Description
Specifications Table
Product Name – Platinium standard solution, 1 g/L AAS single-element standard
Quantity/Pack Size – 500 ml
Form – Liquid (1% HNO₃ matrix)
Grade – AAS Standard (Traceable to NIST SRM)
Application – Atomic Absorption Spectroscopy (AAS), ICP-OES, ICP-MS calibration
Product Overview
This platinum standard solution delivers a certified 1000 mg/L (1 g/L) concentration in a stabilized 1% nitric acid matrix, engineered for unmatched precision in atomic absorption spectroscopy (AAS) and inductively coupled plasma (ICP) techniques. The solution undergoes rigorous multi-point calibration against NIST-traceable reference materials, ensuring ±0.5% concentration accuracy with batch-specific certificates of analysis. Its ultra-low impurity profile (sub-ppb levels for common interferents like gold, palladium, and rhodium) eliminates matrix effects in trace platinum analysis, while the nitric acid matrix prevents precipitation and maintains homogeneity for extended shelf life. Packaged in HDPE bottles with tamper-evident seals, the solution resists leaching and contamination, with each batch tested for long-term stability under accelerated aging protocols. The 500 ml format balances cost-efficiency with reduced handling risks, featuring a wide-mouth design for easy aliquoting without cross-contamination. Compatible with all major AAS/ICP instrument brands, this standard requires no additional dilution for most platinum analysis protocols, streamlining workflows in environmental, geological, and materials science laboratories where platinum quantification demands sub-ppm sensitivity.
FAQs
1. What is the exact matrix composition of this platinum standard?
The solution uses a 1% v/v ultra-pure nitric acid matrix (prepared from 69% HNO₃, trace metal grade) with 18.2 MΩ·cm deionized water, ensuring complete platinum solubility and minimal background interference during analysis.
2. Can this standard be used for ICP-MS applications without modification?
Yes, the solution is directly compatible with ICP-MS systems, though some laboratories may prefer additional dilution (typically 1:10 or 1:100) to optimize signal intensity and reduce potential cone fouling from the nitric acid matrix.
3. How does the certification traceability work for this product?
Each batch is calibrated against NIST SRM 3121 (Platinum Standard Solution) using gravimetric preparation methods, with independent verification via ICP-OES cross-checking to ensure metrological traceability.
4. What is the recommended storage temperature range?
Store between 15–25°C in the original tightly sealed container, protected from direct sunlight. Avoid freezing, as this may alter the nitric acid concentration and potentially precipitate platinum at ultra-low temperatures.
5. Are there any known spectral interferences when using this standard?
Primary spectral overlaps may occur with hafnium (Hf 265.875 nm) and mercury (Hg 265.204 nm) lines in AAS. For ICP-MS, polyatomic interferences from ¹⁹⁵Pt with ¹⁷⁹Hf¹⁶O⁺ or ¹⁸⁰Hf¹⁵N⁺ can be resolved using collision/reaction cell technology with helium or hydrogen gas.
