VWR® ARISTAR® Potassium Standard Solution (K) for ICP

The VWR® ARISTAR® Potassium Standard Solution is a high-purity single-element certified reference material (CRM) designed for accurate calibration and validation of ICP-OES, ICP-MS, and AAS analytical methods.

Prepared from potassium nitrate (KNO₃) in 2–5% nitric acid (HNO₃), this solution provides excellent stability, traceability, and analytical precision for potassium determination in environmental, food, pharmaceutical, and industrial applications.

Each standard is traceable to SRMs from the National Institute of Standards and Technology and manufactured under ISO 17034 / ISO/IEC 17025 accredited facilities, ensuring reliable and compliant analytical performance.

Key Features & Benefits

1. NIST-Traceable Certified Standard

• Traceable to certified SRMs from NIST
• Ensures accuracy, reproducibility, and regulatory compliance

2. High-Purity ARISTAR® Grade

• Manufactured under strict quality control
• Suitable for trace and ultra-trace potassium analysis

3. Ready-to-Use Calibration Solution

• Pre-prepared in 2–5% nitric acid matrix
• Minimizes preparation errors and contamination risks

4. Multi-Technique Compatibility

• Suitable for:
  • ICP-OES
  • ICP-MS
  • AAS

5. Flexible Concentration Options

• Available in:
  • 1000 mg/L (ppm)
  • 10000 mg/L (ppm)
• Supports wide calibration ranges and dilution flexibility

Applications

• Potassium analysis in water and environmental samples
• Food and beverage testing (electrolyte and nutritional analysis)
• Agricultural and soil analysis
• Pharmaceutical and clinical laboratory testing
• Calibration and validation of ICP and AAS instruments

Technical Specifications

Ordering Information

Analytical Significance

Potassium (K) is an essential element monitored in:

• Environmental and water quality testing
• Food and nutritional analysis
• Agricultural and soil fertility studies
• Clinical and pharmaceutical applications

These standards enable:

• Accurate quantification of potassium concentrations
• Reliable instrument calibration and validation
• Compliance with international analytical and regulatory standards

Unique Advantages

• NIST-traceable for analytical confidence
• Ready-to-use format minimizes handling errors and contamination
• Compatible with ICP-OES, ICP-MS, and AAS techniques
• Available in multiple concentration and volume options
• Trusted ARISTAR® quality from Avantor

The VWR® ARISTAR® Potassium Standard Solution is a high-precision calibration standard essential for laboratories performing trace elemental analysis. Its certified composition, traceability, and compatibility with ICP and AAS techniques ensure accurate, reproducible, and compliant analytical results across a wide range of applications.