Wm Craig ByrdwellResearch Chemist with the United States Department of Agriculture, ARS.Currently Dr. Byrdwell is working on analysis of vitamin D and other fat soluble vitamins and triacylglycerols using triple- and quadruple- parallel mass spectrometry approaches, ombining the best aspects of three or four mass spectrometers employing complementary ionization methods in LCx/MSy techniques. Read More Read Less