Study of the Effect of Sample Preparation and Cooking on the Selenium Speciation of Selenized Potatoes by HPLC with ICP-MS and Electrospray Ionization MS/MS - Goenaga Infante, Heidi; Arias Borrego, Ana; Peachey, Emma; Hearn, Ruth; O'Connor, Gavin; Garcia Barrera, Tamara; Ariza, Jose Luis Gomez (JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2009)