Optical Emission Metal Analysis Spectrometers

Metal Analysis Spectrometers | Optical Emission Spectrometer (OES) Systems

Optical Emission Spectrometers (OES) are advanced analytical instruments that determine the elemental chemical composition of metals and alloys within seconds, with minimal or no sample preparation. They are the industry-standard analysis method in foundries, steel production, aluminum casting, automotive, aerospace, and defense — wherever material quality is critical.

What Is an Optical Emission Spectrometer (OES)?

An Optical Emission Spectrometer (OES) is a spectroscopic instrument used for the elemental analysis of metal samples. The device excites the sample surface using a high-energy spark or arc discharge, then separates the emitted light by wavelength to calculate the concentration of each element present.

Also known as Spark-OES or Arc-OES, this method is one of the most widely used techniques in the world for determining the chemical composition of metals.

How Does Optical Emission Spectrometer (OES) Work?

1. Sample Preparation: The metal sample is ground flat and positioned on the electrode stand.
2. Excitation: A high-voltage spark is generated between the electrode and the sample, vaporizing a small amount of material into plasma.
3. Emission: Excited atoms emit light at characteristic wavelengths specific to each element.
4. Detection: The emitted light is directed through an optical system to CCD or PMT detectors.
5. Calculation: Software compares measured emission intensities against reference calibration curves and reports each element's concentration in % or ppm.

Total analysis time: Typically 20–60 seconds.

Key Features and Advantages of OES Spectrometers

• High Speed: Simultaneous analysis of 30+ elements in a single measurement within seconds.
• High Sensitivity: Measurements down to ppm (parts per million) and even ppb (parts per billion) levels.
• Wide Element Range: C, Si, Mn, P, S, Cr, Ni, Mo, Cu, Al, Ti, V, Nb, Co, Pb, Sn, N, O, H and many more.
• Wide Material Coverage: Steel, stainless steel, cast iron, aluminum alloys, copper alloys, nickel superalloys, titanium, zinc, lead and tin alloys.
• Low Operating Cost: A critical advantage over XRF — OES can measure light elements such as carbon (C) and sulfur (S).
• Standards Compliance: Produces results compliant with ASTM E415, EN 10002, ISO 14284 and other international standards.
• User Friendly: GNR's intuitive software interface allows full productivity with minimal training.

Application Areas for Metal Analysis Spectrometers

Why GNR Spectrometers?

GNR Analytical Instruments (Italy) has been a globally recognized manufacturer of optical emission spectrometers since 1985. Key advantages of GNR systems:

• High-resolution Paschen-Runge optical design
• Economic operating mode that minimizes argon gas consumption
• Long-life CMOS and PMT detector technology
• Automatic calibration and standardization software
• More than 5,000 installed systems worldwide

Why Anka Analitik?

With over 20 years of experience, Anka Analitik is the sole authorized distributor and certified service center for GNR spectrometers in Turkey.

✔ Installation and commissioning

✔ Application-specific calibration and method development

✔ Spare parts and consumables supply

✔ Periodic maintenance and calibration services

✔ Operator and technical training programs

✔ 24/7 phone technical support