Sigma-Aldrich Ammonium Standard Solution

Agency

traceable to NIST

Quality Level

200

Specific Analyte(S)

ammonium

Concentration

2.00 mg/L (NH₄-N in H₂O)

Technique(S)

photometry: suitable

Format

single component solution

Storage Temp.

15-25°C

Related Categories

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Photometric Analysis with Spectroquant® Instruments & Test Kits

Application

Ammonium Standard Solution can be used to check the photometric measurement system (reagents, measurement device, handling) and the mode of working.This Spectroquant^®Ammonium Standard Solution is a high-quality laboratory solution used forinternal quality control and method controlling purposes.

These Spectroquant^®standard solutionsperfectly complement our ready-to-use test kits and photometers within theSpectroquant^®portfolio and are ideal for validatinginternational norm methods described in e.g., ISO, EN, APHA, and EPA.

Please visit the Reference Material Quality Grade websiteto find a comprehensive overview of our different grades of standards.

Features And Benefits

• Manufactured and tested in DIN EN ISO 9001:2008 accredited laboratory
• The solution is pre-diluted to a concentration that falls into the range of our Spectroquant^®test kits. This eliminates the need for dilution prior to analysis and hence avoids a common source of error
• Ready-to-use diluted reference materials (RMs) along with expanded measurement uncertainty ensure absolute precision
• Accompanied with a certificate of analysis (COA) detailing the certified values, including uncertainty and expiry date
• Directly traceable to standard reference materials (SRM) from the National Institute of Standards and Technology (NIST) or to United States Pharmacopeia (USP)
• Reliable and reproducible results

Analysis Note

Concentration: 2.00 ± 0.07 mg/L NH₄-N in H₂OSPECTROQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany