VWR®, Potassium standard solution, 1,000 mg/L K in dilute nitric acid AVS TITRINORM standard for AAS

The VWR® Potassium Standard Solution is a high-purity, certified reference material developed for use in atomic absorption spectroscopy (AAS) and related instrumental analysis techniques. Containing 1000 mg/L potassium (K) in a 2% nitric acid (HNO₃) matrix, this solution ensures reliable performance in calibration, quality control, and routine trace metal analysis.

Manufactured and tested in ISO Guide 34 and ISO 17025-accredited laboratories, this standard is traceable to SRM from NIST, offering a high level of metrological accuracy. Each bottle is supplied with a Certificate of Analysis (CoA) indicating the real concentration with a certified tolerance of ±0.3%.

Key Features

• Certified 1000 mg/L potassium reference solution in 2% HNO₃
• Traceable to NIST SRM for dependable calibration
• Manufactured under ISO Guide 34 / ISO 17025 standards
• Supplied with Certificate of Analysis
• Accuracy: ±0.3% of labeled value
• Ideal for AAS, ICP-OES, ICP-MS, and other elemental analysis methods
• Suitable for regulatory testing, quality control, and method validation

Chemical and Technical Specifications

Available Packaging

Applications

• Calibration of AAS and ICP instruments for potassium detection
• Trace element testing in environmental, food, and pharmaceutical samples
• Laboratory proficiency testing and inter-laboratory comparisons
• Use in method validation, compliance testing, and regulatory audits

VWR® Potassium Standard Solution (1000 mg/L, AVS TITRINORM) is a high-quality, certified reference solution designed for trace metal analysis in regulated and research laboratories. With NIST traceability, ISO-accredited production, and a tight accuracy specification, it ensures consistency and reliability for instrument calibration and quantitative elemental testing.