Iron Measurements with Magnetic Analyzers

Detecting and measuring extremely low levels of metallic iron (Fe) compounds in goods is a critical quality assurance and control process in a range of markets. Its importance stems from the fact that iron is both an essential nutrient for supporting life and one of the primary elements used in metallurgy. Yet it is neither abundant in the earth nor easily acquired. Low-level iron measurements are subsequently critical in guaranteeing the desired outcomes of varied end-products, from fiber optical glass strands to pharmaceuticals.

Particulate Systems pioneers the use of magnetic analyzers for trace level iron measurements. Exploiting the essential ferromagnetism of certain metallic elements like cobalt (Co), nickel (Ni), and iron guarantees excellent levels of sensitivity for measuring the metal content of in myriad sample materials.

Our proprietary magnetic analyzer is the MA-1040, which was originally developed for trace level iron measurements of raw materials in the abrasive grain industry. This technology proved ideal for quality control of grain purity for both metallic and synthetic abrasive technologies. In 1976, the MA-1040 magnetic analyzer was acquired by Particulate Systems and this outstanding potential has been honed over multiple development cycles. The result is one of the most sensitive and finely-tailored analyzers for iron measurements currently available.

Outlining the MA-1040

Since the technology’s earliest iterations, the MA-1040 magnetic analyzer has been significantly improved. It now offers outstanding sensitivity down to 0.00001% of a sample’s magnetic content, or 0.1 parts per million (ppm) resolution. This is based around a simple system concept that uses two matched air core coils.

These coils are energized with an alternative current (AC) of 683 Hz that rejects stray frequencies common in production environments. Any differential resonance between the two coils is subsequently due to the presence of magnetic materials within the sample. One of the coils acts as a reference while the other acquires sample material for analysis, and imbalances in the resonance frequency are calculated as a function of strength. The strength of this signal is directly proportional to the amount and concentration of magnetic materials within the sample.

This signal is displayed digitally as a percentage of the magnetic content of the entire sample. Iron measurements can subsequently be conducted in situ in a range of industrial and production environments. It can reliably be applied in working environments where temperatures regularly range from 10 – 45°C (50 – 113°F).

As a result, the MA-1040 magnetic analyzer is used to detect ultra-trace levels of magnetic compounds in goods and samples as varied as food, pharmaceuticals, precious gems, groundwater, and microelectronics. It has been referenced as an ideal tool for iron measurements by the American National Standards Institute (ANSI) and Abrasive Grain Association bulletins.

Iron Measurements with Particulate Systems

Particulate Systems, a division of Micromeritics, has decades of experience in the field of magnetic analysis for an extensive range of markets. We have developed the MA-1040 magnetic analyzer into a simple-to-use, powerhouse tool suitable for the detection and quantification of various magnetic compounds with outstanding sensitivity levels.

If you would like to request a quote or even arrange a demo to experience the iron measurement capabilities of the MA-1040 magnetic analyzer for yourself, simply contact a member of the Particulate Systems team today.

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