TRM - Ce, Co, Li, Mg, Tl, Y - Aqueous calibration solution ASTASOL® TUNE25

Importance of the Topic

The availability of accurate calibration solutions is crucial for precise quantification in various spectrometric and electroanalytical techniques. Reliable reference materials ensure traceability, accuracy, and consistency in analytical workflows, supporting quality control in research and industrial laboratories.

Study Objectives and Overview

This document describes the preparation and characterization of a multi-element aqueous calibration solution, ASTASOL® TUNE25, containing Ce, Co, Li, Mg, Tl, and Y at trace levels. The purpose is to provide a reliable calibrator for techniques such as AAS, AES, ICP-OES, ICP-MS, molecular absorption spectrometry, and electroanalysis.

Methodology and Instrumentation

• Gravimetric preparation using high-purity primary compounds (purities ≥ 99.98%).
• Matrix composed of 2% (v/v) sub-boiling distilled HNO3 and ultrapure water (resistivity ≥ 18 MΩ·cm).
• Value assignment and uncertainty evaluation based on gravimetric dilution and traceability to NIST SRMs through AAS, AES, and ICP-OES calibrations.
• Intended calibration techniques: AAS, AES, ICP-OES, ICP-MS, molecular absorption spectrometry, and selected electroanalytical methods.

Main Results and Discussion

The solution provides an assigned concentration of 1.00 ± 0.01 μg/L for each analyte at 20 °C. Trace impurities are below 0.005 μg/L, demonstrating high purity. Homogeneity and stability studies confirm consistent performance over the one-year shelf life when stored between 5–30 °C and handled according to instructions.

Benefits and Practical Applications

• Supports accurate multi-element calibration in various atomic and molecular spectrometric methods.
• Enhances data quality in research, quality assurance, and industrial analytics.
• Simplifies workflow by offering a ready-to-use solution with certified traceability and uncertainty data.

Future Trends and Potential Applications

Ongoing advances in spectrometric instrumentation and lower detection limits will demand reference materials with even lower uncertainties and extended element coverage. Customizable multi-element solutions and miniaturized calibration kits may become standard to address emerging analytical challenges in environmental monitoring, biomedical research, and materials science.

Conclusion

ASTASOL® TUNE25 is a reliable multi-element calibration solution with certified traceability to NIST SRMs. Its high purity, stability, and documented uncertainty make it an essential tool for precise quantitative analysis across a wide range of spectrometric and electroanalytical techniques.

Used Instrumentation

• Atomic Absorption Spectrometry (AAS)
• Atomic Emission Spectrometry (AES)
• Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES)
• Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
• Molecular Absorption Spectrometry
• Electroanalytical Methods