If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
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For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf
NIST1950
Metabolites in human plasma
NIST® SRM® 1950
Sinónimos:
Human Plasma Metabolites
About This Item
Productos recomendados
grado
certified reference material
Nivel de calidad
Formulario
liquid
envase
pkg of 5 x 1 mL
fabricante / nombre comercial
NIST®
técnicas
gas chromatography (GC): suitable
liquid chromatography (LC): suitable
mass spectrometry (MS): suitable
aplicaciones
clinical research
Formato
matrix material
Categorías relacionadas
Descripción general
It was developed in a collaboration between the National Institute of Standards and Technology (NIST) and the National Institutes of Health (NIH) National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Analyses for value assignment were performed by NIST and the Centers for Disease Control and Prevention (CDC) (Atlanta, GA). All certified and reference values, with the exception of vitamin D-binding protein, are based on the agreement between the results from NIST methods and from the CDC, where available. The reference value for vitamin D-binding protein is based on the agreement between the results from a NIST method and the University of Washington method.
SRM 1950 _SDS
SRM 1950_CERT
Aplicación
The standard has been used:
- to determine the accuracy of vitamin D in human serum by liquid chromatography-tandem mass spectrometry (LC-MS/MS)[1]
- to determine the unbound free fatty acid profile of human plasma[2]
- to determine the C24 bile acids in human serum and urine samples by liquid chromatography-mass spectrometry (LC-MS) method[3]
Características y beneficios
- A unit of SRM 1950 consists of five vials, each containing approximately 1.0 mL of plasma
- The associated uncertainties are expressed at the 95 %level of confidence
- Information on product description, disposal, and transportation is available in the accompanying MSDS
- The enclosed NIST certificate contains details on the expiry date, warning to users, instructions for right storage and use, preparation, and analysis of the RM
Información legal
Producto relacionado
Código de clase de almacenamiento
13 - Non Combustible Solids
Clase de riesgo para el agua (WGK)
WGK 3
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Certificados de análisis (COA)
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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What are the compounds and their level present in the NIST1950 (Metabolites in human plasma)
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The composition information for this product can be found on NIST certification. Please review the certificate of analysis for this standard: https://www-s.nist.gov/srmors/certificates/1950.pdf.
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