Description
Specifications Table
Product Name – Gold, 10000 ppm ICP single-element standard
Quantity/Pack Size – 100 ml
Form – Liquid (aqueous solution in dilute HNO₃)
Grade – ICP-MS/AA Standard, Traceable to NIST SRM
Application – ICP-OES, ICP-MS, atomic absorption (AA) spectroscopy
Product Overview
The 10000 ppm gold ICP single-element standard is a high-purity liquid reference material formulated for demanding trace metal analysis in spectroscopic techniques. Prepared in a stabilized nitric acid matrix, this standard ensures long-term stability and minimal matrix interference, critical for achieving reproducible results in ICP-OES, ICP-MS, or atomic absorption (AA) workflows. The concentration is rigorously verified against NIST-traceable reference materials, providing confidence in calibration curves and quality control protocols. Its low-particle formulation reduces nebulizer clogging, while the acidified medium prevents precipitation or adsorption losses. The standard is packaged in HDPE bottles with tamper-evident seals to maintain integrity during storage and handling. Each batch undergoes multi-point quality checks, including ICP-MS verification, to guarantee accuracy within ±1% of the stated concentration. Compatible with most autodilution systems, this standard eliminates the need for manual serial dilutions, reducing human error in routine lab operations.
FAQs
1. What is the shelf life of this gold ICP standard when stored properly?
When stored unopened at 15–25°C in its original container, the standard remains stable for 24 months from the date of manufacture. Avoid exposure to direct sunlight or temperature fluctuations.
2. Can this standard be used directly for ICP-MS without further dilution?
The 10000 ppm concentration is typically used as a stock solution. For ICP-MS, dilution to ppb or sub-ppb levels is recommended to match instrument linear ranges and avoid detector saturation.
3. Is this standard compatible with organic solvents for specific applications?
The aqueous nitric acid matrix is optimized for inorganic analysis. For organic solvent compatibility, consider transferring the gold into a solvent like methanol or toluene under controlled conditions, but revalidation of concentration is advised.
4. How does the acid concentration in this standard compare to other commercial gold standards?
The nitric acid concentration is maintained at ~2% (v/v), balancing solubility and instrument compatibility. This is lower than some competitors’ standards (5–10% HNO₃), reducing corrosive wear on sample introduction systems.
5. What alternatives are available if I need a lower concentration of gold for routine analysis?
Pre-diluted gold standards at 1000 ppm or 100 ppm are available for convenience. Alternatively, this 10000 ppm standard can be serially diluted using ultra-pure water and trace-metal-grade acids to achieve target concentrations.
