Description
Specifications Table
Product Name – Molybdenum, AAS standard solution, Specpure®, Mo 1000µg/ml
Quantity/Pack Size – 100ml, 500ml
Form – Liquid (Aqueous Solution)
Grade – Specpure® (Ultra-High Purity)
Application – Atomic Absorption Spectroscopy (AAS), Trace Metal Analysis
Product Overview
This Molybdenum AAS standard solution (1000µg/ml) is formulated using Specpure® grade molybdenum, ensuring exceptional purity and consistency for demanding analytical applications. The solution is stabilized in a high-purity acid matrix to prevent precipitation and maintain long-term stability, making it ideal for calibration curves, quality control, and trace metal quantification. With a certified concentration of 1000µg/ml (±0.5%), this standard eliminates variability in results, providing reliable baseline measurements for atomic absorption spectroscopy (AAS) and ICP-OES/ICP-MS techniques. The Specpure® designation guarantees minimal interference from contaminants like alkali metals, heavy metals, or anions, which is critical for low-level detection limits. Packaged in HDPE bottles with tamper-evident seals, the solution resists leaching and external contamination, preserving integrity during storage. Each batch undergoes rigorous multi-element analysis via ICP-MS to verify compliance with international standards (ISO 17034, NIST traceability). The solution’s homogeneous composition ensures uniform aliquoting, while its acidified base (typically 2-5% HNO₃) prevents microbial growth and metal hydrolysis. For laboratories requiring NABL/ISO 17025 compliance, this standard includes a comprehensive Certificate of Analysis (CoA) with uncertainty statements, expiry validation, and method-specific compatibility notes.
FAQs
1. What is the shelf life of this Molybdenum AAS standard solution when unopened?
The unopened solution has a shelf life of 24 months from the date of manufacture when stored at 15–25°C in its original packaging. Always check the label for the exact expiry date.
2. Can this standard be used for ICP-MS analysis, or is it specifically for AAS?
While optimized for AAS, the ultra-low impurity profile of Specpure® grade makes it suitable for ICP-MS applications, provided the acid matrix is compatible with your instrument’s plasma conditions.
3. What is the typical acid concentration in this solution?
The solution is stabilized in ~2–5% nitric acid (HNO₃), which prevents hydrolysis and microbial contamination without introducing significant spectral interferences.
4. Are there any known incompatibilities with other metals or reagents?
Molybdenum in acidic solutions may form insoluble complexes with phosphate or silicate ions. Avoid mixing with strong reducing agents (e.g., ascorbic acid) or alkaline solutions to prevent precipitation.
5. How should I dispose of expired or unused solution?
Follow local hazardous waste regulations for heavy metal disposal. Neutralize with a compatible base (e.g., NaOH) before disposal, or contact a licensed chemical waste handler for large volumes.
