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Joseph Zhou, PhD., Director of Laboratory Methods
Joseph Zhou, Director of Laboratory Methods, NOW Foods

 

"Our job is methods development. Quality control relies on good methods. Good methods promote good products."

 

PROFESSIONAL EXPERIENCE

  • Director of Laboratory Methods, NOW Foods;
  • Committee Member of New Products Development (NPD), and Committee Member of Innovative Products Development (IPD);
  • AOAC Study Director for the Glucosamine Method Collaborative Study, and Study Coordinator for the Glucosamine Method Single Laboratory Validation; and
  • Additional 4 + years R&D Technical Management Experience at Nature’s Sunshine Products, Inc.

    REPRESENTATIVE PUBLICATIONS

  • J. Zhou, T. Waszkuc, and F. Mohammed and Other 12 International Collaborators: Determination of Glucosamine in Raw materials and Dietary Supplements Containing Glucosamine Sulfate and/or Glucosamine Hydrochloride by HPLC with FMOC-Su Derivatization: Collaborative Study
  • J. Zhou, T. Waszkuc, and F. Mohammed: Single Laboratory Validation of a Method for Determination of Glucosamine in Raw materials and Dietary Supplements Containing Glucosamine Sulfate and/or Glucosamine Hydrochloride by High Performance Liquid Chromatography with FMOC-Su Derivatization,. Journal of AOAC International, 87 (5), 2004, 1083-1092.
  • J. Zhou, H. Li, T. Waszkuc, and U. Abbott: Inaccurate analytical results, Nutritional Outlook, May 2002, 18-19.
  • J. Zhou, T. Waszkuc, S. Garbis, and F. Mohammed : Liquid chromatographic determination of S-Adenosyl-L-Methionine in dietary supplement tablets, Journal of AOAC International, 85 (4), 2002, 901-905.
  • J. Zhou, X. Kou and D. Stevenson: Rapid extraction and high performance liquid chromatographic determination of parthenolide in feverfew. Journal of Agricultural and Food Chemistry, 47(3). 1999, 1018-1022.

    MEMBERSHIP

    American Chemical Society (ACS)
    AOAC International (AOAC)
    Association of American Pharmaceutical Scientists (AAPS)

    EDUCATION

    Postdoctoral Training - Pharmaceutics, Univ. of Michigan (Ann Arbor), 1994
    Ph.D. - Physical and Analytical Chemistry, Univ. of Illinois (Chicago), 1993
    M.S. - Physical Chemistry, University of Illinois (Chicago), 1989
    B.S. - Chemical Engineering, East China Institute of Technology, 1982