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quantaphase ii procedure  (Bio-Rad)


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    Bio-Rad quantaphase ii procedure
    Quantaphase Ii Procedure, supplied by Bio-Rad, 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/quantaphase+ii+procedure/quantaphase+ii+procedure/pmc06329535-90-8-12
    Average 90 stars, based on 1 article reviews
    quantaphase ii procedure - by Bioz Stars, 2026-09
    90/100 stars

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    Microbial Assay:

    Article Title: Biomarkers of folate status in NHANES: a roundtable summary
    Article Snippet: .. The roundtable reviewed data that showed that folate concentrations from the Bio-Rad Quantaphase II procedure (Bio-Rad Laboratories, Hercules, CA; used in NHANES 1991–1994 and NHANES 1999–2006) were, on average, 29% lower for serum and 45% lower for RBC than were those from the microbiological assay (MA), which was used in NHANES 2007–2010. ..

    Produced:

    Article Title: Overview of a roundtable on NHANES monitoring of biomarkers of folate and vitamin B-12 status: measurement procedure issues
    Article Snippet: MAs are the gold standard because they measure all biologically active forms of folate equally but do not measure degradation products that lack biological activity.. .. The Bio-Rad Quantaphase II procedure (Bio-Rad Laboratories, Hercules, CA) that NHANES 1991–1994 and NHANES 1999–2006 used produced serum and RBC folate results that were, on average, 29% lower for serum and 45% lower for RBC than the MA that NHANES 2007–2010 used. These differences will require adjustment equations to evaluate time trends.. ..



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    Fortification and recovery results for the Bio-Rad  Quantaphase  II measurement procedure and the microbiological assay <xref ref-type= 1 " width="100%" height="100%">

    Journal: The American Journal of Clinical Nutrition

    Article Title: Biomarkers of folate status in NHANES: a roundtable summary 1 2 3 4 5 6

    doi: 10.3945/ajcn.111.013011

    Figure Lengend Snippet: Fortification and recovery results for the Bio-Rad Quantaphase II measurement procedure and the microbiological assay 1

    Article Snippet: NHANES began the measurement of folate biomarkers in 1974–1975 with the use of an MA ( ); however, the roundtable focused primarily on NHANES measures after the 1991 introduction of the Bio-Rad Quantaphase II competitive protein-binding measurement procedure (Bio-Rad Laboratories, Hercules, CA).

    Techniques: Microbial Assay