Description
Specifications Table
Product Name – Tungsten, plasma standard solution, Specpure®, W 10,000µg/ml
Quantity/Pack Size – 50ml, 100ml, 500ml
Form – Liquid (aqueous solution)
Grade – Specpure® (ultra-high purity)
Application – ICP-OES, ICP-MS, AAS calibration, trace analysis
Product Overview
This tungsten plasma standard solution is formulated with Specpure® grade tungsten at a precise 10,000µg/ml concentration, ensuring exceptional accuracy for spectroscopic techniques. The aqueous matrix is optimized for compatibility with plasma-based instrumentation, minimizing matrix effects and background interference. Each batch undergoes rigorous quality control to guarantee consistency in elemental purity, with contaminants reduced to sub-ppb levels. The solution’s stability is enhanced through acidification, preventing precipitation or adsorption losses during storage. Packaged in HDPE bottles with tamper-evident seals, it maintains integrity during transport and long-term use. The high concentration allows for flexible dilution, accommodating a wide range of calibration curves without compromising precision. Ideal for laboratories requiring NIST-traceable standards, this solution eliminates the need for in-house preparation, reducing procedural errors and saving time. Its compatibility with automated sample handlers further streamlines workflows in high-throughput environments.
FAQs
1. What is the shelf life of this tungsten 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 standard be used for both ICP-OES and ICP-MS applications?
Yes, the Specpure® grade and ultra-low impurity profile make it suitable for both techniques, though dilution may be required for ICP-MS to avoid detector saturation.
3. What acid is used to stabilize this tungsten solution?
The solution is stabilized with high-purity nitric acid (HNO₃), ensuring complete dissolution of tungsten and long-term homogeneity.
4. Is this standard traceable to NIST or other reference materials?
The concentration is verified against primary tungsten standards traceable to NIST SRMs, with certification provided in the COA.
5. Are there any special disposal requirements for this solution?
As a heavy metal-containing solution, it must be disposed of as hazardous waste according to local environmental regulations. Neutralization may be required before disposal.
