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Vitamin D Standardization Program (VDSP) intralaboratory study for the assessment of 25-hydroxyvitamin D assay variability and bias

The Journal of steroid biochemistry and molecular biology, 2021-09, Vol.212, p.105917-105917, Article 105917

2021

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Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program (VDSP) Intercomparison Study 2 — Part 2 ligand binding assays — impact of 25-hydroxyvitamin D2 and 24R,25-dihydroxyvitamin D3 on assay performance

Analytical and bioanalytical chemistry, 2022-01, Vol.414 (1), p.351-366

2022

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Solid phase extraction of proteins from buffer solutions employing capillary-channeled polymer (C-CP) fibers as the stationary phase

Analyst (London), 2013-01, Vol.138 (4), p.198-116

2013

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Role of the National Institute of Standards and Technology (NIST) in Support of the Vitamin D Initiative of the National Institutes of Health, Office of Dietary Supplements

Journal of AOAC International, 2017-09, Vol.100 (5), p.1260-1276

2017

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Technical Note: Determination of Cholecalciferol (Vitamin D₃) in Standard Reference Material 3532 Calcium-Containing Solid Oral Dosage Form

Journal of AOAC International, 2017-09, Vol.100 (5), p.1304-1307

Burdette, Carolyn Q

2017

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Determination of 24,25-dihydroxyvitamin D 3 in Vitamin D External Quality Assessment Scheme samples using a reference measurement procedure

The Journal of steroid biochemistry and molecular biology, 2023-07, Vol.231, p.106318

2023

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Determination of 24,25-dihydroxyvitamin D3 in Vitamin D External Quality Assessment Scheme samples using a reference measurement procedure

The Journal of steroid biochemistry and molecular biology, 2023-07, Vol.231, p.106318, Article 106318

2023

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Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program (VDSP) Intercomparison Study 2 — Part 1 liquid chromatography – tandem mass spectrometry (LC-MS/MS) assays — impact of 3-epi-25-hydroxyvitamin D3 on assay performance

Analytical and bioanalytical chemistry, 2022, Vol.414 (1), p.333-349

2022

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Establishing an Accuracy Basis for the Vitamin D External Quality Assessment Scheme (DEQAS)

Journal of AOAC International, 2017-09, Vol.100 (5), p.1277-1287

2017

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Ambient desorption/ionization mass spectrometry using a liquid sampling–atmospheric glow discharge (LS-APGD) ionization source

Analytical and bioanalytical chemistry, 2013-10, Vol.405 (25), p.8171-8184

2013

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Assessment of serum total 25-hydroxyvitamin D assay commutability of Standard Reference Materials and College of American Pathologists Accuracy-Based Vitamin D (ABVD) Scheme and Vitamin D External Quality Assessment Scheme (DEQAS) materials: Vitamin D Standardization Program (VDSP) Commutability Study 2

Analytical and bioanalytical chemistry, 2021-08, Vol.413 (20), p.5067-5084

2021

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In-Line Desalting of Proteins from Buffer and Synthetic Urine Solution Prior to ESI-MS Analysis via a Capillary-Channeled Polymer Fiber Microcolumn

Journal of the American Society for Mass Spectrometry, 2013-06, Vol.24 (6), p.975-978

2013

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Assessment of serum total 25-hydroxyvitamin D assays for Vitamin D External Quality Assessment Scheme (DEQAS) materials distributed at ambient and frozen conditions

Analytical and bioanalytical chemistry, 2022, Vol.414 (2), p.1015-1028

2022

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Development of a kelp powder (Thallus laminariae) Standard Reference Material

Analytical and bioanalytical chemistry, 2018-02, Vol.410 (4), p.1265-1278

2018

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Development of a pregnancy-specific reference material for thyroid biomarkers, vitamin D, and nutritional trace elements in serum

Clinical chemistry and laboratory medicine, 2021-03, Vol.59 (4), p.671-679

2021

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Determination of isoflavone content in soy, red clover, and kudzu dietary supplement materials by liquid chromatography-particle beam/electron ionization mass spectrometry

Journal of AOAC International, 2013-09, Vol.96 (5), p.925-932

2013

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Liquid chromatography with absorbance detection and with isotope-dilution mass spectrometry for determination of isoflavones in soy standard reference materials

Analytical and bioanalytical chemistry, 2017-02, Vol.409 (4), p.949-960

2017

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Interlaboratory Comparison for the Determination of 24,25-Dihydroxyvitamin D₃ in Human Serum Using Liquid Chromatography with Tandem Mass Spectrometry

Journal of AOAC International, 2017-09, Vol.100 (5), p.1308-1317

2017

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Determination of Isoflavone Content in SRM 3238 Using Liquid Chromatography-Particle Beam/Electron Ionization Mass Spectrometry

Journal of AOAC International, 2015-11, Vol.98 (6), p.1483-1490

2015

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Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program assays - impact of 3-epi-25-hydroxyvitamin D.sub.3 on assay performance

