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caffeine standard 99.7  (Thermo Fisher)


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    Thermo Fisher caffeine standard 99.7
    Caffeine Standard 99.7, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/caffeine+standard/caffeine+standard+99+7/10__1016_slash_j__scp__2024__101779-65-38-43
    Average 90 stars, based on 1 article reviews
    caffeine standard 99.7 - by Bioz Stars, 2026-09
    90/100 stars

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    Related Articles

    other:

    Article Title: Valorization of Coffee Silverskin Using Extraction Cycles and Water as a Solvent: Design of Process
    Article Snippet: The standard used was the 99.7% caffeine standard from Thermo Scientific.

    Article Title: Comparison of liquid chromatography-isotope ratio mass spectrometry (LC/IRMS) and gas chromatography-combustion-isotope ratio mass spectrometry (GC/C/IRMS) for the determination of collagen amino acid δ13C values for palaeodietary and palaeoecological reconstruction.
    Article Snippet: Results are presented of a comparison of the amino acid (AA) dC values obtained by gas chromatography– combustion–isotope ratio mass spectrometry (GC/C/IRMS) and liquid chromatography–isotope ratio mass spectrometry (LC/IRMS).. Although the primary focus was the compound-specific stable carbon isotope analysis of bone collagen AAs, because of its growing application for palaeodietary and palaeoecological reconstruction, the results are relevant to any field where AA dC values are required.. We compare LC/IRMS with the most up-to-date GC/C/IRMS method using N-acetyl methyl ester (NACME) AA derivatives.

    Mass Spectrometry:

    Article Title: High Diazotrophic Diversity but Low N2 Fixation Activity in the Northern Benguela Upwelling System Confirming the Enigma of Nitrogen Fixation in Oxygen Minimum Zone Waters
    Article Snippet: .. Filters were acidified over fuming HCl overnight, oven-dried, and duplicates were analyzed on an Elemental Analyzer Flash EA 1112 series (Thermo Fisher, USA) coupled to an isotope ratio mass spectrometer (Finnigan Delta Plus XP, Thermo Fisher, USA) against a caffeine standard. ..



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