grade
certified reference material
description
NIST® SRM® 921b
form
crystals
packaging
pkg of 25 g
manufacturer/tradename
NIST® SRM 912b
technique(s)
Karl-Fischer titration: suitable
NMR: suitable
ion chromatography: suitable
liquid chromatography (LC): suitable
application(s)
clinical testing
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General description
Urea Standard Reference Material (SRM) is certified as a neat chemical of known purity. It is a primary standard intended for use during calibration procedures and method validations implemented by clinical laboratories. A unit of SRM 912b consists of 25 g of high-purity crystalline urea.
SRM 912B_cert
SRM 912B_SDS
SRM 912B_cert
SRM 912B_SDS
Application
NIST Urea is intended for use as a primary calibrant for the measurement procedures and validating methods used in clinical pathology laboratories to determine urea blood nitrogen.
Other Notes
- Expiration details and storage and use instructions are provided on the NIST certificate
- Notes on biomaterial handling, disposal, and transport documented in MSDS
Legal Information
NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology
Regulatory Information
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Annie Ren et al.
Clinica chimica acta; international journal of clinical chemistry, 542, 117276-117276 (2023-03-05)
We evaluated analytical and Sigma performance for 6 next generation chemistry assays on the Abbott Architect c8000 system. Albumin with bromocresol purple or green, amylase, cholesterol, total protein, and urea nitrogen were analyzed using photometric technology. Analytical performance goals were
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