Description
Specifications Table
Product Name – Holmium, AAS standard solution, Specpure®, Ho 1000μg/ml
Quantity/Pack Size – 100ml, 500ml
Form – Liquid (aqueous solution in dilute HNO₃)
Grade – Specpure® (ultra-high purity, ≤10 ppb impurities)
Application – Atomic Absorption Spectroscopy (AAS), ICP-OES/MS calibration, trace metal analysis
Product Overview
This Holmium AAS standard solution from Specpure® delivers exceptional purity and consistency for demanding trace metal analysis applications. Formulated at a precise 1000µg/ml concentration in a stabilized nitric acid matrix, it ensures minimal matrix interference and long-term stability. The Specpure® grade guarantees ultra-low impurity levels (≤10 ppb for most contaminants), making it ideal for baseline corrections and multi-element calibration curves in AAS, ICP-OES, and ICP-MS systems. Each batch undergoes rigorous quality control with NIST-traceable certification, providing documented accuracy for critical analytical workflows. The solution’s homogeneous composition eliminates precipitation risks, while the acidified base prevents microbial growth during storage. Packaged in HDPE bottles with tamper-evident seals, it maintains integrity during transport and lab handling. Compatible with most autodilution systems, this standard reduces preparation time while improving reproducibility across instruments. Its broad linear dynamic range accommodates both high-sensitivity environmental testing and industrial process control applications where holmium serves as an internal standard or analyte of interest.
FAQs
1. What is the shelf life of this Holmium AAS standard solution when unopened?
The unopened solution remains stable for 24 months from the date of manufacture when stored at 15-25°C in its original packaging. Always verify the expiration date on the certificate of analysis.
2. Can this standard be used for ICP-MS applications alongside AAS?
Yes, the Specpure® grade’s ultra-low impurity profile makes it suitable for ICP-MS applications, though you may need to dilute it further depending on your instrument’s sensitivity requirements and the expected holmium concentrations in your samples.
3. What diluent is recommended for preparing working standards from this solution?
Use 2% v/v high-purity nitric acid (HNO₃, trace metal grade) as the diluent to maintain matrix consistency and prevent holmium hydrolysis or precipitation during dilution.
4. How does the Specpure® grade differ from standard AAS-grade holmium solutions?
Specpure® standards undergo additional purification steps to reduce impurity levels to ≤10 ppb for most elements, compared to typical AAS grades that may contain 100-1000 ppb impurities. This makes them ideal for ultra-trace analysis where background interference must be minimized.
5. Is this solution compatible with automated sample preparation systems?
The solution’s homogeneous composition and acid-stabilized matrix make it compatible with most autodiluters and automated liquid handling systems, though we recommend verifying compatibility with your specific instrument’s tubing materials (PTFE or PFA are typically safe).
