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1.19811

Supelco

Nitrate standard solution

traceable to SRM from NIST NaNO₃ in H₂O 1000 mg/l NO₃ Certipur®

Synonym(s):
Nitrate standard for aqueous matrices ready for use

Quality Level

application(s)

ion chromatography: suitable

pH

6 (20 °C in H2O)

density

1.00 g/cm3 at 20 °C

Featured Industry

Environmental
Food and Beverages

format

single component solution

storage temp.

15-25°C

Analysis Note

Concentration     β (NO₃⁻): 990 - 1010 mg/l
Determination method:   Alkalimetric titration.
The content of this solution was determined with sodium hydroxid standard solution 0.1 mol/l .The sodium hydroxide standard solution 0.1 mol/l is adjusted by hydrochloric acid standard solution 0.1 mol/L.The hydrochloric acid standard solution is standardized and traceable to volumetric standard tris(hydroxymethyl)aminomethane (article number 1.02408). The expanded measurement uncertainty is ± 1 % (k=2 coverage factor for 95% coverage probability). The certified value is traceable to primary standard NIST SRM 723 (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard tris(hydroxymethyl)aminomethane, measured in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany in accordance to DIN EN ISO/IEC 17025.

Legal Information

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

10 - Combustible liquids

WGK

nwg

Certificate of Analysis

Certificate of Origin

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