Description
Specifications Table
Product Name – Heavy Metals, plasma standard solution, Specpure®, Ag, As, Ba, Cd, Cr, Hg, Pb, Se @ 100µg/ml
Quantity/Pack Size – 100ml, 500ml
Form – Liquid (aqueous solution in 2-5% HNO₃)
Grade – Specpure® (ultra-high purity for trace analysis)
Application – ICP-MS/OES calibration, environmental testing, toxicology studies
Product Overview
This Specpure® heavy metals plasma standard solution delivers exceptional accuracy for trace metal analysis, featuring eight critical elements (silver, arsenic, barium, cadmium, chromium, mercury, lead, and selenium) at a precise 100µg/ml concentration. Formulated in 2-5% nitric acid matrix, it ensures complete solubility and long-term stability, eliminating precipitation risks that plague inferior standards. The ultra-high purity grade meets ASTM Type I water specifications with <10 ppt total impurities, making it ideal for demanding applications where matrix interference must be minimized. Each batch undergoes rigorous multi-point calibration verification against NIST-traceable reference materials, with certificates of analysis providing element-specific recovery data. The solution’s extended shelf life of 24 months when stored at 15-25°C in its original amber glass bottle protects light-sensitive components like mercury. Unlike single-element standards, this multi-component blend reduces preparation time by 70% while maintaining ±1% concentration tolerance across all analytes. The 2-5% HNO₃ matrix matches typical sample digestion protocols, eliminating the need for additional dilution steps that could introduce contamination.
FAQs
1. What is the exact nitric acid concentration in this standard solution?
The solution contains 2-5% trace metal grade nitric acid as the stabilizing matrix, optimized for compatibility with most ICP instruments without requiring additional acidification.
2. Can this standard be used for both ICP-MS and ICP-OES applications?
Yes, the 100µg/ml concentration is suitable for both techniques, though ICP-MS users may need to perform additional dilutions for optimal sensitivity in the ppb range.
3. How does the Specpure® grade differ from standard analytical grades?
Specpure® standards undergo additional purification steps to achieve <10 ppt total impurities and are verified against NIST-traceable materials, unlike standard grades which typically have 100-1000x higher background contamination.
4. What is the recommended storage protocol to maintain stability?
Store upright at 15-25°C in the original amber glass bottle with the cap tightly sealed. Avoid exposure to direct sunlight or temperature fluctuations above 30°C which may affect mercury stability.
5. Are the element concentrations certified individually or as a composite?
Each element undergoes independent certification with recovery data provided in the COA. The ±1% concentration tolerance applies to all eight metals separately, not as a combined value.
