Dr. Joseph Edwin

Data Review Analyst, TestAmerica

Mass Spectral Chemistry

Dr. Joseph Edwin has over 20 years of experience in the environmental testing industry and over 44 years in chemistry research.

As TestAmerica's Data Review Analyst, Dr. Edwin has provided his expertise in online method development and the implementation of GC/MS methodologies. Dr. Edwin is primarily responsible for employing the GC/MS method in SIM mode under the Status and Trends Program for analyzing Alkylated PAHs in environmental samples. He has also played a key role in implementing the new CLP method SOM1.0 through SOM1.2 for analysis of semivolatile organics.

Dr. Edwin is the technical expert for performing optimization of GC/MS methods for the analysis of Volatiles and Semivolatile organics in water, soil, sediment, tissue and PUF samples. He also continues to supervise new analysts and is a technical consultant to project managers and lab chemists in performing data review and QA/QC functions related to GC/MS analysis of volatile and semivolatile organics by CLP, SW-846 and other special analytical methods such as Isotopic Dilution and SIM techniques.

Dr. Edwin earned his Ph.D. in Chemistry from Philipps University in Marburg, Germany.

Publications

Edwin, J., Geiger, W.E. Structural Changes Coupled to Two-Electron-Transfer Reactions: Oxidation Mechanism of Pseudo-Triple-Decker Complexes of Co and Rh. J. AMER. CHEM. SOC., 1990, 112, 7104.

Geiger, W.E., Salzer, A.; Edwin, J., Philipsborn, W. von, Piantini, U., Rheingold. A.L. Electrochemically Induced Insertion of Ruthenium Atoms into a C-C Bond; Reversible slicing of a Cyclooctatetraene Ligand. J. AMER. CHEM. SOC., 1990, 112, 7113.

Edwin, J., Geiger, W.E., Salzer, A., Rheingold, A.L. Electrochemically Induced Reversible Insertion of Ruthenium Atoms into an Eight-Carbon chain. J. AMER. CHEM. SOC.., 1987, 109, 7893.

Edwin, J., Geiger, W.E., Connelly, N.G., Orpen, A.G., Brammer, L., Sheridan, J.B. The One-Electron Oxidation of (1,5-Cot)RhCp: Rearrangement of the Radical Cation and of the Resulting Dimerization Product. ORGANOMETALLICS, 1988, 7, 1259

Edwin, J., Geiger, W.E., Bushweller, C.H. Rearrangement Mechanisms in Slipped-Tripledecker Complexes of Co and Rh. ORGANOMETALLICS, 1987, 7, 1486.

Edwin, J., Geiger, W.E. Electrochemical Studies of the Preparation and One-electron Reduction of Half-Sandwich Cobalt-Arene Cations. ORGANOMETALLICS, 1984, 3, 1910.

Edwin, J., Geiger, W.E., Rheingold, A.L. Structural Rearrangements in the Two-electron Oxidation of Dimetal Cyclooctatetraene Compounds. Structure of the 34e Tripledecker Dication. J. AMER. CHEM. SOC., 1984, 106, 3052.

Edwin, J., Siebert, W., Krueger, C. Synthesis and Crystal Structure of Bis (3,4-Diethyl-2,5-Dimethyl-1,2,5 Thiadiborolene)Monocarbonyliron. J. ORGANOMET. CHEM., 1985, 282, 297.

Edwin, J., Boehm, M.C., Chester, N., Hoffman, D.M., Hoffmann, R., Pritzkow, H., Siebert, W., Stumpf, K., Wadepohl, H. Complexes with Interactions between Metals and Aliphatic Groups of Boron Compounds. Synthesis and Reactivity of (Cyclopentadienyl) Cobalt (1,3-Diborolene) Complexes, a Novel Type of Sandwich Compounds with a Pentacoordinated Carbon Atom. Molecular Structure of (Cyclopentadienyl) Cobalt (1,3,4,5-Tetramethyl-2-Methyl-1,3-Diborolene). Extended Hueckel and INDO MO Studies. ORGANOMETALLICS, 1983, 2, 1666.

Edwin, J., Bochmann, M, Boehm, M.C., Brennan, D.E., Geiger, W.E., Krueger, C., Pebler, J., Pritzkow, H., Siebert, W., Swiridorff, W, Wadepohl, H., Weiss, J, Zenneck, U. Tripledecker Sandwich Complexes. Syntheses, Reactivity, Electrochemistry and X-ray Crystal and Electronic Structures of Bis(Cyclopentadienylmetal)1,3-Diborolenyl Complexes with 29-34 Valence Electrons. J. AMER. CHEM. SOC., 1983, 105, 2582.

Siebert, W., Edwin, J., Wadepohl, H., Pritzkow, H. 1,3-Diborolenyl Tetradecker Complexes. ANGW. CHEM., 1982, 94, 148.

Siebert, W., Edwin, J., Pritzkow, H. Cyclopentadienyl(1,3-Diborolene)Cobalt-A New Type of Sandwich Complex with a Pentacoordinated Carbon Atom. ANGEW. CHEM., 1982, 94, 147.

Edwin, J., Siebert, W., Krueger, C. An Unusual Reaction Product from 1,3-Diborolene and Tetracarbonylnickel. Structure of a Bis(allyl)nickel Complex. J. ORGANOMET. CHEM., 1981, 215, 255.

Koehler, F.H., Edwin, J., Zenneck, U., Siebert, W. Multinuclear NMR-Studies of a Paramagnetic Tripledecker. J. ORGANOMET. CHEM., 1981, 208, 137.

Siebert, W., Edwin, J., Bochmann, M. Paramagnetic Tripledecker Complexes. ANGEW. CHEM., 1978, 90, 917.

Siebert, W., Bochmann, M., Edwin, J. Synthesis and Structure of Cyclopentadienyl(1,3-Diborolenyl)nickel. Z. NATURFORSCH., 1978, 33b, 1410.

Siebert, W., Full, R., Edwin, J., Kinberger, K. Syntheses and Properties of 1,2,5-Thiadiborolene Derivatives. CHEM. BER., 1978, 111, 823.

Siebert,W., Full, R., Edwin, J., Kinberger, K., Krueger, C., Tsay, Y.H. Diborylethylene Compounds as Ligands in Metal Complexes. Syntheses, Structure and Bonding in Thiadiboroleneiron Complexes. J. ORGANOMET. CHEM., 1977, 131, 1.