Description
Specifications Table
Product Name – Boron, plasma standard solution, Specpure®, B 1000µg/ml
Quantity/Pack Size – 50ml, 100ml, 500ml
Form – Liquid (aqueous solution in HNO₃)
Grade – Specpure® (ultra-high purity, <10 ppb impurities)
Application – ICP-OES, ICP-MS, AAS calibration; trace boron analysis in environmental/plasma samples
Product Overview
This Boron plasma standard solution (1000µg/ml) is formulated with Specpure® grade boron in a stabilized nitric acid matrix, ensuring exceptional accuracy for plasma-based spectroscopic techniques. The solution undergoes rigorous multi-stage purification to eliminate metallic and anionic contaminants, achieving impurity levels below 10 ppb for critical elements (e.g., Na, K, Fe, Si). Its homogeneous composition and certified concentration (±0.5% tolerance) make it ideal for creating calibration curves in ICP-OES, ICP-MS, and atomic absorption spectroscopy (AAS) without matrix interference. The nitric acid base (2% v/v) enhances long-term stability while preventing boron adsorption to container walls. Each batch is supplied with a certificate of analysis detailing traceability to NIST SRMs and lot-specific impurity profiles. The solution’s extended shelf life (24 months unopened) and compatibility with autosamplers reduce lab downtime. For applications requiring lower concentrations, the solution can be gravimetrically diluted using 1% HNO₃ as the diluent, maintaining linear response across six orders of magnitude.
FAQs
1. Can this boron standard be used directly for ICP-MS analysis without further dilution?
The 1000µg/ml concentration is typically too high for direct ICP-MS analysis and requires dilution to the ppb range (e.g., 1:1000 or 1:10,000) using 1% HNO₃ to avoid detector saturation and ensure optimal sensitivity. Always verify your instrument’s linear dynamic range before analysis.
2. What is the difference between Specpure® and standard reagent-grade boron solutions?
Specpure® standards undergo additional purification steps (e.g., sub-boiling distillation, ion exchange) to reduce metallic impurities to <10 ppb, whereas reagent-grade solutions may contain up to 100–500 ppb of contaminants like Ca, Mg, or Al, which can interfere with trace analysis or require blank corrections.
3. How should this solution be stored to maintain stability over time?
Store unopened bottles at 15–25°C in the original HDPE container, away from direct sunlight and ammonia vapors. After opening, tighten the cap immediately to minimize nitric acid evaporation, and use within 6 months. For long-term storage of diluted aliquots, transfer to FEP or PFA vials and refrigerate at 4°C.
4. Is this standard compatible with organic solvents for sample preparation?
The aqueous nitric acid matrix is miscible with polar organic solvents like methanol or acetone (up to 20% v/v) but may phase-separate with nonpolar solvents (e.g., hexane, toluene). For organic extractions, consider evaporating an aliquot to dryness and redissolving in the desired solvent, or use a boron standard pre-dissolved in an organic matrix.
5. What alternatives are available if I need a boron standard in a different concentration or matrix?
Alternatives include boron standards at 10µg/ml or 100µg/ml (pre-diluted for ICP-MS), boron in HCl matrix (for AAS), or solid boron compounds like boric acid (H₃BO₃, 99.999% purity) for custom preparations. For plasma applications, ensure the alternative matches your sample’s acidity and ionic strength to avoid matrix effects.
