Description
Specifications Table
Product Name – Gallium, plasma standard solution, Specpure®, Ga 1000µg/ml
Quantity/Pack Size – 50ml, 100ml, 500ml
Form – Liquid (aqueous solution in nitric acid)
Grade – Specpure® (ultra-high purity, <10 ppb contaminants)
Application – ICP-OES, ICP-MS, AAS calibration; trace metal analysis; plasma spectroscopy
Product Overview
This Specpure® gallium plasma standard solution delivers 1000µg/ml concentration in a nitric acid matrix, engineered for unmatched precision in plasma-based analytical techniques. The ultra-high purity grade (Specpure®) ensures minimal background interference with contaminant levels strictly controlled below 10 ppb, making it ideal for calibration curves in ICP-OES, ICP-MS, and atomic absorption spectroscopy. The solution’s stability is enhanced through acidification with high-purity nitric acid (typically 2-5% v/v), preventing gallium hydrolysis or precipitation over extended storage periods. Each batch undergoes rigorous multi-point certification against NIST-traceable reference materials, with certificates of analysis provided for lot-specific accuracy verification. The amber HDPE bottle with tamper-evident seal protects against photodegradation and contamination, while the leak-proof PP cap with PTFE liner ensures compatibility with aggressive acid matrices. For laboratories requiring sub-ppb detection limits, this standard eliminates matrix effects that plague lower-grade alternatives, reducing the need for complex sample preparation. The 1000µg/ml concentration allows flexible dilution to working ranges without compromising linearity, and the nitric acid base ensures compatibility with most plasma instruments without requiring additional matrix matching.
FAQs
1. What is the shelf life of this gallium standard solution when stored unopened?
The solution remains stable for 24 months from the date of manufacture when stored unopened at 15-25°C in its original amber bottle. Exposure to temperature extremes or direct sunlight may reduce stability.
2. Can this standard be used directly for ICP-MS without further dilution?
Direct use is not recommended for most ICP-MS applications due to the 1000µg/ml concentration, which exceeds typical instrument linear ranges. Dilution to 1-100 ppb working concentrations is standard practice for ICP-MS analysis.
3. What material is used for the bottle and cap to prevent contamination?
The solution is packaged in high-density polyethylene (HDPE) bottles with polypropylene (PP) caps lined with PTFE. This combination resists acid corrosion and prevents leaching of metallic contaminants.
4. How does the nitric acid concentration affect the solution’s compatibility with different instruments?
The 2-5% v/v nitric acid matrix is optimized for plasma instruments, but some AAS systems may require neutralization or additional matrix modifiers. Always verify instrument-specific requirements before use.
5. Are there alternatives available for lower concentration requirements?
For applications requiring ready-to-use lower concentrations, consider pre-diluted standards at 10µg/ml or 100µg/ml, though these may have reduced shelf life compared to the 1000µg/ml concentrate.
