Description
Specifications Table
Product Name – Arsenic, plasma standard solution, Specpure®, As 1000µg/ml
Quantity/Pack Size – 100ml, 50ml, 500ml
Form – Liquid (aqueous solution in nitric acid)
Grade – Specpure® (ultra-high purity, traceable)
Application – ICP-OES, ICP-MS, AAS, environmental/toxicology testing
Product Overview
This Specpure® arsenic plasma standard solution delivers unmatched precision for trace metal analysis, formulated at a 1000µg/ml concentration in a stabilized nitric acid matrix to prevent precipitation and ensure long-term stability. The ultra-high purity grade eliminates matrix interferences, making it ideal for calibration curves in ICP-OES, ICP-MS, and atomic absorption spectroscopy (AAS) workflows. Each batch undergoes rigorous multi-point certification against NIST-traceable reference materials, with certified values provided for arsenic content (±0.5% tolerance). The solution’s low background impurity profile (<10 ppb for most common contaminants) minimizes signal noise, while the nitric acid base (2-5% v/v) ensures compatibility with most plasma instruments without requiring additional dilution steps. Packaged in HDPE bottles with tamper-evident seals, the solution resists leaching and contamination during storage. The 100ml, 50ml, and 500ml pack sizes accommodate both high-throughput labs and occasional users, with the 500ml option offering cost efficiency for frequent calibration needs. The solution’s 24-month shelf life under proper storage (15-25°C, protected from light) reduces replacement frequency, while the dropper-cap design on smaller sizes enables precise aliquoting without cross-contamination risks.
FAQs
1. What is the exact nitric acid concentration in this arsenic standard solution?
The solution contains 2-5% v/v high-purity nitric acid as the stabilizing matrix, optimized for plasma instrument compatibility without requiring neutralizers.
2. Can this standard be used directly for ICP-MS without further dilution?
While the 1000µg/ml concentration is suitable for ICP-OES, ICP-MS typically requires dilution to ppb levels (1:1000 or higher) to avoid detector saturation and matrix effects.
3. How does the Specpure® grade differ from analytical reagent grade arsenic standards?
Specpure® standards undergo additional purification steps to reduce background impurities below 10 ppb for most metals, with tighter certification tolerances (±0.5% vs ±2% for AR grade).
4. What’s the recommended storage protocol to maintain stability?
Store upright at 15-25°C in the original HDPE bottle, tightly sealed and protected from direct light. Avoid freezing, as this may alter the nitric acid matrix.
5. Are the 50ml and 100ml bottles made from the same HDPE material as the 500ml?
Yes, all pack sizes use identical high-density polyethylene (HDPE) with low-leachable additives, ensuring consistent performance across volumes.
