HYDROCHLORIC ACID ANALPURE®

Significance of High-Purity Hydrochloric Acid

Hydrochloric acid of analytical grade purity is a cornerstone reagent across research, quality control and production laboratories. Contaminant levels at trace and ultra-trace scale can critically affect the outcome of sensitive analyses such as trace metal quantification, semiconductor cleaning, pharmaceutical synthesis and environmental monitoring. A certificate of analysis provides confidence in safety, reproducibility and data integrity when using this chemical in demanding applications.

Objectives and Overview

The document under review is a certificate of analysis for Hydrochloric Acid ANALPURE®, batch 2061, supplied by Analytika spol. s r.o. The goal is to verify that the product meets stringent purity criteria specified for key impurities, to ensure its suitability in high-precision workflows. Key parameters include color, assay strength and residual levels of major anions, sulphur, phosphorus, ammonium and a comprehensive panel of inorganic trace metals.

Methodology and Instrumentation

While the certificate does not explicitly list analytical instrumentation, the reported detection limits (down to sub-ppb) and broad elemental scope imply use of advanced techniques such as inductively coupled plasma mass spectrometry (ICP-MS) or atomic emission spectrometry (ICP-OES) for metal profiling, alongside titrimetric or colorimetric methods for assay and common anions. Strict quality control procedures, including calibration with certified standards and routine blank checks, are fundamental to achieve the reported accuracy.

Main Results and Discussion

• Assay: 30 % w/w HCl, confirming concentration within tight tolerances for analytical uses.
• Major impurities: bromide, free chlorine, total sulphur, total phosphorus and ammonium all below specified limits (ranging from <0.01 ppm to <0.5 ppm), ensuring minimal interference in critical applications.
• Trace metals: over 60 elements screened. All measured values fall below maximum permissible concentrations (often <0.1 ppb), demonstrating exceptionally low metal background suitable for trace-level analyses.

The uniformity of results well below detection thresholds highlights the robustness of manufacturing and purification processes, as well as the adequacy of storage recommendations (room temperature, protected from light).

Benefits and Practical Applications

The high purity profile of Hydrochloric Acid ANALPURE® renders it ideal for:

• Ultratrace elemental analysis in environmental and clinical labs
• Preparation of metal standards and calibration solutions
• Semiconductor wafer cleaning and etching processes
• Pharmaceutical synthesis where residual metals must be controlled

Consistent reagent quality reduces analytical uncertainty, contributes to regulatory compliance and enhances throughput.

Future Trends and Opportunities

Advances in analytical instrumentation, such as single-particle ICP-MS and high-resolution tandem MS, will push purity requirements even lower, driving demand for reagents with ever-stricter impurity specifications. Sustainable manufacturing and packaging innovations may also emerge to reduce environmental impact and ensure supply chain resilience.

Conclusion

The certificate confirms that Hydrochloric Acid ANALPURE® batch 2061 exhibits ultra-low levels of inorganic impurities, meeting or exceeding rigorous analytical requirements. This quality assurance supports its deployment in high-sensitivity contexts, promoting reliable data generation and operational efficiency.

References

• Analytika, spol. s r.o. Certificate of Analysis for Hydrochloric Acid ANALPURE®, Batch 2061, Release Date: 18 June 2023.