Description
Specifications Table
Product Name – Selenium, plasma standard solution, Specpure®, Se 1000µg/ml
Quantity/Pack Size – 100ml, 50ml, 500ml
Form – Liquid solution
Grade – Specpure® (ultra-high purity)
Application – Atomic absorption spectroscopy (AAS), ICP-OES, ICP-MS, trace metal analysis
Product Overview
The Specpure® Selenium Plasma Standard Solution (1000µg/ml) is a high-purity reference material designed for precise quantitative analysis in advanced spectroscopic techniques. Formulated with ultra-low impurity levels, this solution ensures accurate calibration and validation of selenium measurements in complex matrices. The Specpure® grade guarantees exceptional consistency, minimizing matrix interference and background noise for reliable data interpretation. This solution is stabilized in a high-purity acid matrix to prevent precipitation and maintain long-term stability. The 1000µg/ml concentration provides optimal sensitivity for trace analysis while allowing easy dilution for lower concentration requirements. The solution undergoes rigorous quality control testing, including ICP-OES and ICP-MS verification, to ensure certified accuracy within ±1% of the stated concentration. Packaged in high-density polyethylene bottles with tamper-evident seals, it maintains integrity during storage and handling. The solution’s homogeneous composition eliminates the need for pre-treatment, saving valuable lab time while delivering reproducible results across multiple analytical runs.
FAQs
1. What is the shelf life of this selenium plasma standard solution?
The solution remains stable for 24 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 solution be used directly for ICP-MS analysis?
Yes, the solution is compatible with ICP-MS systems. However, we recommend verifying the acid matrix concentration matches your instrument’s requirements, as some systems may require additional dilution.
3. What acid matrix is used in this selenium standard?
The solution is stabilized in a nitric acid matrix, which provides excellent solubility for selenium while maintaining long-term stability of the 1000µg/ml concentration.
4. How does the Specpure® grade differ from standard analytical grades?
Specpure® grade undergoes additional purification steps to remove trace metallic impurities, resulting in lower background interference and higher accuracy for ultra-trace analysis compared to standard analytical grades.
5. What dilution protocol is recommended for preparing working standards?
For most applications, serial dilution using 2% nitric acid as the diluent maintains stability. A typical protocol involves preparing intermediate standards at 100µg/ml and 10µg/ml concentrations before final working standards.
