Description
Specifications Table
Product Name – Samarium, plasma standard solution, Specpure®, Sm 10,000µg/ml
Quantity/Pack Size – 50ml, 100ml, 500ml
Form – Liquid (aqueous, nitric acid-based)
Grade – Specpure® (ultra-high purity, ≤10 ppb trace metal impurities)
Application – ICP-OES, ICP-MS, AAS calibration; trace elemental analysis
Product Overview
This Specpure® Samarium plasma standard solution delivers exceptional purity at 10,000µg/ml concentration, formulated specifically for demanding plasma spectrometry applications. The solution is prepared in ultra-clean nitric acid matrix (typically 2-5% v/v) to minimize spectral interferences and ensure long-term stability. Each batch undergoes rigorous multi-element analysis via ICP-MS to guarantee ≤10 ppb residual impurities, with certified values traceable to NIST SRMs. The high concentration allows for precise serial dilutions while maintaining analytical integrity, making it ideal for creating multi-point calibration curves. Packaged in HDPE bottles with tamper-evident seals to prevent contamination, the solution remains stable for 24+ months when stored at 15-25°C. The Specpure® grade ensures compatibility with ultra-trace analysis protocols, eliminating background noise that could compromise detection limits in environmental, geological, or materials science applications where samarium quantification is critical.
FAQs
1. What is the exact nitric acid concentration in this samarium standard solution?
The solution typically contains 2-5% v/v ultra-pure nitric acid as the matrix, though the exact concentration may vary slightly between batches. This formulation ensures complete metal solubility while minimizing spectral interferences during plasma analysis.
2. Can this standard be used for both ICP-OES and ICP-MS applications?
Yes, the Specpure® grade is specifically designed for compatibility with both ICP-OES and ICP-MS instruments. The ultra-low impurity profile prevents isobaric interferences in mass spectrometry while providing clean spectral backgrounds for optical emission spectroscopy.
3. What alternatives exist if I need a lower samarium concentration?
For lower concentrations, you can perform serial dilutions using the same nitric acid matrix (2-5% v/v) to maintain consistency. Alternatively, some suppliers offer pre-diluted standards at 1,000µg/ml or 100µg/ml concentrations with matching purity specifications.
4. How should I verify the solution’s concentration before use?
While the solution comes with a certificate of analysis, you can independently verify the concentration by preparing a 1:100 dilution and analyzing it against a secondary samarium standard. Gravimetric verification is also possible by evaporating a known volume and weighing the residue.
5. What storage conditions maximize the shelf life of this standard?
Store the unopened bottle at 15-25°C in its original packaging, away from direct sunlight and sources of contamination. Once opened, tightly reseal after each use and consider transferring smaller aliquots to separate containers to minimize exposure to atmospheric contaminants.
