Massachusetts Institute for Technology

Charles P. Casey received his early education in St. Louis, Missouri (B.S. in chemistry, St. Louis University, 1963). His graduate research with George M. Whitesides at the Massachusetts Institute for Technology (MIT) was on organocopper compounds. After receiving his Ph.D. in 1967, he spent several months at Harvard University as a National Science Foundation (NSF) fellow in the laboratories of Paul D. Bartlett. In 1968, he joined the faculty at the University of Wisconsin-Madison where he is now Homer B. Adkins Professor of Chemistry and Steenbock Professor in the Physical Sciences. He was department chair at Wisconsin from 1998 to 2001. He was President of the American Chemical Society (ACS) in 2004. 

Hydroxyphenylazobenzoic acid (HABA) is another general-purpose matrix. Researchers at the Massachusetts Institute for Technology noted that the ion yield decreases rather slowly as the number of laser shots increases (the decrease in ion yield is faster for other matrices). HABA has a low threshold (for instance, it requires at least 20% less energy than 2,5-DHB). This property turned out to be very important when a poly(siloxane) was fractionated by SEC and high mass fractions with... 

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