I have 28 years of experience in the field of analytical optical spectroscopy, with specific knowledge of atomic absorption spectroscopy, atomic emission spectroscopy, and molecular luminescence spectroscopy. I have published on such topics as atomic absorption, inductively coupled plasma atomic emission and metal ion bio absorption. I have testified on atomic absorption spectroscopy and chemcial analysis. I have authored, or co-authored, 65 papers in peer-reviewed professional journals.