Description
Specifications Table
Product Name – Selenium 82, 82Se, plasma standard solution, Specpure®, 82Se 10µg/ml 50ml
Quantity/Pack Size – 50ml
Form – Liquid (aqueous solution)
Grade – Specpure® (ultra-high purity)
Application – ICP-MS, ICP-OES, atomic spectroscopy, plasma calibration
Product Overview
This Specpure® Selenium-82 (82Se) plasma standard solution delivers unmatched purity and precision for advanced spectroscopic applications. Formulated at a 10µg/ml concentration in a 50ml pack, it is engineered for minimal matrix interference, ensuring accurate calibration and quantification in plasma-based techniques like ICP-MS and ICP-OES. The Specpure® grade guarantees ultra-low contaminant levels, with traceability to NIST or equivalent standards, making it ideal for research-grade analyses where reproducibility is critical. The solution is stabilized in high-purity acids to prevent selenium precipitation or volatility, maintaining long-term homogeneity. Its sealed packaging minimizes oxidative degradation, while the certified concentration eliminates the need for in-house dilution in most protocols. Compatible with aut samplers and high-throughput systems, this standard solution reduces background noise and enhances signal stability, even at trace detection limits. The 50ml volume balances cost-efficiency with sufficient quantity for repeated calibrations or method development without frequent replenishment.
FAQs
1. What is the shelf life of this Specpure® Selenium-82 standard solution when unopened?
The unopened solution remains stable for 24 months from the date of manufacture when stored at 15–25°C in its original packaging. Avoid exposure to direct sunlight or temperature fluctuations.
2. Can this 82Se standard be used for isotope ratio measurements in MC-ICP-MS?
Yes, the Specpure® grade’s ultra-low interference profile and certified isotopic composition make it suitable for multi-collector ICP-MS applications, though matrix matching with samples is recommended for optimal accuracy.
3. Is this solution compatible with organic solvents for sample preparation?
The aqueous-based solution is primarily designed for direct plasma introduction. For organic solvent compatibility, pre-dilution with a miscible solvent like methanol or acetone may be required, but this could alter the calibration curve.
4. How does the 10µg/ml concentration compare to other selenium standards for ICP?
This mid-range concentration is optimized for most environmental, geological, and biological samples, offering a balance between sensitivity and linear dynamic range. For ultra-trace analysis, further dilution with 2% HNO₃ is typical.
5. What documentation is provided with this standard for quality assurance?
Each batch includes a Certificate of Analysis (CoA) detailing the exact concentration, uncertainty, expiry date, and traceability to primary standards, along with recommended storage and handling instructions.
