NITRIC ACID ANALPURE®

Importance of the Topic

High-purity nitric acid is essential for trace-level analyses, sample digestion, and contamination-sensitive procedures in environmental, pharmaceutical, and materials research. Ensuring minimal inorganic and organic impurities supports reliable results in ICP-MS, IC, and other high-resolution techniques.

Goals and Overview

The certificate of analysis verifies that the batch of Analpure® nitric acid meets strict quality criteria. It provides a detailed breakdown of assay, major anions, elemental content, and trace-metal impurities to confirm compliance with analytical-grade specifications.

Methodology and Instrumentation

Although specifics are not detailed, standard approaches include:

• Titrimetric methods for assay determination.
• Ion chromatography for halide and sulfate quantification.
• ICP-MS or ICP-OES for trace-metal profiling.

Main Results and Discussion

The batch exhibits:

• An assay of 69% w/w nitric acid.
• Chloride below 0.2 ppm, total sulfur below 0.3 ppm, and total phosphorus under 0.01 ppm.
• All measured trace elements are below specified maximum concentrations, with most analytes reported below detection limits (e.g., <0.1 ppb for many metals).

These results demonstrate exceptional purity, minimizing the risk of spectral interferences or sample contamination.

Benefits and Practical Application

Certified high-purity nitric acid enables:

• Consistent digestion of diverse matrices with minimal introduction of contaminants.
• Accurate quantification of trace elements in environmental and biological samples.
• Reduced background signals in mass spectrometry and chromatographic analyses.

Future Trends and Possibilities

Advancements may focus on lower detection limits for emerging contaminants, development of ultrapure reagents tailored for single-cell and nanomaterial analyses, and greener production routes that reduce environmental footprint during acid synthesis.

Conclusion

The Analpure® nitric acid batch 3107 demonstrates compliance with rigorous purity standards, ensuring reliable performance in trace-level analytical workflows. Proper storage between 15°C and 25°C and protection from light further safeguard product integrity.

Reference

No external literature references were provided in the source document.