Description
Specifications Table
Product Name – Strontium, AAS standard solution, Specpure®, Sr 1000µg/ml
Quantity/Pack Size – 100ml, 500ml
Form – Liquid
Grade – Specpure® (Traceable, High Purity)
Application – Atomic Absorption Spectroscopy (AAS), ICP-OES, ICP-MS calibration
Product Overview
This Strontium AAS standard solution from Specpure® delivers exceptional purity and consistency for demanding analytical applications. Formulated at a concentration of 1000µg/ml, it is manufactured under stringent quality controls to ensure minimal matrix interference and long-term stability. The Specpure® grade guarantees traceability to NIST or equivalent reference materials, making it ideal for calibration curves, method validation, and routine analysis in atomic absorption spectroscopy (AAS), ICP-OES, and ICP-MS workflows. The solution is packaged in high-density polyethylene (HDPE) bottles to prevent contamination and leaching, with tamper-evident seals for integrity assurance. Its low acidity matrix (typically nitric acid-based) minimizes spectral overlaps while maintaining solubility across dilution ranges. Each batch undergoes rigorous testing for heavy metal impurities, particulate matter, and concentration verification via primary reference methods. The extended shelf life—when stored at 15–25°C away from direct light—reduces frequency of recalibration, optimizing lab efficiency. Compatible with most autodilution systems, this standard eliminates variability introduced by manual preparation, ensuring reproducible results in research, environmental testing, and industrial quality control.
FAQs
1. What is the matrix composition of this Strontium AAS standard?
The solution is typically prepared in a dilute nitric acid matrix (2–5% v/v) to ensure complete dissolution of strontium while minimizing spectral interferences from other acids or anions.
2. Can this standard be used for ICP-MS analysis without further dilution?
For ICP-MS, further dilution is usually required due to the high sensitivity of the technique. A 1:100 or 1:1000 dilution with 2% nitric acid is commonly recommended to avoid detector saturation and matrix effects.
3. How does the Specpure® grade differ from analytical reagent (AR) grade standards?
Specpure® standards undergo additional purification steps and are certified for traceability to primary reference materials, with tighter tolerances for impurity levels (often <10 ppb for critical interferents) compared to AR grade, which may contain higher residual metals.
4. What is the recommended storage condition to maintain stability?
Store the unopened bottle at 15–25°C in its original packaging, away from direct sunlight and sources of heat or ignition. Once opened, reseal tightly and use within 12 months for optimal accuracy.
5. Are there alternatives for lower concentration requirements?
For applications requiring <1000µg/ml concentrations, serial dilution using ultra-pure nitric acid (e.g., 2% v/v) and Class A volumetric glassware is recommended to prepare working standards from this stock solution.
