Description
Specifications Table
Product Name – Potassium, 1000 ppm ICP-ML, single-element standard
Quantity/Pack Size – 100 ml
Form – Liquid
Grade – ICP-ML
Application – ICP-OES, AAS, elemental analysis
Product Overview
This Potassium 1000 ppm ICP-ML single-element standard delivers exceptional purity and stability for demanding analytical applications. Formulated using high-grade potassium salts dissolved in ultra-pure acid matrix, this standard ensures minimal matrix interference and maximum instrument compatibility. The 1000 ppm concentration provides optimal sensitivity for ICP-OES and AAS calibration curves while maintaining long-term stability when stored properly. Each batch undergoes rigorous quality control with NIST-traceable certification to guarantee accuracy within ±1% of stated concentration. The liquid form eliminates weighing errors and dissolution steps, saving valuable lab time. Packaged in HDPE bottles with tamper-evident seals, the solution remains contamination-free throughout its shelf life. The low particulate content (<0.2 µm filtered) prevents nebulizer clogging in ICP systems, while the acid matrix composition ensures complete ionization. This standard meets ISO 17025 and GLP requirements, making it suitable for regulated laboratories. The 100 ml pack size offers sufficient volume for routine calibration while minimizing waste from repeated bottle openings.
FAQs
1. What is the shelf life of this Potassium ICP standard when unopened?
The unopened standard maintains its certified concentration for 24 months from the date of manufacture when stored at controlled room temperature (15-25°C). Always check the expiration date on the label before use.
2. Can this standard be used for both ICP-OES and AAS applications?
Yes, the 1000 ppm concentration is optimized for both ICP-OES and flame AAS applications. For graphite furnace AAS, you may need to prepare working dilutions as the matrix contains mineral acids.
3. What diluent should be used for preparing working standards?
Use 2% nitric acid (prepared from trace metal grade HNO₃) as the diluent for preparing working standards. This matches the acid matrix of the original standard and maintains solution stability.
4. How does this compare to multi-element potassium standards?
Single-element standards like this offer higher accuracy for potassium-specific analysis as they eliminate potential inter-element spectral interferences that can occur in multi-element standards during ICP measurements.
5. What safety precautions should be taken when handling this standard?
Always wear appropriate PPE including nitrile gloves, safety goggles, and lab coat. Work in a fume hood as the solution contains mineral acids. In case of skin contact, rinse immediately with plenty of water and seek medical advice.
