Description
Specifications Table
Product Name – Tantalum, plasma standard solution, Specpure®, Ta 1000μg/ml
Quantity/Pack Size – 50ml, 100ml, 500ml
Form – Liquid (aqueous solution in HNO₃/HF matrix)
Grade – Specpure® (ultra-high purity, ≤10 ppb trace impurities)
Application – ICP-OES, ICP-MS, AAS calibration; semiconductor, metallurgy, and environmental testing
Product Overview
This Tantalum plasma standard solution (1000µg/ml) is manufactured under stringent Specpure® protocols to deliver unmatched purity and consistency for critical analytical applications. Dissolved in a stabilized nitric acid/hydrofluoric acid matrix, it minimizes precipitation and ensures homogeneous distribution of Ta ions, eliminating the need for pre-dilution shaking. The solution’s ultra-low trace metal contamination (≤10 ppb for most elements) makes it ideal for high-sensitivity techniques like ICP-MS, where matrix effects and spectral interferences must be rigorously controlled. Each batch undergoes multi-point calibration verification against NIST-traceable references, with certificates of analysis provided for lot-specific accuracy. The amber HDPE bottles with tamper-evident seals prevent photodegradation and contamination, while the 24-month stability at room temperature reduces storage constraints. Compatible with most autosamplers, the solution’s viscosity and surface tension are optimized to prevent needle clogging or carryover in automated systems. For labs requiring custom concentrations, the 1000µg/ml baseline allows precise serial dilutions without compromising linearity. The absence of organic stabilizers ensures clean burnout during sample preparation, critical for solid residue analysis in metallurgical or semiconductor workflows.
FAQs
1. What is the typical detection limit when using this Tantalum standard in ICP-MS?
The solution supports detection limits as low as 0.01 ppb (10 ppt) for Tantalum in optimized ICP-MS conditions, depending on instrument sensitivity and sample matrix. Background equivalence concentrations are provided in the CoA for method validation.
2. Can this standard be used directly for AAS analysis without further dilution?
For flame AAS, the 1000µg/ml concentration is too high and requires dilution to 1–10 µg/ml range. Graphite furnace AAS may tolerate slightly higher concentrations (up to 50 µg/ml), but matrix modifiers like Pd/Mg(NO₃)₂ are recommended to prevent carbide formation.
3. How does the HF content in the matrix affect compatibility with glassware?
The solution contains ≤2% HF, which will etch soda-lime glass over time. Use PTFE, PP, or HDPE labware for storage and handling. For volumetric dilutions, Class A borosilicate glassware can be used briefly if rinsed immediately with deionized water.
4. What alternatives exist for labs avoiding HF-based matrices?
For HF-free options, consider Tantalum standards in pure HNO₃ or HCl matrices, though these may require ultrasonic agitation before use due to potential Ta₂O₅ precipitation. Note that HF-free standards often have reduced shelf life (12 months vs. 24 months).
5. Are the bottles recyclable, and how should empty containers be disposed of?
The HDPE bottles (resin code #2) are recyclable if thoroughly rinsed with deionized water. For disposal, neutralize residual acid with NaHCO₃, then rinse and dispose of as non-hazardous plastic waste per local regulations. Never incinerate sealed containers.
