Specifications Table

Product Name – Tungsten, AAS standard solution, Specpure®, W 1000µg/ml
Quantity/Pack Size – 100ml, 500ml
Form – Liquid solution
Grade – Specpure® (high-purity, traceable)
Application – Atomic absorption spectroscopy (AAS), trace metal analysis

Product Overview

The Tungsten AAS Standard Solution (1000µg/ml) from Specpure® delivers exceptional purity and consistency for demanding atomic absorption spectroscopy (AAS) applications. Formulated with ultra-high-grade tungsten, this solution ensures minimal interference and maximum accuracy in trace metal analysis, making it indispensable for laboratories requiring reliable calibration and quantification. The Specpure® certification guarantees traceability to NIST standards, eliminating batch-to-batch variability while maintaining long-term stability. Packaged in high-density polyethylene (HDPE) bottles, the solution resists contamination and degradation, preserving its integrity during storage and handling. Its 1000µg/ml concentration provides optimal sensitivity for low-level tungsten detection, reducing dilution errors and improving workflow efficiency. Compatible with most AAS instruments, this standard solution adheres to ISO 17034 and ISO Guide 31 requirements, ensuring compliance with international quality protocols. Whether used for environmental monitoring, material testing, or research applications, this tungsten standard delivers reproducible results with minimal matrix effects, streamlining analytical processes without compromising precision.

FAQs

1. What is the shelf life of this tungsten AAS standard solution?

The solution remains stable for 24 months from the date of manufacture when stored unopened at 15–25°C in its original packaging. Always check the expiration date on the label before use.

2. Can this solution be used with ICP-OES or ICP-MS instruments?

While optimized for AAS, the high purity of this Specpure® tungsten standard makes it compatible with ICP-OES and ICP-MS, though matrix effects should be evaluated for specific applications.

3. How should I handle potential contamination during dilution?

Use Class A volumetric glassware and ultrapure water (18.2 MΩ·cm) for dilutions. Avoid metal pipettes or containers; opt for PTFE or polypropylene labware to prevent tungsten adsorption.

4. Is this solution certified for pharmaceutical or food testing?

The Specpure® grade meets general analytical requirements but lacks specific certifications for GMP or food safety. For regulated industries, verify compliance with additional validation protocols.

5. What alternatives exist for lower tungsten concentrations?

Dilute this 1000µg/ml standard with 2% HNO₃ (v/v) to achieve working concentrations. For pre-diluted options, explore tungsten standards at 100µg/ml or 10µg/ml from the same Specpure® line.