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A simple method for glass analysis using total reflection X-ray fluorescence spectrometry.

Cassiano L S Costa1, Cláudia T Prais2, Clésia C Nascentes2

  • 1Department of Chemistry, Federal University of Minas Gerais, Av. Presidente Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, Brazil; Radiopharmaceutical Production and Development Unit, Nuclear Technology Development Center, Av. Presidente Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, Brazil.

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Summary
This summary is machine-generated.

A new, cost-effective total reflection X-ray fluorescence (TXRF) method accurately determines multiple elements in glass. This technique successfully differentiates smartphone glass types without calibration, offering a fast and efficient analytical solution.

Keywords:
Glass samplesMulti-elemental methodSuspension samplingTXRF

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Area of Science:

  • Analytical Chemistry
  • Materials Science
  • Spectroscopy

Background:

  • Accurate elemental analysis of glass is crucial for material characterization and quality control.
  • Existing methods for glass analysis can be time-consuming, expensive, or require complex sample preparation.

Purpose of the Study:

  • To develop a simple, cost-effective, and efficient method for determining multiple elements in glass samples.
  • To validate the developed method and assess its applicability in distinguishing different glass types, particularly those used in smartphones.

Main Methods:

  • Suspension sampling combined with total reflection X-ray fluorescence (TXRF) spectroscopy.
  • Optimization of experimental conditions using a multivariate approach and Derringer's desirability function.
  • Validation of the method using standard reference materials (NIST 612) and comparison with Inductively Coupled Plasma Mass Spectrometry (ICP-MS).

Main Results:

  • The TXRF method accurately determined a wide range of elements (Na to Pb) in glass samples with adequate limits of detection and quantification.
  • High accuracy and precision were demonstrated, with results in good agreement with certified values and comparable to ICP-MS.
  • Principal Component Analysis (PCA) enabled perfect discrimination of original smartphone glass and reasonable distinction of soda-lime glass from smartphone screens.

Conclusions:

  • The developed TXRF method is a fast, reagent-efficient, and calibration-free technique for simultaneous multi-element analysis of glass.
  • TXRF is a highly attractive and practical tool for routine glass analysis and material differentiation, especially in forensic or quality control applications.
  • The method's ability to distinguish glass origins highlights its potential for material authentication and identification.