External Quality Assessment of 24,25-dihydroxyvitamin D3 (24,25(OH)2D3) assays

[1]  H. DeLuca,et al.  Vitamin D assays and the definition of hypovitaminosis D: results from the First International Conference on Controversies in Vitamin D , 2018, British journal of clinical pharmacology.

[2]  C. Sempos,et al.  Hydroxyvitamin D assays: An historical perspective from DEQAS , 2017, The Journal of Steroid Biochemistry and Molecular Biology.

[3]  Joseph M Betz,et al.  Establishing an Accuracy Basis for the Vitamin D External Quality Assessment Scheme (DEQAS). , 2017, Journal of AOAC International.

[4]  Johanna E. Camara,et al.  Interlaboratory Comparison for the Determination of 24,25-Dihydroxyvitamin D₃ in Human Serum Using Liquid Chromatography with Tandem Mass Spectrometry. , 2017, Journal of AOAC International.

[5]  C. Sempos,et al.  Development of Standard Reference Material (SRM) 2973 Vitamin D Metabolites in Frozen Human Serum (High Level). , 2017, Journal of AOAC International.

[6]  C. Sempos,et al.  25-Hydroxyvitamin D assays: Potential interference from other circulating vitamin D metabolites , 2016, The Journal of Steroid Biochemistry and Molecular Biology.

[7]  Martin Kaufmann,et al.  Vitamin D metabolite profiling using liquid chromatography–tandem mass spectrometry (LC–MS/MS) , 2016, The Journal of Steroid Biochemistry and Molecular Biology.

[8]  Glenville Jones,et al.  A High-Calcium and Phosphate Rescue Diet and VDR-Expressing Transgenes Normalize Serum Vitamin D Metabolite Profiles and Renal Cyp27b1 and Cyp24a1 Expression in VDR Null Mice. , 2015, Endocrinology.

[9]  M. Nelson,et al.  Candidate Reference Measurement Procedure for the Determination of (24R),25-Dihydroxyvitamin D3 in Human Serum Using Isotope-Dilution Liquid Chromatography-Tandem Mass Spectrometry. , 2015, Analytical chemistry.

[10]  C. Sempos,et al.  Significance of serum 24,25-dihydroxyvitamin D in the assessment of vitamin D status: a double-edged sword? , 2015, Clinical chemistry.

[11]  H. DeLuca,et al.  Clinical utility of simultaneous quantitation of 25-hydroxyvitamin D and 24,25-dihydroxyvitamin D by LC-MS/MS involving derivatization with DMEQ-TAD. , 2014, The Journal of clinical endocrinology and metabolism.

[12]  R. Horst.  Exogenous versus endogenous recovery of 25-hydroxyvitamins D2 and D3 in human samples using high-performance liquid chromatography and the DiaSorin LIAISON Total-D Assay , 2010, The Journal of Steroid Biochemistry and Molecular Biology.

[13]  K. Phinney,et al.  Development of a candidate reference measurement procedure for the determination of 25-hydroxyvitamin D3 and 25-hydroxyvitamin D2 in human serum using isotope-dilution liquid chromatography-tandem mass spectrometry. , 2010, Analytical chemistry.

[14]  G. Carter,et al.  Use of a common standard improves the performance of liquid chromatography-tandem mass spectrometry methods for serum 25-hydroxyvitamin-D , 2009, Annals of clinical biochemistry.

[15]  G. Carter,et al.  The anomalous behaviour of exogenous 25-hydroxyvitamin D in competitive binding assays , 2007, The Journal of Steroid Biochemistry and Molecular Biology.

[16]  H. Schmidt‐Gayk,et al.  Interlaboratory comparison of 25-hydroxyvitamin D determination. , 1984, Clinical chemistry.

[17]  F. V. Van Ginkel,et al.  An international comparison of vitamin D metabolite measurements. , 1984, Clinical chemistry.

[18]  H. DeLuca,et al.  The determination of 24,25-dihydroxyvitamin D and 25,26-dihydroxyvitamin D in plasma from normal and nephrectomized man. , 1979, The Journal of laboratory and clinical medicine.