Kalstein Laboratory Ion Meters

The ion meter is a piece of equipment used to detect the concentration or activity of ions in a solution. There are different types of ion meters, some are designed to measure a specific ion.

Ion meters are used for multiple purposes, and in many areas; as it is in mining, livestock, laboratory, agriculture, arts, agri-food industry, drinking and residual water, among many others. There are many other uses for an ion meter, but it should be noted that its most frequent and impressive use is to measure and control the purity of water. Since pure water is required for many laboratory and hospital procedures, in addition to drinking water, it must be as optimal as possible to avoid diseases and health conditions in people.

One of the instruments to measure ions is ion selective electrodes (ISE) which are an analytical tool to quickly determine the activity of solutions. Together with an ion concentration meter, ISEs are a versatile measurement system. The process with which ion selective electrodes work is ion exchange, which measures the potential difference produced by the contact of the electrode with the ion being studied, following the Nernst equation. As the name implies, to carry out the measurement, the electrode must make contact with a certain ion present in the solution. The activity of the specific ion is converted into electrical potential when it comes into contact with the active membrane of the ion selective electrode.

How are ions measured?

Ions are atoms or groups of atoms that have a charge, they differ according to the charge they present, negatively charged ions are called anions; while positively charged ions are called cations. They are of great importance in many aspects of life and science, since many normal substances are present in the human body in the form of ions such as sodium, potassium, calcium and more. And not only at the biological level, but also at the industrial level, ions play a fundamental role.

One of the instruments to measure ions is ion selective electrodes (ISE) which are an analytical tool to quickly determine the activity of solutions. Together with an ion concentration meter, ISEs are a versatile measurement system. The process with which ion selective electrodes work is ion exchange...

Our best-selling Ion Meter:

β€’ The professional portable bromide ion meter is equipped with a backlit LCD display.
β€’ 2 to 5 point calibration from low to high concentrations.
β€’ 8 selectable concentration calibration points, including 0.001 to 10000.
β€’ Selectable concentration units: ppm, mg / L and mol / L.
β€’ Automatic electrode diagnostics displays calibration points and slopes.
β€’ Automatic temperature compensation ensures accurate readings throughout the range.
β€’ Direct reading of ion concentration simplifies the measurement process.
β€’ Automatic reading function detects and locks the end point of the measurement.
β€’ Calibration due alarm prompts the user to calibrate the meter regularly.
β€’ Auto power off effectively conserves battery life.
β€’ The configuration menu allows you to configure the number of calibration points, stability criteria, temperature unit, date and time, etc.

Ion Gauge Utilities

Each model that we, KALSTEIN, as a Laboratory Equipment company, offers you, has different settings, parts and characteristics that range from the concept of different refrigeration and freezing temperatures to design, you can see it through our online purchase channels

Calcium measurement in water: this helps consumers to accurately understand their calcium intake and thus determine if it is drinkable or not.

Determination of potassium in seawater, present in the sample and thus determine the beta activity due to potassium-40.

Water salinity measurement: This is of great importance as aquatic organisms, livestock and crops thrive at different levels of salinity.

Determination of sodium concentration in foods: allows understanding and limiting salt consumption and reducing health risks.

Measurement of the sodium value in canned food: due to the concern about the high concentration of sodium, it is of relevance

Measurement of calcium in milk and dairy drinks: this helps the consumer to accurately know their calcium intake in said liquid drinks

Measurement of nitrates in hybrid sorghum and Pearl Millet hay: it is used to prevent cattle from becoming poisoned with nitrate.

pH measurement in sausage: control the alkalinity or acidity of meat in sausage manufacturing

Determination of available nitrogen in the soil: the concentration of nitrates in the soil

Measurement of pH in the soil and availability of nutrients: for the prosperity of crops, the soil must have an optimal pH

Rapid determination of the nutrient content in the tomato crop: it is used to monitor the nutritional load

Potassium measurement in rice: Potassium is one of the essential nutrients for plants, which is supplied by irrigation to rice crops.

Types of Conductivity to measure ions:

There are two technical approaches to measuring conductivity: inductive and contact.

Inductive conductivity

Inductive sensors use two electromagnetic coils that are usually encapsulated in a polymer ring. An alternating voltage is applied to the drive coil, which induces a voltage in the receiving coil. The induced current is influenced by the conductance of the solution. Due to the closed housing, inductive sensors can be used in aggressive environments, but are not suitable for conductivities below 15 Β΅S/cm.

Contact conductivity

Contact sensors consist of conductive electrodes (for example, metals such as platinum, gold, steel, titanium, and non-metallic graphite) that are in direct contact with the medium. The primary parameters measured are the applied voltage and current. The interdependence of both parameters, described by Ohm's law, allows the calculation of a resistance R (measured in Ohm[Ξ©]) or the inverse – the conductance G (measured in Siemens[S]).

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How are ions properly measured?

Ions are atoms or groups of atoms that have a charge, they differ according to the charge they present, negatively charged ions are called anions;

Ion and Conductivity Meters: Differences

Current ion meters are based on the selective ion electrode technique. These are measuring instruments that have a sensitive membrane capable of measuring ionic activities. That is, they measure the concentration of a given ion in a solution...

What is the ion meter used for?

The ion meter is a piece of equipment used to detect the concentration or activity of ions in a solution. There are different types of ion meters, some are designed to measure a specific ion...

pH meters and multiparameters / turbidimeters

A pH meter is a scientific instrument that measures the activity of ionic hydrogen in aqueous solutions, indicating their degree of acidity or alkalinity expressed as pH. The PH counter measures the electrical potential difference between a pH electrode and a reference electrode. This difference in electrical potential is linked to the acidity or pH of the solution. The PHMETE is used in many applications ranging from laboratory experimentation to quality control.

Kalstein ion meter in our catalogue:

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