Description
Specifications Table
Product Name – Sulfur, plasma standard solution, Specpure®, S 10,000µg/ml
Quantity/Pack Size – 50ml, 100ml, 500ml
Form – Liquid (aqueous solution in high-purity acid matrix)
Grade – Specpure® (ultra-high purity, <5 ppb metallic impurities)
Application – ICP-OES, ICP-MS, AAS calibration; environmental, geological, and industrial trace sulfur analysis
Product Overview
This Specpure® sulfur plasma standard solution delivers exceptional purity and stability at a concentration of 10,000µg/ml, designed specifically for demanding trace elemental analysis in plasma spectroscopy techniques. Formulated in a high-purity acid matrix, it minimizes matrix interferences while ensuring long-term stability—critical for reproducible calibration curves in ICP-OES, ICP-MS, and atomic absorption spectroscopy (AAS). The Specpure® grade guarantees ultra-low background contamination (<5 ppb for most metallic impurities), making it ideal for applications requiring maximum sensitivity, such as environmental monitoring, geological sample analysis, or industrial process control. Each batch undergoes rigorous quality control with NIST-traceable certification, providing documented accuracy for compliance with ISO 17025 and GLP standards. The solution’s homogeneous composition eliminates precipitation risks, while the amber glass packaging with PTFE-lined caps prevents leaching or evaporation. Compatible with most autodilution systems, this standard reduces lab workflow bottlenecks by offering ready-to-use convenience without compromising analytical integrity. Its broad linear dynamic range accommodates both high-concentration industrial samples and ultra-trace detection limits, ensuring versatility across diverse analytical protocols.
FAQs
1. What is the shelf life of this Specpure® sulfur standard solution when stored unopened?
The unopened solution remains stable for 24 months from the date of manufacture when stored at 15–25°C in its original packaging, protected from light and moisture. Always verify the expiration date on the label.
2. Can this standard be used directly for ICP-MS analysis without further dilution?
While the 10,000µg/ml concentration is suitable for ICP-OES, direct use in ICP-MS may exceed the instrument’s linear range for sulfur. We recommend diluting to 1–100 µg/ml using ultra-pure diluents (e.g., 2% HNO₃) for optimal ICP-MS performance.
3. What matrix is used in this sulfur standard, and is it compatible with organic solvents?
The solution is prepared in a high-purity nitric acid matrix (typically 2–5% v/v). It is not designed for organic solvent compatibility; mixing with solvents like acetone or methanol may cause precipitation or instability.
4. How does the Specpure® grade differ from standard analytical-grade sulfur solutions?
Specpure® standards undergo additional purification steps to reduce metallic impurities to <5 ppb, compared to typical analytical grades (50–100 ppb). This ensures minimal spectral interferences in ultra-trace analysis, particularly for sulfur determinations in complex matrices.
5. Is this standard traceable to NIST or other international reference materials?
Yes, the concentration is certified against NIST-traceable reference materials, with uncertainty statements provided in the Certificate of Analysis (CoA). The CoA also includes lot-specific data for quality assurance.
