等级
certified reference material
描述
NIST® SRM® 921b
表单
crystals
包装
pkg of 25 g
制造商/商品名称
NIST®
技术
Karl-Fischer titration: suitable
NMR: suitable
ion chromatography: suitable
liquid chromatography (LC): suitable
应用
clinical testing
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一般描述
Each unit of SRM 912b contains 25 grams of high-purity crystalline urea. 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
应用
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.
其他说明
- The NIST-certified mass fraction value for urea was determined using a mass balance approach for purity assessment, and the values are metrologically traceable to the SI derived unit for mass fraction, expressed as a percentage.
- Maintenance and expiration of SRM certification, instructions for handling, storage, and use are provided on NIST certificate.
法律信息
NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology
法规信息
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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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