range is 1 × 10⁻⁵ – 0.1 M. In other words, it corresponds to 0.39 mg/L – 3.9 g/L.

Related: all electrodes & probes.