Ira Krull is a semi-retired professor emeritus of analytical chemistry, having been on the tenured faculty at Northeastern University, Boston, MA, for almost thirty years until 2008. Throughout his career, he has been involved in analytical methods development and optimization. He has directed and pursued research in areas that require knowledge of analytical chemistry and analytical method validation, including organic photochemistry, natural products isolation, analysis for nitrosamines in foods/drugs, separations science, and mass spectrometry. He has also presented his research around the world, published extensively in journals, scientific magazines, books, editorials, and taught internationally at both the undergraduate and graduate levels. He continues to review scientific papers published in analytically oriented journals and magazines. He has also published numerous columns dealing with Validation Viewpoint in LCGC North America, 1997-2010, together with a colleague, Dr. Michael Swarz. Several review papers by the author have also appeared in analytical chemistry journals and books over the years.