Description
Specifications Table
Product Name – Praseodymium, plasma standard solution, Specpure®, Pr 10,000µg/ml
Quantity/Pack Size – 50ml, 100ml, 500ml
Form – Liquid (aqueous solution in nitric acid)
Grade – Specpure® (ultra-high purity, 99.999% trace metals basis)
Application – ICP-OES, ICP-MS, AAS calibration; trace element analysis
Product Overview
This Praseodymium plasma standard solution (10,000µg/ml) is formulated using Specpure® grade raw materials, ensuring exceptional purity and minimal matrix interference for critical analytical applications. The solution is stabilized in high-purity nitric acid (2-5% v/v), providing long-term stability and resistance to precipitation or microbial growth. Each batch undergoes rigorous multi-element analysis via ICP-MS to guarantee accuracy within ±0.5% of the certified concentration, with full traceability to NIST SRM standards. The ultra-low background impurity profile (<10 ppb for most common contaminants) makes it ideal for ultra-trace analysis where spectral overlaps or signal suppression must be minimized. Packaged in HDPE bottles with tamper-evident seals, the solution is compatible with most autosampler systems and requires no additional dilution for standard calibration curves. The nitric acid matrix ensures complete ionization in plasma-based techniques while preventing analyte adsorption to container walls. For laboratories requiring the highest confidence in rare earth element quantification, this standard delivers unmatched consistency across instruments and operators.
FAQs
1. What is the shelf life of this Praseodymium 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 the original container. The nitric acid matrix provides chemical stability, but we recommend verifying the certificate of analysis for batch-specific expiration.
2. Can this standard be used directly for ICP-MS analysis without further dilution?
While the 10,000µg/ml concentration is suitable for preparing working standards, direct aspiration may exceed the linear range of most ICP-MS instruments. We recommend a 1:100 or 1:1000 dilution using 2% nitric acid to achieve optimal signal intensity (typically 1-100 µg/L for Praseodymium).
3. How does the Specpure® grade differ from standard reagent-grade Praseodymium solutions?
Specpure® grade undergoes additional purification steps including sub-boiling distillation and ion exchange to reduce background impurities to <10 ppb for most elements. Standard reagent grades often contain 100-1000x higher levels of contaminants like Ca, Fe, or Na, which can interfere with ultra-trace analysis.
4. What precautions should be taken when handling this nitric acid-based solution?
Always use in a fume hood with nitrile gloves and safety goggles. The 2-5% nitric acid matrix is corrosive and can cause skin burns. Neutralize spills with sodium bicarbonate before cleanup. Avoid contact with organic materials to prevent violent reactions. Store away from bases and reducing agents.
5. Is this solution compatible with autosamplers using PFA or FEP tubing?
Yes, the solution is fully compatible with PFA, FEP, and other fluoropolymer tubing commonly used in autosamplers. The nitric acid matrix prevents analyte adsorption to tubing walls, ensuring consistent uptake volumes. We recommend rinsing the system with 2% nitric acid between samples to prevent carryover.
