Description
Specifications Table
Product Name – Calcium, plasma standard solution, Specpure®, Ca 10,000µg/ml
Quantity/Pack Size – 50ml, 100ml, 500ml
Form – Liquid (aqueous solution)
Grade – Specpure® (ultra-high purity, ICP-MS/AAS grade)
Application – Plasma emission spectroscopy, atomic absorption calibration, trace metal analysis
Product Overview
This Specpure® calcium plasma standard solution delivers exceptional purity and stability for demanding analytical applications, featuring a certified concentration of 10,000µg/ml calcium in a low-matrix aqueous formulation. Engineered for plasma emission spectroscopy and atomic absorption calibration, the solution undergoes rigorous multi-stage purification to eliminate contaminants, ensuring minimal spectral interference and superior baseline stability. The Specpure® grade guarantees lot-to-lot consistency with NIST-traceable certification, making it ideal for laboratories requiring ultra-reliable standards for trace metal quantification. Packaged in high-density polyethylene bottles with tamper-evident seals, the solution maintains its integrity during storage and transport. Its acidified matrix (2-5% HNO₃) prevents precipitation while extending shelf life without compromising accuracy. Compatible with most ICP-OES, ICP-MS, and AAS instruments, this standard eliminates the need for complex sample preparation, reducing procedural errors. The 10,000µg/ml concentration allows for precise serial dilutions across a wide analytical range, from ppm to ppb levels, while the ultra-low background ensures detection of minor calcium variations in complex samples.
FAQs
1. What is the shelf life of this calcium plasma 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. Always check the expiration date on the label before use.
2. Can this standard be used directly for ICP-MS analysis without dilution?
While the 10,000µg/ml concentration is suitable for some ICP-OES applications, ICP-MS typically requires dilution to ppb levels (1-100µg/L range) to prevent detector saturation and matrix effects.
3. What material are the bottles made of, and are they compatible with organic solvents?
The bottles are constructed from high-density polyethylene (HDPE), which is resistant to dilute acids and bases but not compatible with organic solvents like acetone or hexane.
4. How does the acid matrix (HNO₃) affect the standard’s performance in alkaline samples?
The 2-5% HNO₃ matrix stabilizes the calcium ions but may require neutralization when analyzing highly alkaline samples to prevent precipitation or pH-induced signal drift.
5. Is this standard traceable to NIST or other international reference materials?
Yes, the concentration is certified against NIST-traceable reference materials, with full documentation provided in the Certificate of Analysis included with each batch.
