Chemical Analysis

We are experts in the chemical characterization of glass, glass ceramics, and inorganic materials. The characterization includes the determination of chemical composition, the analysis of trace-level impurities, and the investigation of physicochemical properties.
Typical questions

Typical questions

  • Quantitative determination of material composition with high precision and reproducibility: quality control and material or process development, patent issues
  • Overview analyses of chemical composition: rapid identification and problem solving
  • Trace and ultra-trace analysis: material qualification, error analysis, RoHS certificates
  • Investigation of primary pharmaceutical packaging materials (e.g., tests according to pharmacopoeias, inorganic extractable and leachable components, silicone content)
  • Determination of chemical resistance, leaching and corrosion behavior
  • XRF, HR-ICP-MS, ICP-MS, LA-ICP-MS, ICP-OES, AAS, wet chemical methods, IC, VGA, species analysis
Methods in detail

Methods in detail

Quantitative chemical composition

High-precision analysis of elements for the main components as well as traces in inorganic materials
<h3>Quantitative chemical composition</h3>
Melt preparation of XRF samples

Procedures

  • Wet chemical methods
    • Titration, gravimetry, photometry, FAAS
  • Solid-state analysis methods
    • X-ray fluorescence analysis (XRF), laser ablation ICP-MS, combustion gas ion chromatography (combustion IC for halogens)

Applications

  • Precise analysis of main components down to trace levels (few mg/kg) in known and unknown samples
  • Specification testing, quality control, material qualification
  • Material or process development, patent issues
  • RoHS certificates
  • Failure analysis

Trace and ultra-trace analysis

Even the smallest impurities in glass, glass ceramics, and other materials can have a major impact on their chemical and physical properties. Trace and ultra-trace analysis offers the possibility of making these impurities visible.
<h3>Trace and ultra-trace analysis</h3>
Preparation of powder samples

Procedures

State-of-the-art digestion methods and highly sensitive analytical instruments enable trace and ultra-trace analysis in extremely low concentrations, down to the parts per billion (ppb) range. Working in clean rooms allows to conduct analyses under controlled conditions. In addition to the analysis of digested samples, trace and ultra-trace analysis is also possible directly on the solid sample (including depth profile).

  • Wet chemical methods
    • HR-ICP-MS, FAAS, G-FAAS
  • Solid-state analysis methods
    • X-ray fluorescence analysis (XRF), laser ablation ICP-MS, combustion gas ion chromatography

Applications

  • Analysis of minor components and impurities from a few percent down to the ppb range in glass, glass ceramics, and raw materials
  • Material qualification
  • Fault analysis

Redox species determination

Certain elements can be present in glass melts in different oxidation states. Properties such as color, light absorption, and stability of glasses, or the refining behavior and viscosity of glass melts, are related to the redox state.
<h3>Redox species determination</h3>
Preparation of powder samples

Procedures

  • Wet chemistry + UV-VIS
  • Wet chemistry + redox titration
  • Hydride AAS
  • (HR-)ICP-MS

Applications

Over the years, we have acquired comprehensive expertise in analyzing the redox states of specific elements in glass and glass ceramics. Take advantage of our extensive portfolio and let our experts advise you.

Species analysis is used to determine the redox state of elements such as iron, chromium, tin, arsenic, cerium, titanium, and others on request.

Chemical resistance

Testing the chemical resistance of glass to water, acids, alkalis, and other chemicals in accordance with national and international standards as well as individual requirements.
<h3>Chemical resistance</h3>
Test for acid resistance of glass

Procedures

The chemical resistance of glass and its reaction behavior depend on the respective glass composition. Benefit from our extensive test portfolio and let our experts create a test plan tailored to your process. 

Applications

  • Standard Testing of hydrolytic resistance  ISO 719, ISO 720, EP 3.2.1, USP <660>, JP 7.01, etc.
  • Tests according to DIN 12116, ISO 695, YBB, and many more.
  • Testing the bioaccessibility of glass for classification according to REACH, CLP, and landfill regulations
  • Extraction tests adapted to the area of application
  • Customized corrosion tests
  • Extractable components
  • Wet chemical etching processes and process development
  • Cleaning evaluation and validation

Organic analysis

Organic materials are found as components or parts in all conceivable products and, due to their complex composition, often influence the performance of the overall product.
<h3>Organic analysis</h3>
Pyr-GC-MS

Procedures

Quantitative and qualitative analysis of organic compounds

Applications

  • Pyr-GC-MS
    • Composition and identity of complex polymers, adhesives, coatings, resins
    • Additives and impurities in polymers and other materials
    • Inhomogeneities, inclusions
    • Degree of curing of e.g. adhesives, resins
  • Silicone determination
  • Carbon differentiation
  • Ash content
  • FT-IR
  • Quantitative determination of VOCs (e.g., formaldehyde, benzene, toluene, etc.)
List of our methods

Our methods of chemical analysis

  • X-ray fluorescence spectroscopy (XRF) (accredited)
  • Mass Spectrometry - ICP-MS, HR-ICP-MS, Laser Ablation ICP-MS (accredited)
  • Atomic Absorption Spectrometry F-AAS, GF-AAS (accredited)
  • Atomic Emission Spectrometry ICP-OES (accredited)
  • Wet chemistry - gravimetry (accredited)
  • Wet chemistry - titration, (accredited)
  • Wet chemistry - photometry, (accredited)
  • Wet chemistry - species analysis
  • Vapor gas analysis: C, S determination (accredited)
  • Ion chromatography - IC (accredited)
  • Combustion Ion Chromatography - C-IC (accredited)
  • Chemical durability tests (accredited)
  • Autoclaves and pressure vessels for chemical durability testing (accredited)
  • Etching facility
  • Gas Chromatography Mass Spectrometry - Pyr-/TD-GC-MS
Highlights
Procedure
Contact

Contact our experts

Whether you want to develop innovative products or ensure compliance with regulations in regulated industries, the expertise of the accredited SCHOTT laboratory ensures your success through measurable excellence.
Dr. Michael Drisch

Dr. Michael Drisch

Head of Chemical Analysis

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