Description
Specifications Table
Product Name – Bismuth, plasma standard solution, Specpure®, Bi 10,000μg/ml
Quantity/Pack Size – 50ml, 100ml, 500ml
Form – Liquid (aqueous solution)
Grade – Specpure® (ultra-high purity)
Application – ICP-OES, AAS, plasma spectrometry calibration
Product Overview
This Bismuth plasma standard solution (Specpure® grade, 10,000µg/ml) is meticulously formulated for high-precision analytical applications requiring ultra-low impurity levels. The solution is prepared using Specpure®-grade bismuth metal dissolved in high-purity nitric acid, ensuring exceptional stability and homogeneity. Its 10,000µg/ml concentration provides optimal sensitivity for plasma-based techniques like ICP-OES and AAS, eliminating the need for frequent dilutions while maintaining linear calibration curves. The solution undergoes rigorous quality control, including ICP-MS verification, to guarantee accuracy within ±0.5% of the stated concentration. Packaged in HDPE bottles with tamper-evident seals, it resists contamination and light-induced degradation. The matrix is optimized for compatibility with most plasma spectrometry instruments, reducing background interference. Each batch includes a certificate of analysis with traceability to NIST standards, making it ideal for laboratories requiring ISO 17025 compliance. The extended shelf life of 24 months (when stored at 15-25°C) ensures cost-effective inventory management without compromising performance.
FAQs
1. What is the matrix composition of this Bismuth standard solution?
The solution is prepared in 2-5% v/v high-purity nitric acid (HNO₃) using ultrapure water (18.2 MΩ·cm) as the solvent. The exact matrix composition is detailed in the certificate of analysis provided with each batch.
2. Can this standard be used directly for ICP-MS analysis without further dilution?
While the 10,000µg/ml concentration is suitable for ICP-OES, it typically requires dilution to 1-100µg/ml range for ICP-MS to avoid detector saturation and matrix effects. Always verify instrument-specific requirements before use.
3. How does the Specpure® grade differ from standard analytical grades?
Specpure® grade undergoes additional purification steps to remove metallic and anionic impurities below 10 ppb levels, whereas standard analytical grades may contain impurities up to 100 ppb. This makes it superior for trace analysis where background interference must be minimized.
4. What precautions should be taken during storage to maintain stability?
Store the unopened bottle at 15-25°C in its original packaging, away from direct sunlight and heat sources. After opening, tightly reseal the bottle and use within 6 months for optimal accuracy. Avoid freezing as it may alter the solution homogeneity.
5. Is this solution compatible with organic solvents for specialized applications?
The aqueous nitric acid matrix is not miscible with most organic solvents. For organic-based applications, consider evaporating the solution to dryness under controlled conditions and redissolving in your solvent of choice, though this may affect concentration accuracy.
