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 Expert  107647

Expert in Technical Problem-Solving for Materials and Processes

Available for your Consulting and Expert Witness Needs

Minnesota (MN)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness Market Research

Summary of Expertise:

Listed with other top experts in: 

Expert has extensive experience in both gas and liquid chromatography. He has studied theoretical mechanisms of separation and published application techniques in environmental and biological areas. Skilled in the use of data acquisition and data handling systems, Expert is particularly adept with the analysis and interpretation of chromatography data. He has some recent experience in supercritical fluid extraction and chromatography.

Expert has developed numerous methods based on chromatographic separations. Methods have been developed for analytes in both environmental and biological matrices, as well as active ingredients in various formulations. These methods have reliably determined analytes at the part-per-million, part-per-billion, and even part-per-trillion levels. His method for determining formaldehyde in environmental samples has been published by the US EPA as Method 8315.

Expert has many years of experience in troubleshooting HPLC systems and methods. He can diagnose both mechanical instrument and chemical method problems and make repairs or corrections as necessary. He has developed and presented training courses on chromatography troubleshooting.

Skilled in all aspects of quantitative analysis, Expert is an expert in determining trace levels of impurities, active ingredients (major percentage), and complete characterization (mass balance) of formulations. He has used chromatographic, spectroscopic, and wet chemistry techniques.

A significant portion of Expert's career has been devoted to experimental design. He has published articles on application of experimental design strategies for optimizing analytical methods. He has studied the application of design of experiments (DOE) in gas chromatography, liquid chromatography, and supercritical fluid extraction.

Expert is knowledgeable of all areas of supercritical fluid extraction (SFE). He has published and presented results on the application of SFE to extraction of dioxins, PCBs, pesticides, amines, hydrocarbons, and phthalates. He has determined these analytes in soils, waters, feeds, and plastics.

As part of his method development experience, Expert is adept at designing procedures for effectively removing components of interest from sold samples.

Expert has extensive experience in all aspects of analytical chemistry, with an emphasis on organic-analytical techniques. He has taught analytical chemistry courses at the college and graduate level, developed training courses for laboratory staff, managed technical analytical groups, and consulted with a wide variety of industries on numerous topics.

Expert has developed numerous extraction procedures in his work as an analytical chemist. He also develops and presents training courses on sample preparation.

The correct answer to an analysis problem only results when you choose the correct technique. Expert's extensive experience in a variety of techniques (separations: HPLC and GC; SFE/SFC; FTIR; SEC/GPC; SEM; etc.) allows him to select the most appropriate analytical approach. The solution to most problems should start with the question, "What is the problem?"


chromatography data analysis


chromatography method development


high-performance liquid chromatography troubleshooting


liquid chromatography


quantitative chemical analysis


design of experiments


supercritical fluid extraction


solid extraction


analytical chemistry


chemical analysis extraction


analysis technique

Expert has considerable experience helping medical device manufacturers develop and market their products. Device development activities have included: materials selection for components; materials characterization and extractables testing; design of shelf life experiments; and preliminary feasibility testing. Expert also participates in the regulatory approval process, including: preparation of technical data and literature summaries; review of submissions; and technical writing and reviewing. Once the product is in production, Expert assists in optimizing processes, designing process validation experiments, and solving production problems.

biomedical device

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Minneapolis, Minnesota;  Saint Paul, Minnesota;  Rochester, Minnesota;  Burnsville, Minnesota;  Saint Cloud, Minnesota;  Eden Prairie, Minnesota;  Minnetonka, Minnesota;  and Eau Claire, Wisconsin.

Year   Degree   Subject   Institution  
1982   Ph.D.   Organic-Analytical Chemistry   Iowa State University  
1976   B.S.   Chemistry   University of Wisconsin, River Falls  

Work History:
Years   Employer   Department   Title   Responsibilities

1993 to 2001







He provides consulting and independent contractor services and works with the development and presentation of technical staff training seminars.

