Accurate Analysis of Chromium in Foodstuffs by Using Inductively Coupled Plasma Mass Spectrometry with a Collision-Reaction Interface

Department of Food and Nutrition, College of Health Sciences, Korea University, Seoul 136-703, KoreaReceived January 2, 2013, Accepted March 13, 2013Food is a common source of chromium (Cr) exposure. However, it is difficult to analyze Cr in complex foodmatrices by using inductively coupled plasma mass spectrometry (ICP-MS) because the major isotope