Chris Cullen Email & Phone Number

Currently applying ISO-10993 and 22442 standard assessments toward regulatory compliance of implant devices and instruments to EU regulations such as MDR, REACH, RoHS, RSL, CLP, 722/2012.Published expert in the application of internal and external standards for absolute quantitation via NMR (qNMR). I am an innovative method developer, problem solver, and optimizer of experimental procedures. I've earned degrees in physics and chemistry as well as twenty-seven years of experience in multinuclear, multidimensional, high-resolution NMR, in liquid, solid and gas-state; characterizing petrochemicals, polymers, catalysts, biologics and other organics and inorganics. I have a strong background in structural elucidation, troubleshooting and reverse-engineering, analysis/interpretation of complex mixtures, analytical method validation and transfer in a GDP/GLP environment and Quality Control. I also have experience with optical (FTIR, UV) spectroscopy, separation, distillation, GC, microscopy, high vacuum, X-ray, and am familiar with HPLC and MS.Special Skillso Skilled in the use of a wide variety of NMR systems including Varian, Bruker, Nicolet, SMIS, Chemagnetics, Elbit/ATI/Foxboro, and PCT low-field “process” NMR.o Proficient in the use of ATR/transmisssion FTIR and UV/VIS spectroscopy and microscopy.o Basic separation techniques – volatility, polarity, acid/base, liquid/liquid, Sep-Pak, rotovap, centrifuge, distillation, and lyophilization.Publications:A comparison of quantitative nuclear magnetic resonance methods: internal, external, and electronic referencing, Magn. Reson. Chem. 2013 Nov;51(11):705-13. 16 citations by 67 authors as of 7/20/2024.NMR Study of the Bis-Crown Effect, published to Benedictine University and Argonne National Lab in collaboration with Argonne National Lab, 2004. Two Dimensional 29Si NMR Investigation of the Structure of Dealuminated Mordenite, Texas A+M University NMR Newsletter #246, March 1994.Presentations:Relative Response Factors for Impurities by Chromatographic Methods using Nuclear Magnetic Resonance Spectroscopy. 2014 Baxter/UIC NMR Exchange Meeting.

Listed skills include Solid State Nmr, 1H Nmr, Carbon Nmr, Polymer Characterization, and 47 others.