Description
Specifications Table
Product Name – Ammonium, Ion chromatography standard solution, Specpure®, NH{4}|+ 1000μg/ml
Quantity/Pack Size – 100ml
Form – Liquid (Aqueous Solution)
Grade – Specpure® (Traceable Standard)
Application – Ion Chromatography, Analytical Calibration, Environmental Testing
Product Overview
This Specpure® ammonium ion chromatography standard solution delivers unmatched precision for laboratory applications requiring trace-level ammonium (NH₄⁺) quantification. Formulated at a certified concentration of 1000µg/ml, the solution is prepared using ultra-pure reagents and deionized water to minimize matrix interferences, ensuring reliable calibration curves and method validation. The Specpure® grade guarantees lot-to-lot consistency, with rigorous quality control measures including ICP-MS screening for metallic impurities and gravimetric verification of concentration. Housed in a high-density polyethylene (HDPE) bottle, the solution resists leaching and contamination, preserving integrity during storage. Its stability is validated for 24 months under recommended conditions (2–8°C), though periodic recalibration is advised for critical applications. The aqueous matrix is optimized for direct compatibility with ion chromatography systems, eliminating the need for dilution in most routine analyses. Whether used for environmental water testing, pharmaceutical residue analysis, or industrial process monitoring, this standard provides the accuracy demanded by ISO 17025-accredited labs and research institutions.
FAQs
1. What is the shelf life of this ammonium standard solution when stored properly?
The solution remains stable for 24 months from the date of manufacture when stored at 2–8°C in its original, tightly sealed container. Avoid exposure to direct sunlight or temperature fluctuations.
2. Can this standard be used with anion-exchange columns in ion chromatography?
Yes, the solution is compatible with standard anion-exchange columns (e.g., AS11, AS22) for ammonium analysis. However, ensure the eluent pH and gradient conditions align with your method’s requirements to prevent peak tailing.
3. Are there lower-concentration alternatives available for preparing calibration curves?
Dilution of this 1000µg/ml stock is recommended for creating intermediate standards. Use Class A volumetric glassware and deionized water (18.2 MΩ·cm) to achieve target concentrations while maintaining traceability.
4. How should I handle potential contamination during sample preparation?
Use dedicated, acid-washed labware and wear powder-free nitrile gloves to prevent ammonium contamination from skin or ambient sources. Rinsing tools with 10% HCl followed by deionized water can further reduce background interference.
5. Is this standard suitable for EPA or IS 10500:2012 compliance testing?
The Specpure® grade meets the purity requirements for EPA Method 300.0 (ion chromatography) and aligns with IS 10500:2012 parameters for ammonium in drinking water, provided the lab’s validation protocol accounts for matrix effects.
