Description
Specifications Table
Product Name – Gold, AAS standard solution, Specpure®, Au 1000µg/ml
Quantity/Pack Size – 100ml, 500ml
Form – Liquid (aqueous solution)
Grade – Specpure® (ultra-high purity, AAS/ICP grade)
Application – Atomic absorption spectroscopy (AAS), ICP-OES, trace metal analysis
Product Overview
This Specpure® Gold AAS standard solution delivers 1000µg/ml of ultra-pure gold in a stabilized aqueous matrix, engineered for unmatched precision in atomic absorption spectroscopy (AAS) and inductively coupled plasma optical emission spectrometry (ICP-OES). The solution is prepared using Specpure®-grade gold metal dissolved in high-purity nitric acid, ensuring minimal matrix interferences and exceptional long-term stability. Each batch undergoes rigorous quality control, including multi-element interference testing and NIST-traceable certification, to guarantee accuracy within ±0.5% of the stated concentration. The low-particulate formulation eliminates sedimentation risks, while the amber glass packaging with PTFE-lined caps prevents contamination and photodegradation. Compatible with most modern spectrometers, this standard requires no additional dilution for routine calibration curves (1-100ppm range) and maintains stability for 24+ months when stored at 15-25°C. The solution’s ultra-low background absorbance (<0.002 AU at 242.8nm) makes it ideal for ultra-trace gold determinations in environmental, geological, and industrial samples.
FAQs
1. What is the shelf life of this gold 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. Avoid exposure to direct sunlight or temperature fluctuations.
2. Can this standard be used for ICP-MS applications?
While primarily designed for AAS/ICP-OES, the solution can be used for ICP-MS after appropriate dilution (typically 1:1000) to avoid detector saturation. Verify compatibility with your specific ICP-MS instrument settings.
3. What is the matrix composition of this gold standard?
The solution contains 2-5% v/v high-purity nitric acid as the stabilizing matrix, with residual impurities <10ppb for most common interferents (e.g., Cu, Fe, Pb).
4. How should I dispose of unused gold standard solution?
Follow local hazardous waste regulations for heavy metal disposal. Neutralize with sodium carbonate before disposal if required by your institution’s chemical waste protocol.
5. Is this solution compatible with mercury-free lab environments?
Yes, the solution contains no added mercury or mercury compounds. The production process follows mercury-free protocols to comply with modern lab safety standards.
