CRM Tin (Sn) - Aqueous calibration solution ASTASOL® AN7055FN

Aqueous Calibration Solution ASTASOL® AN7055FN Certified Reference Material

Importance of the Topic

Certified reference materials (CRMs) play a critical role in ensuring accuracy and consistency in quantitative chemical analysis. The availability of well-characterized standards underpins method validation, quality assurance, and regulatory compliance across environmental, industrial, and research laboratories.

Objectives and Overview

This certificate describes the preparation, certification and intended use of an aqueous calibration solution containing tin (Sn) at a certified concentration. It summarizes the material’s characterization, uncertainty evaluation, traceability and application guidelines.

Methodology and Instrumentation

• Gravimetric preparation ensuring direct traceability to the SI unit (kg).
• Verification of tin concentration by complexometric titration using SRM NIST 928.
• Determination of trace impurities via AAS, ICP-OES and ICP-MS for user information.

Key Results and Discussion

The certified concentration of tin is 10.00 ± 0.05 mg/L (expanded uncertainty, k=2) corresponding to 9.76 ± 0.07 mg/kg at 20 °C. The density is 1.0249 ± 0.0005 g/cm³. Homogeneity and stability assessments confirm consistency over a two-year shelf life when stored at 5–30 °C. Trace impurities are reported below detection limits and should not be used for calibration.

Benefits and Practical Applications

• Calibration of atomic spectrometry methods (AAS, AES, ICP-OES, ICP-MS).
• Validation of molecular absorption and electroanalytical techniques.
• Supports quality control in environmental monitoring, industrial processing and research laboratories.

Future Trends and Possibilities for Use

Future developments may include multi-element CRM formulations, digital certification platforms integrating blockchain for enhanced traceability, and adaptation to more complex matrices to address emerging analytical needs.

Conclusion

ASTASOL® AN7055FN provides a reliable, SI-traceable tin calibration standard with well-defined uncertainty, facilitating accurate and comparable analytical results across diverse spectrometric and electroanalytical applications.

Reference

Analytika, spol. s r.o., Certificate AN7055FN, Version 01, 07.03.2023.