Description
Specifications Table
Product Name – Cobalt, 10000 ppm ICP-ML, single-element standard
Quantity/Pack Size – 100 ml
Form – Liquid
Grade – ICP-ML (Inductively Coupled Plasma – Mass Spectrometry)
Application – Elemental analysis, calibration, quality control
Product Overview
This Cobalt single-element standard (10000 ppm) is formulated with ultra-high purity reagents to ensure consistent performance in ICP-MS and ICP-OES applications. The solution is prepared in a high-purity acid matrix (typically 2-5% HNO₃) to maintain long-term stability and minimize matrix interferences. Each batch undergoes rigorous multi-point calibration against NIST-traceable reference materials, guaranteeing accuracy within ±0.5% of the certified concentration. The low particulate content (<0.2 µm filtered) prevents nebulizer clogging in sensitive instrumentation. Packaged in HDPE bottles with tamper-evident seals, the standard remains stable for 24+ months when stored at 15-25°C. The cobalt concentration is verified via primary standardization methods, while the acid matrix is optimized for compatibility with most sample preparation protocols. This standard eliminates the need for in-house dilution calculations, as the 10000 ppm concentration provides an ideal starting point for creating working standards across a wide analytical range.
FAQs
1. What is the shelf life of this cobalt standard when unopened?
The unopened standard maintains its certified concentration for 24 months from the date of manufacture when stored at 15-25°C in its original packaging.
2. Can this standard be used with both ICP-MS and ICP-OES instruments?
Yes, the 10000 ppm concentration and acid matrix are compatible with both ICP-MS and ICP-OES systems, though you may need to prepare working dilutions appropriate for your specific instrument’s linear range.
3. What is the typical acid matrix composition for this standard?
The standard is prepared in 2-5% high-purity nitric acid, which provides stability while being compatible with most sample digestion protocols.
4. How should I handle potential contamination when using this standard?
Use dedicated Class A volumetric pipettes and polypropylene labware that have been acid-washed (10% HNO₃) and rinsed with deionized water to prevent cross-contamination.
5. What documentation is provided with each bottle?
Each unit includes a certificate of analysis with lot-specific data, including the certified concentration, uncertainty values, expiration date, and storage conditions.
