Direct measurement of soil chemical properties by Ion Selective Electrode (CAT#: STEM-ACT-0108-WXH)

Introduction

Automated sensing of soil macronutrients would be useful in mapping soil nutrient variability for variable-rate nutrient management. Ion-selective electrodes (ISEs) are a promising approach because of their small size, rapid response, and ability to directly measure the analyte.

Add to Cart Please Inquire

Principle Applications Procedure Materials Notes Related Products

Principle

An ideal ion-selective electrode (I.S.E.) consists of a thin membrane across which only the intended ion can be transported. The transport of ions from a high conc. to a low one through a selective binding with some sites within the membrane creates a potential difference.

Applications

• Used for the potentiometric determination of several anions (fluoride, chloride, bromide, iodide ion) and cations (sodium, potassium, calcium ion).
• Used for endpoint detection in potentiometric titration.
• In biochemistry, ion selective electrodes are used for the determination of enzymes and substances which interact with enzymes.

Procedure

1. Preparation of Standards
2. Instrument Setup and Operation
3. Analysis of sample

Materials

Ion Selective Electrode

Other recommended products

Measurement of potassium by Ion Selective Electrode (CAT#: STEM-ACT-0100-WXH)
Measurement of Ammonium by Ion Selective Electrode (CAT#: STEM-ACT-0111-WXH)
Measurement of Nitrate by Ion Selective Electrode (CAT#: STEM-ACT-0102-WXH)
Ion Selective Electrode Analysis (CAT#: STEM-ACT-0096-WXH)
Measurement of Calcium by Ion Selective Electrode (CAT#: STEM-ACT-0101-WXH)
Measurement of Phosphate by Ion Selective Electrode (CAT#: STEM-ACT-0110-WXH)
Determination of chloride ion by Ion Selective Electrode (CAT#: STEM-ACT-0099-WXH)
Measurement of Cyanide by Ion Selective Electrode (CAT#: STEM-ACT-0107-WXH)