Description
Specifications Table
Product Name – Potassium, AAS standard solution, Specpure®, K 1000µg/ml
Quantity/Pack Size – 500ml, 100ml
Form – Liquid (aqueous solution)
Grade – Specpure® (ultra-high purity)
Application – Atomic Absorption Spectroscopy (AAS) calibration, trace analysis
Product Overview
This Potassium AAS standard solution (1000µg/ml) from Specpure® is engineered for unmatched precision in atomic absorption spectroscopy (AAS). Formulated with ultra-high-purity potassium (K) in a stabilized aqueous matrix, it eliminates matrix interferences to deliver consistent, reproducible results across calibration curves and trace-level determinations. The Specpure® grade ensures minimal impurities (<10 ppb for most metals), making it the preferred choice for laboratories requiring NIST-traceable standards. Each batch undergoes rigorous quality control, including ICP-OES verification, to guarantee concentration accuracy within ±0.5%. The solution’s long-term stability (12+ months when stored properly) reduces recalibration frequency, while its compatibility with most AAS instruments—including flame and graphite furnace systems—simplifies workflow integration. Housed in HDPE bottles with tamper-evident seals, it resists leaching and contamination, preserving integrity from first to last use. Whether for environmental testing, pharmaceutical analysis, or material science, this standard solution meets ISO 17025 and GLP compliance requirements, ensuring data defensibility in regulated environments.
FAQs
1. What is the shelf life of this Potassium AAS standard solution?
The solution remains stable for 12 months from the date of manufacture when stored unopened at 15–25°C. Once opened, use within 6 months for optimal accuracy.
2. Can this standard be used with graphite furnace AAS?
Yes, it is compatible with both flame and graphite furnace AAS systems. For graphite furnace use, further dilution may be required depending on your instrument’s sensitivity.
3. Is this solution traceable to NIST or other reference materials?
Yes, the concentration is traceable to NIST SRMs via an unbroken chain of comparisons, with certification documentation provided for each batch.
4. What diluent is used in this standard solution?
The solution is prepared in a matrix of ultra-pure water with <0.1% v/v nitric acid to ensure stability and minimize ionic interferences.
5. Are there lower concentration alternatives available for this potassium standard?
Lower concentrations (e.g., 100µg/ml or 10µg/ml) can be prepared by serial dilution using the provided certificate of analysis as a reference.
