Description
Specifications Table
Product Name – Antimony, 1000 ppm ICP-ML, single-element standard
Quantity/Pack Size – 100 ml
Form – Liquid (aqueous solution in dilute HNO₃)
Grade – ICP-ML (Inductively Coupled Plasma – Mass Spectrometry)
Application – Elemental analysis, calibration standards, trace metal testing
Product Overview
This Antimony 1000 ppm ICP-ML single-element standard delivers exceptional purity and stability for demanding analytical applications. Formulated in a dilute nitric acid matrix (2-5% HNO₃), it ensures minimal matrix interference while maintaining long-term stability when stored properly. The standard is manufactured under ISO 17034 and ISO/IEC 17025 accredited processes, providing NIST-traceable certification for reliable calibration curves in ICP-OES and ICP-MS systems. Each batch undergoes rigorous multi-point quality control testing to verify concentration accuracy within ±1% tolerance. The solution comes in a high-density polyethylene (HDPE) bottle with tamper-evident seal, preventing contamination during storage or transport. Its low-particle formulation (<0.2 µm filtered) makes it particularly suitable for sensitive instrumentation where particulate contamination could compromise results. The standard's shelf life extends to 24 months from date of manufacture when stored at 15-25°C, with the original container tightly sealed and protected from light exposure.
FAQs
1. What matrix is used for this Antimony standard solution?
The standard is prepared in a 2-5% nitric acid (HNO₃) matrix, which provides optimal stability for Antimony while being compatible with most ICP systems. The dilute acid concentration helps prevent precipitation while minimizing matrix effects during analysis.
2. How should I verify the concentration before use?
While the standard comes with a certificate of analysis, you can perform an independent verification by preparing a 1:10 dilution and analyzing against a secondary reference material. For critical applications, we recommend running a minimum of three replicate measurements to confirm concentration consistency.
3. What alternatives exist for lower concentration requirements?
For applications requiring lower concentrations, you can prepare working standards by serial dilution using the same matrix (2-5% HNO₃). We recommend using Class A volumetric glassware and preparing fresh dilutions daily to maintain accuracy, especially for concentrations below 10 ppb.
4. Can this standard be used with graphite furnace AAS?
While primarily designed for ICP applications, this standard can be adapted for graphite furnace AAS with proper matrix modification. You may need to add a matrix modifier like palladium or magnesium nitrate to prevent Antimony loss during the charring step, as Antimony is volatile at higher temperatures.
5. What’s the recommended storage protocol for long-term stability?
Store the unopened bottle at 15-25°C in its original packaging, away from direct sunlight and heat sources. Once opened, purge the bottle with argon gas before resealing and store at 4°C to minimize oxidation. Always use clean, dedicated pipettes to prevent cross-contamination during aliquoting.
