Description
Specifications Table
Product Name – Thallium, AAS standard solution, Specpure®, Tl 1000µg/ml
Quantity/Pack Size – 100ml, 500ml
Form – Liquid (Aqueous solution in HNO₃)
Grade – Specpure® (Ultra-high purity, 99.999%)
Application – Atomic Absorption Spectroscopy (AAS), ICP-OES, ICP-MS calibration
Product Overview
This Thallium AAS standard solution (1000µg/ml) is formulated with Specpure® grade purity, ensuring minimal interference for ultra-sensitive trace metal analysis. The solution is stabilized in a high-purity nitric acid matrix (2-5% HNO₃), preventing precipitation and maintaining long-term stability. Each batch undergoes rigorous multi-element analysis to confirm the absence of contaminating ions, with certification traceable to NIST SRM standards. The 1000µg/ml concentration provides optimal flexibility for preparing working standards across a wide dynamic range, eliminating dilution errors associated with lower-concentration references. Packaged in HDPE bottles with tamper-evident seals, the solution resists leaching and external contamination. The Specpure® designation guarantees consistency between lots, critical for longitudinal studies or inter-laboratory comparisons. Compatibility with both flame and graphite furnace AAS techniques makes this standard versatile for diverse analytical workflows. The solution’s extended shelf life (24 months unopened) reduces replacement frequency while maintaining analytical integrity.
FAQs
1. What is the exact matrix composition of this Thallium AAS standard?
The solution contains 1000µg/ml Thallium in 2-5% high-purity nitric acid (HNO₃) with <0.1% total dissolved solids, optimized for minimal spectral interference.
2. Can this standard be used directly for ICP-MS analysis without further dilution?
While compatible with ICP-MS, the 1000µg/ml concentration typically requires dilution to ppb levels to avoid detector saturation and matrix effects in most ICP-MS applications.
3. How does the Specpure® grade differ from standard AAS-grade solutions?
Specpure® undergoes additional purification steps to remove trace impurities (e.g., Pb, Bi, Cd) below 10 ppt, ensuring baseline stability in ultra-trace analysis where standard grades may introduce artifacts.
4. What is the recommended storage temperature to maintain stability?
Store unopened at 15-25°C in the original container, protected from light. Avoid refrigeration as temperature fluctuations can compromise the matrix homogeneity.
5. Are the HDPE bottles certified for ultra-trace metal analysis?
The bottles are manufactured from virgin HDPE with certified metal content <1 ppb for Thallium and related elements, tested via ICP-MS to prevent leaching during storage.
