Description
Specifications Table
Product Name – Strontium, plasma standard solution, Specpure®, Sr 1000µg/ml
Quantity/Pack Size – 50ml, 100ml, 500ml
Form – Liquid (aqueous solution in dilute nitric acid)
Grade – Specpure® (ultra-high purity, <10 ppb trace metal impurities)
Application – ICP-OES, ICP-MS, AAS calibration; plasma emission spectroscopy; environmental/geological analysis
Product Overview
This Specpure® strontium plasma standard solution delivers exceptional purity and stability for demanding elemental analysis applications. Formulated at a precise 1000µg/ml concentration in a dilute nitric acid matrix, it eliminates matrix interference while maintaining long-term stability when stored properly. The solution undergoes rigorous multi-stage purification to achieve Specpure® grade standards, with certified trace metal impurities below 10 ppb, ensuring minimal background interference in spectroscopic techniques. Each batch is accompanied by a comprehensive certificate of analysis detailing exact strontium concentration, trace impurities, and expiration date. The solution’s homogeneous composition guarantees consistent performance across ICP-OES, ICP-MS, and atomic absorption spectroscopy platforms. Packaged in HDPE bottles with tamper-evident seals, the solution resists contamination during storage and handling. The nitric acid base (typically 2-5%) prevents strontium precipitation while maintaining compatibility with most autosampler systems. For laboratories requiring NIST-traceable standards, this solution provides documented traceability through our ISO 17034 accredited production process.
FAQs
1. What is the shelf life of this strontium standard solution when unopened?
The unopened solution maintains its certified concentration for 24 months from the date of manufacture when stored at 15-25°C in its original packaging. Always verify the expiration date on the certificate of analysis.
2. Can this standard be used for both ICP-OES and ICP-MS applications?
Yes, the solution is specifically formulated for compatibility with both ICP-OES and ICP-MS systems. The ultra-low trace metal impurities (<10 ppb) make it particularly suitable for ICP-MS applications where background interference must be minimized.
3. What material are the bottles made from and are they autoclavable?
The solution comes in HDPE (high-density polyethylene) bottles that are chemically resistant to the nitric acid matrix. While HDPE can typically withstand autoclaving at 121°C, we recommend against autoclaving as it may affect the certified concentration.
4. How does the nitric acid concentration affect the solution’s performance?
The 2-5% nitric acid matrix serves multiple purposes: it stabilizes the strontium in solution, prevents precipitation, and matches the acidity of most sample digestion protocols. This concentration is optimized to minimize matrix effects during analysis while maintaining solution stability.
5. Is this solution compatible with organic solvents for sample preparation?
This aqueous standard is not designed for direct mixing with organic solvents. For organic sample preparation, we recommend using our organometallic standards or preparing appropriate dilutions in a compatible solvent system.
