High-Resolution Spectroscopy in Plasma and Flame

This article is based on a poster originally authored by Oliver Buettel.

Geological specimens and final products are regularly analyzed for major and trace components. Analytical specimens can contain a high volume of dissolved solids. Matrix effects on analytical results commonly occur, and adjustments must be made. A skilled technician is required to correct spectral and non-spectral interference results because of complex sample composition.

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Application:

Cobalt Smelter QC

  • Specimens contain 1 g/L Co and ppm-concentrations of contaminants
  • ICP-OES: High resolution removes all interference. However, Co-matrix needs matrix-matched calibration.
  • HR-CS AAS: Similar performance with no need for matrix-matched calibration.
  • High resolution allows access to interfered lines (see spectra below).

Ni 231.604nm ICP-OES spectrum, resolution 6-8pm. Severe interference from Co matrix. (Competitor).

Ni 231.604nm ICP-OES spectrum, resolution 6-8pm. Severe interference from Co matrix. (Competitor). Image Credit: Analytik Jena US

Ni 231.604nm ICP-OES spectrum, resolution 2-3pm. Interference completely resolved. Analytik Jena PQ9000 Elite

Ni 231.604nm ICP-OES spectrum, resolution 2-3pm. Interference completely resolved. Analytik Jena PQ9000 Elite. Image Credit: Analytik Jena US

Ni 232.003nm HR-CS AAS spectrum, resolution 2-3pm. AAS spectra are less complex. Analytik Jena contrAA®.

Ni 232.003nm HR-CS AAS spectrum, resolution 2-3pm. AAS spectra are less complex. Analytik Jena contrAA®. Image Credit: Analytik Jena US

Application:

Trace Contaminants in Ultra-Pure Tungsten

  • Specimens contain 10 g/L W and 4% HF.
  • Tungsten is a line-rich element requiring high-resolution analyses.
  • A low dilution and high matrix tolerance is required to obtain the best detection limits.
  • Recovery of 97-103% for 12 elements in a certified sample was realized.
  • Higher resolution gives the advantage of using sensitive lines for most elements.
  • Detection limits of < 1 mg/kg for most elements, with all <3 mg/kg.

Mo 202.030nm ICP-OES spectrum, resolution 2-3pm. Analytik Jena PQ9000 Elite.

Mo 202.030nm ICP-OES spectrum, resolution 2-3pm. Analytik Jena PQ9000 Elite. Image Credit: Analytik Jena US

V 290.881nm ICP-OES spectrum, resolution 2-3pm. Analytik Jena PQ9000 Elite

V 290.881nm ICP-OES spectrum, resolution 2-3pm. Analytik Jena PQ9000 Elite. Image Credit: Analytik Jena US

Analytik Jena Technology

HR-CS AAS contrAA® 800

  • High-Resolution Continuum Source AAS (HR-CS AAS)
  • Offers a single light source for all elements and molecules and provides true multi-element AAS.
  • There are lower spectral and non-spectral interferences than with any other method.
  • The technology is reliable and easy, like an AAS.
  • It is as quick and adaptable as an ICP-OES Atomic Absorption.

How to Achieve High-Resolution Spectroscopy in Plasma and Flame

Image Credit: Analytik Jena US

HR Array ICP-OES PlasmaQuant® PQ9000 Elite

  • Robust, vertical plasma - best performance with extended stability and a movable alignment-free torch
  • Industry-leading detection limits and matrix handling with easy maintenance and lower consumable usage
  • Engineered for excellence, the ICP can handle the toughest samples. The plasma generator has generous power reserves to process challenging samples

How to Achieve High-Resolution Spectroscopy in Plasma and Flame

. Image Credit: Analytik Jena US

High Resolution Spectrometer with CCD Detection

  • Highest resolution in ICP-OES and AAS: 2 pm @ 200 nm
  • The contrAA® and PlasmaQuant® eliminate interference backed up by a 10-year long-term warranty and advanced background correction.
  • Engineered for excellence with Dual View PLUS, which provides reliable results without operator input.
  • It has the most comprehensive working range and easy specimen preparation.

How to Achieve High-Resolution Spectroscopy in Plasma and Flame

. Image Credit: Analytik Jena US

Conclusion

High-resolution spectroscopy eliminates the need for theorizing spectrum evaluation and corrections. PlasmaQuant® and contrAA® facilitate new applications and provide a new level of performance. The Flame HR-CS AAS is a genuine alternative to ICP-OES.

PlasmaQuant® and contrAA® provide exceptional sensitivity and a wide working range, are user-friendly and easy to maintain, and have a proven record of processing the most difficult specimens.

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This information has been sourced, reviewed and adapted from materials provided by Analytik Jena US.

For more information on this source, please visit Analytik Jena US.

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