Analytical and bioanalytical chemistry, 2022-01, Vol.414 (1), p.333

2022

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Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program Intercomparison Study 2 - Part 2 ligand binding assays - impact of 25-hydroxyvitamin D.sub.2 and 24R,25-dihydroxyvitamin D.sub.3 on assay performance

Analytical and bioanalytical chemistry, 2022-01, Vol.414 (1), p.351

2022

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Assessment of serum total 25-hydroxyvitamin D assay commutability of Standard Reference Materials and College of American Pathologists Accuracy-Based Vitamin D Commutability Study 2

Analytical and bioanalytical chemistry, 2021-08, Vol.413 (20), p.5067

2021

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Determination of 24,25-Dihydroxyvitamin D3 [24,25(OH)2D3] in Archived Vitamin D External Quality Assessment Scheme (DEQAS) Samples using a Reference Measurement Procedure with Comparison to DEQAS Participant Results and Assessment of Contribution of 24,25(OH)2D3 to DEQAS Assay Results

The Journal of steroid biochemistry and molecular biology, 2023-05, Vol.231, p.106318-106318

2023

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Roles of electrode material and geometry in liquid sampling-atmospheric pressure glow discharge (LS-APGD) microplasma emission spectroscopy

Microchemical journal, 2012-11, Vol.105, p.48-55

2012

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Vitamin D Standardization Program (VDSP) intralaboratory study for the assessment of 25-hydroxyvitamin D assay variability and bias

Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program (VDSP) Intercomparison Study 2 — Part 2 ligand binding assays — impact of 25-hydroxyvitamin D2 and 24R,25-dihydroxyvitamin D3 on assay performance

Solid phase extraction of proteins from buffer solutions employing capillary-channeled polymer (C-CP) fibers as the stationary phase

Role of the National Institute of Standards and Technology (NIST) in Support of the Vitamin D Initiative of the National Institutes of Health, Office of Dietary Supplements

Technical Note: Determination of Cholecalciferol (Vitamin D₃) in Standard Reference Material 3532 Calcium-Containing Solid Oral Dosage Form

Determination of 24,25-dihydroxyvitamin D 3 in Vitamin D External Quality Assessment Scheme samples using a reference measurement procedure

Determination of 24,25-dihydroxyvitamin D3 in Vitamin D External Quality Assessment Scheme samples using a reference measurement procedure

Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program (VDSP) Intercomparison Study 2 — Part 1 liquid chromatography – tandem mass spectrometry (LC-MS/MS) assays — impact of 3-epi-25-hydroxyvitamin D3 on assay performance

Establishing an Accuracy Basis for the Vitamin D External Quality Assessment Scheme (DEQAS)

Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program (VDSP) Intercomparison Study 2 - Part 1 liquid chromatography - tandem mass spectrometry (LC-MS/MS) assays - impact of 3-epi-25-hydroxyvitamin D 3 on assay performance

Ambient desorption/ionization mass spectrometry using a liquid sampling–atmospheric glow discharge (LS-APGD) ionization source

In-Line Desalting of Proteins from Buffer and Synthetic Urine Solution Prior to ESI-MS Analysis via a Capillary-Channeled Polymer Fiber Microcolumn

Assessment of serum total 25-hydroxyvitamin D assays for Vitamin D External Quality Assessment Scheme (DEQAS) materials distributed at ambient and frozen conditions

Development of a kelp powder (Thallus laminariae) Standard Reference Material

Development of a pregnancy-specific reference material for thyroid biomarkers, vitamin D, and nutritional trace elements in serum

Determination of isoflavone content in soy, red clover, and kudzu dietary supplement materials by liquid chromatography-particle beam/electron ionization mass spectrometry

Liquid chromatography with absorbance detection and with isotope-dilution mass spectrometry for determination of isoflavones in soy standard reference materials

Interlaboratory Comparison for the Determination of 24,25-Dihydroxyvitamin D₃ in Human Serum Using Liquid Chromatography with Tandem Mass Spectrometry

Determination of Isoflavone Content in SRM 3238 Using Liquid Chromatography-Particle Beam/Electron Ionization Mass Spectrometry

Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program assays - impact of 3-epi-25-hydroxyvitamin D.sub.3 on assay performance

Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program Intercomparison Study 2 - Part 2 ligand binding assays - impact of 25-hydroxyvitamin D.sub.2 and 24R,25-dihydroxyvitamin D.sub.3 on assay performance

Assessment of serum total 25-hydroxyvitamin D assay commutability of Standard Reference Materials and College of American Pathologists Accuracy-Based Vitamin D Commutability Study 2

Determination of 24,25-Dihydroxyvitamin D3 [24,25(OH)2D3] in Archived Vitamin D External Quality Assessment Scheme (DEQAS) Samples using a Reference Measurement Procedure with Comparison to DEQAS Participant Results and Assessment of Contribution of 24,25(OH)2D3 to DEQAS Assay Results

Roles of electrode material and geometry in liquid sampling-atmospheric pressure glow discharge (LS-APGD) microplasma emission spectroscopy

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