Determination of Synephrine in Bitter Orange Raw Materials, Extracts, and Dietary Supplements by Liquid Chromatography with Ultraviolet Detection: Single-Laboratory Validation

بواسطة Roman, Mark C., Betz, Joseph M., Hildreth, Jana
منشور في 2007

Culinary Spice Plants in Dietary Supplement Products and Tested in Clinical Trials(1)(2)(3)

بواسطة Saldanha, Leila G, Dwyer, Johanna T, Betz, Joseph M
الحاوية / القاعدة Adv Nutr (2016)

Accuracy, Precision, and Reliability of Chemical Measurements in Natural Products Research

بواسطة Betz, Joseph M., Brown, Paula N., Roman, Mark C.
منشور في 2010

The Importance of Method Selection in Determining Product Integrity for Nutrition Research(1)(2)(3)(4)

بواسطة Mudge, Elizabeth M, Betz, Joseph M, Brown, Paula N
الحاوية / القاعدة Adv Nutr (2016)

Toward FAIRness and a User-Friendly Repository for Supporting NMR Data

بواسطة Betz, Joseph M., Hopp, D. Craig, Sorkin, Barbara C.
الحاوية / القاعدة Org Lett (2020)

Determination of Major Phenolic Compounds in Echinacea spp. Raw Materials and Finished Products by High-Performance Liquid Chromatography with Ultraviolet Detection: Single-Laborat...

بواسطة Brown, Paula N., Chan, Michael, Paley, Lori, Betz, Joseph M.
منشور في 2011

Pro-toxic dehydropyrrolizidine alkaloids in the traditional Andean herbal medicine “asmachilca”

بواسطة Colegate, Steven M., Boppré, Michael, Monzón, Julio, Betz, Joseph M.
الحاوية / القاعدة J Ethnopharmacol (2015)

The Challenge of Reproducibility and Accuracy in Nutrition Research: Resources and Pitfalls(1)(2)(3)(4)

بواسطة Sorkin, Barbara C, Kuszak, Adam J, Williamson, John S, Hopp, D Craig, Betz, Joseph M
الحاوية / القاعدة Adv Nutr (2016)

Dehydropyrrolizidine Alkaloids, Including Monoesters with an Unusual Esterifying Acid, from Cultivated Crotalaria juncea (Sunn Hemp cv.’Tropic Sun’)

بواسطة Colegate, Steven M., Gardner, Dale R., Joy, Robert J., Betz, Joseph M., Panter, Kip E.
منشور في 2012

Profiling of Dehydropyrrolizidine Alkaloids and their N-Oxides in Herbarium-Preserved Specimens of Amsinckia Species Using HPLC-esi(+)MS

بواسطة Colegate, Steven M., Welsh, Stanley L., Gardner, Dale R., Betz, Joseph M., Panter, Kip E.
منشور في 2014

Interlaboratory Analytical Comparison of Fatty Acid Concentrations in Serum or Plasma

بواسطة Schantz, Michele M., Powers, Carissa D., Schleicher, Rosemary L., Betz, Joseph M., Wise, Stephen A.
الحاوية / القاعدة Clin Chim Acta (2016)

Determination of Aflatoxins B(1), B(2), G(1), and G(2) and Ochratoxin A in Ginseng and Ginger by Multitoxin Immunoaffinity Column Cleanup and Liquid Chromatographic Quantitation: C...

بواسطة Trucksess, Mary W., Weaver, Carol M., Oles, Carolyn J., Fry, Frederick S., Noonan, Gregory O., Betz, Joseph M., Rader, Jeanne I.
منشور في 2008

Dietary Supplement Use in the United States, 2003–2006(1)

بواسطة Bailey, Regan L., Gahche, Jaime J., Lentino, Cindy V., Dwyer, Johanna T., Engel, Jody S., Thomas, Paul R., Betz, Joseph M., Sempos, Christopher T., Picciano, Mary Frances
منشور في 2011

Dietary Supplement Laboratory Quality Assurance Program: The First Five Exercises

بواسطة Phillips, Melissa M., Rimmer, Catherine A., Wood, Laura J., Lippa, Katrice A., Sharpless, Katherine E., Duewer, David L., Sander, Lane C., Betz, Joseph M.
منشور في 2011

Unmetabolized serum folic acid and its relation to folic acid intake from diet and supplements in a nationally representative sample of adults aged ≥60 y in the United States(1)(2)...

بواسطة Bailey, Regan L, Mills, James L, Yetley, Elizabeth A, Gahche, Jaime J, Pfeiffer, Christine M, Dwyer, Johanna T, Dodd, Kevin W, Sempos, Christopher T, Betz, Joseph M, Picciano, Mary Frances
منشور في 2010

Serum unmetabolized folic acid in a nationally representative sample of adults ≥60 years in the United States, 2001–2002

بواسطة Bailey, Regan L., Mills, James L., Yetley, Elizabeth A., Gahche, Jaime J., Pfeiffer, Christine M., Dwyer, Johanna T., Dodd, Kevin W., Sempos, Christopher T., Betz, Joseph M., Picciano, Mary Frances
منشور في 2012

Challenges in Developing Analytically Validated Laboratory-Derived Dietary Supplement Databases

بواسطة Betz, Joseph M, Rimmer, Catherine A, Saldanha, Leila G, Phillips, Melissa M, Andrews, Karen W, Wise, Stephen A, Wood, Laura J, Kuszak, Adam J, Gusev, Pavel A, Pehrsson, Pamela R
الحاوية / القاعدة J Nutr (2018)

Naturally Complex: Perspectives and Challenges Associated with Botanical Dietary Supplement Safety Assessment

بواسطة Shipkowski, Kelly A., Betz, Joseph M., Birnbaum, Linda S., Bucher, John R., Coates, Paul M., Hopp, D. Craig, MacKay, Duffy, Oketch-Rabah, Hellen, Walker, Nigel J., Welch, Cara, Rider, Cynthia V.
الحاوية / القاعدة Food Chem Toxicol (2018)

Conversions of β-Carotene as Vitamin A in IU to Vitamin A in RAE

بواسطة Dwyer, Johanna, Saldanha, Leila, Haggans, Carol, Potischman, Nancy, Gahche, Jaime, Thomas, Paul, Bailen, Richard, Costello, Rebecca, Betz, Joseph M, Andrews, Karen, Gusev, Pavel, Pehrsson, Pamela, Savarala, Sushma, Tey, Phyuongtan, Harnly, James
الحاوية / القاعدة J Nutr (2020)

Analytical ingredient content and variability of adult multivitamin/mineral products: national estimates for the Dietary Supplement Ingredient Database(1)(2)

بواسطة Andrews, Karen W, Roseland, Janet M, Gusev, Pavel A, Palachuvattil, Joel, Dang, Phuong T, Savarala, Sushma, Han, Fei, Pehrsson, Pamela R, Douglass, Larry W, Dwyer, Johanna T, Betz, Joseph M, Saldanha, Leila G, Bailey, Regan L
الحاوية / القاعدة Am J Clin Nutr (2017)