1988 to 1993


Twin City Testing Corporation



Manager/Technical Director


He managed several different groups, including Method Development, Industrial Chemistry, and GLP. Expert also provided technical oversight and review of laboratory operations.

1985 to 1988


Battelle Memorial Institute



Principal Research Scientist


Expert was the project manager in the analytical chemistry department for both industrial and government clients. He was the Group Leader for the HPLC section.

1982 to 1985


SUNY - Buffalo


Chemistry Department


Assistant Professor of Chemistry


He prepared grant proposals, directed undergraduate and graduate research, and taught analytical chemistry courses at the undergraduate and graduate level.

1997 to 2000


Uroplasty, Inc.



Technical Director


Expert reviewed technical characteristics for GMP production of medical devices and development of new devices. He also wrote and edited technical and regulatory submissions, optimized processes and solved processing problems, and coordinated clinical complaints.

Career Accomplishments:

Expert is a member of the American Chemical Society, the Minnesota Chromatography Forum, and the Association of Consulting Chemists and Chemical Engineers.

Professional Appointments

He is on the Governing Board of the Minnesota Chromatography Forum. Expert is also a Member, and is on the Scientific Advisory Board, of Novamed Medical Manufacturing Corporation.


He is listed in Who's Who in America.

Publications and Patents Summary

Expert has more than 20 publications and has given more than 30 presentations at local, national and international meetings.

Selected Publications and Publishers  
 - Encyclopedia of Separation Science  

Consulting Services:
Selected Consulting Examples:
  • Expert wrote and edited technical documentation, technical summary, characterization, risk assessment, literature review, etc., in support of submission by medical device manufacturers for CE marking. CE marks were awarded to each manufacturer.
  • He assisted a manufacturer in understanding the cause of plastic component field failures. He coordinated analytical testing, interpreted results, suggested failure modes and worked with a multi-disciplinary team.
  • He reviewed analytical capabilities and QC program for a major gas manufacturer. Expert recommended technology changes as well as philosophical changes in the entire QA/QC program.
  • He provided on-site training to customers in pharmaceutical, food, and testing industries. He customized his presentations to meet the needs of individual laboratories.
  • He provided expert advice to a law firm representing a medical device manufacturer in a patent infringement suit. He reviewed testing and reports, and prepared for trial testimony. The case was settled pre-trial in favor of the medical device manufacturer.
Recent Client Requests:
  • Expert for consulting on Fluidic components used in life sciences.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Expert Witness Experience Summary:
Expert has given two depositions. At one, he was an expert witness on waste stream composition. At the other, he was an expert witness regarding chemical characterizations.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

International Experience:
Years   Country / Region   Summary
1999 to 1999   Guam   He delivered customized training seminars at an analytical laboratory.
1997 to 2000   The Netherlands   Expert worked with the staff at a facility for manufacturing medical devices. He reviewed procedures, evaluated new projects, and suggested testing programs and technology options.

Market Research:
Expert assisted medical device manufacturers in obtaining regulatory approval. He prepared and/or reviewed their technical publications in support of products.

Click the green button above to contact Expert for a free initial screening call regarding your marketing research, industry research, and company research needs.  For research needs involving multiple experts or secondary research, a Research Director can be assigned to coordinate the work into a custom report for you as a potentially quicker and more cost effective alternative to doing this work yourself or hiring a boutique consultancy.  Remember, your initial screening call to speak with Expert is free.

Additional Skills and Services:

He has taught the "Practichem" series of training seminars. The series includes the following courses: Analytical Laboratory Techniques; Practical Laboratory Statistics; Analytical Calibration Techniques; Sample Preparation; Troubleshooting Chromatographic Systems; and Advanced Topics in Chromatography.

Supplier and Vendor Location and Selection

He has provided support for clients needing the following: HPLC equipment, GC equipment, gas analyzers, and supercritical fluid systems.

Other Skills and Services

He wrote a Windows-based software program for chemistry application and developed a laboratory clip art collection. Both items have been sold through a software distributor.


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