The nitrate ion selective electrode (ISE) is a reliable tool for measuring nitrate ion concentrations across a pH range of 2.5 to 11 and temperatures from 0°C to 40°C. With a durable epoxy resin casing and PVC membrane, it ensures long-term performance and high selectivity for nitrate ions. The BNC (Q9 type) connector allows easy compatibility with most ion meters, making it ideal for water quality testing, agriculture, and environmental monitoring.
Design Features of Ion Electrode
- The electrode offers a broad working pH range from 2.5 to 11, making it versatile and suitable for a wide variety of solutions.
- This ISE operates efficiently within a temperature range of 0°C to 40°C, ensuring reliable performance in different environmental conditions.
- Equipped with a BNC (Q9 type) connector.
Material and Structure of Nitrate ISE
- This nitrate ion electrode has a epoxy resin casing which enhances durability and wear resistance.
- Cost-efficiency, durability, and high selectivity for nitrate ions are ensured by the PVC membrane.
Application
The ion selective electrode is a versatile tool widely used for monitoring and analyzing water quality across various applications. It is particularly effective in testing drinking water, domestic water, pool water, and industrial water, ensuring compliance with safety and regulatory standards. Its high sensitivity to specific ions makes it ideal for detecting trace contaminants in these water sources. Additionally, the electrode can be used for analyzing surface water and groundwater, providing critical data for environmental monitoring and pollution control. Whether for routine quality checks or environmental research, the ion selective electrode offers reliable, precise measurements to help maintain safe and clean water across different settings.
Domestic Water
Pool Water
Industrial Water
Drinking Water
| Model | SISCO-ISE-972123 |
| Type | Nitrate ion composite electrode |
| Measurement Range | 1.0×10⁻⁵~1.0mol/L |
| Mass Concentration | 0.6~60000ppm |
| pH Range | 2.5~11 |
| Operating Temperature | 0~40℃ |
| Repeatability | ±2% |
| Liquid Junction | Separable ring ground joint |
| Reference Structure | ClickOK reference system |
| Reference Solution | ISE reference filling solution type I |
| Standard Solution | NaNO₃ solution |
| Ion Strength Adjuster (Powder) | Small amount of NaH₂PO₄ powder |
| High-end Ion Strength Regulator | Ion strength regulator type Ⅴ |
| Housing Material | Epoxy resin |
| Sensitive Membrane Material | PVC membrane (replaceable) |
| Dimensions | Φ12×120 mm |
| Connector | BNC (Q9 Type) |
Q1: What is an ion selective electrode (ISE)?
A1: An ion-selective electrode (ISE) is a type of sensor designed to measure the concentration of specific ions in a solution. It is used in various fields, such as environmental monitoring, clinical diagnostics, and industrial applications, for real-time ion concentration measurements. ISEs are highly valued for their simplicity, accuracy, and ability to provide precise data without the need for complex sample preparation. These electrodes offer a quick and reliable way to monitor ion levels in a variety of solutions.
Q2: How does an ISE work?
A2: An ion-selective electrode (ISE) works by utilizing a membrane that selectively interacts with a specific ion in a solution. The electrode generates an electrical potential when the ion of interest interacts with the membrane. This potential is directly related to the concentration of the ion in the solution. The ISE typically consists of a reference electrode and an ion-selective membrane, which allows the target ion to pass through or interact with it, while minimizing the influence of other ions. The measured potential is then used, along with the Nernst equation, to calculate the ion concentration in the solution. This enables accurate and real-time measurement of ion levels.
Q3: What types of ions can an ISE measure?
A3: An ion-selective electrode (ISE) can measure a wide range of ions, depending on the type of membrane it uses. Commonly measured ions include sodium (Na⁺), potassium (K⁺), calcium (Ca²⁺), chloride (Cl⁻), ammonium (NH₄⁺), nitrate (NO₃⁻), and hydrogen ions (H⁺), among others. Each ISE is designed to selectively respond to a particular ion or group of ions, allowing precise measurements in different applications. For example, a sodium ISE can be used in clinical diagnostics to monitor blood sodium levels, while a chloride ISE may be used in environmental monitoring to assess water quality. The ability to measure specific ions makes ISEs highly versatile tools in fields like chemistry, biology, medicine, and environmental science.
Tips: What is the difference between ISE and other electrochemical sensors?
Ion selective electrodes (ISEs) differ from other electrochemical sensors primarily in their ability to measure specific ion concentrations in a solution. While general electrochemical sensors, like pH electrodes or amperometric sensors, measure properties like voltage or current based on broad electrochemical reactions, ISEs are designed to respond selectively to a particular ion, such as nitrate, calcium, or sodium. This selectivity is achieved through a membrane that interacts specifically with the target ion, allowing for accurate and direct measurement of its concentration. Other electrochemical sensors often require calibration with reference solutions or rely on indirect methods to infer ion concentration, whereas ISE electrodes provide a direct, real-time measurement of ion levels. Additionally, ISEs tend to have a narrow ion specificity, making them more precise in certain analytical applications like environmental monitoring or chemical analysis.
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