Description
Specifications Table
Product Name – Scandium, plasma standard solution, Specpure®, Sc 10,000µg/ml
Quantity/Pack Size – 50ml, 100ml, 500ml
Form – Liquid (Aqueous solution in HNO₃)
Grade – Specpure® (Ultra-high purity, 99.999% trace metals basis)
Application – ICP-OES, ICP-MS, AAS calibration; trace element analysis in plasma matrices
Product Overview
This Scandium plasma standard solution (10,000µg/ml) from the Specpure® range delivers exceptional purity and consistency for demanding spectroscopic applications. Formulated in a high-purity nitric acid matrix, it eliminates matrix interference while ensuring long-term stability—critical for reproducible results in plasma-based techniques. The solution undergoes rigorous multi-stage purification to remove trace contaminants, achieving a 99.999% metals basis purity that exceeds ASTM Type I water standards. Each batch is accompanied by a certificate of analysis detailing elemental impurities via ICP-MS, with detection limits as low as parts-per-trillion for key interferents like Fe, Cu, and Zn. The 10,000µg/ml concentration provides optimal dynamic range for serial dilutions, reducing preparation errors while maintaining linearity across six orders of magnitude. Housed in HDPE bottles with tamper-evident seals, the solution resists leaching and UV degradation, preserving integrity during storage. Compatibility with Class A volumetric glassware ensures precise aliquoting, while the low-viscosity formulation minimizes dispensing errors. For laboratories requiring NIST-traceable standards, this solution offers lot-specific traceability documentation upon request, simplifying ISO 17025 compliance.
FAQs
1. What is the shelf life of this Scandium plasma standard solution when unopened?
The unopened solution maintains its certified concentration for 24 months from the date of manufacture when stored at 15–25°C in its original container. Avoid exposure to direct sunlight or temperature fluctuations above 30°C, as this may accelerate nitric acid degradation.
2. Can this standard be used directly for ICP-MS without further dilution?
Direct use is not recommended due to the 10,000µg/ml concentration, which exceeds typical ICP-MS linear ranges. For most instruments, a 1:1000 to 1:10,000 dilution with 2% HNO₃ is required to achieve optimal signal response (0.1–100 µg/L working range). Always verify compatibility with your instrument’s plasma conditions.
3. How does the Specpure® grade differ from standard analytical grades?
Specpure® undergoes an additional zone-refining purification step and is tested for 70+ elemental impurities via high-resolution ICP-MS, whereas standard grades typically report only 10–20 elements. The nitric acid matrix is also distilled in PTFE stills to reduce silicon and boron backgrounds, critical for semiconductor and geochemical applications.
4. What materials are the bottles and caps made of, and are they resistant to nitric acid?
The primary container is HDPE (high-density polyethylene) with a PP (polypropylene) tamper-evident cap, both rated for long-term contact with ≤10% HNO₃. The bottles meet USP Class VI and EU 10/2011 standards for leachables, with extractable metal levels <0.1 ppb. For ultra-trace work, pre-rinse the bottle interior with 18.2MΩ·cm water before first use.
5. Is this solution compatible with organic solvents for sample preparation?
No. The aqueous nitric acid matrix is immiscible with most organic solvents (e.g., hexane, toluene). For organic-based samples, evaporate the standard to dryness under nitrogen at 60°C, then reconstitute in your solvent of choice. Note that this may alter the scandium speciation and requires revalidation of calibration curves.
