chemlabconsulting, LLC
J. Stephen Duerr, Ph.D., P.E., CPC  -  Consulting Metallurgist/Chemist

Forensics Specialties

PROFESSIONAL LIFETIME AREAS OF APPLICATION

 

Adhesives/Coatings/Paint
Cosmetics
Expert Consultation
Foods/Beverages/Packaging
Forensic Investigations
Formulation Breakdown/Development
Household/Proprietary/Specialty Products

Identification of Unknowns
Materials Failure Analysis
Metals and Alloy Analysis
Personal Injury
Pharmaceuticals
Polymers/Plastics/Resins
Problem Solving
Product Liability
Specification Compliance/Verification

             
EXPERIENCE WITH LABORATORY ANALYSES


ASTM, AOAC, AOCS, and CTFA Methods                                    Oxygen Combustion Procedures

Density/Specific Gravity/Refractive Index                                        Packaging Inspection/Problems

DSC Thermal Analysis                                                                    Refractive Index

Filtration/Extraction/Solubility/Distillation                                           Residue on Ignition, Ash (% Zn, Al, Si, Ti)

Gas Chromatography (FID, TCD, GC/MS)                                       Sediment Analysis

HPLC (UV, refractive index, light scattering)                                    SEM/EDS – Light Microscopy

Infrared and microFTIR Spectroscopy                                              Sieve Analysis (Wet/Dry)

Method Development/Validation                                                       Specific Ion Electrodes

Microbiology (USP, CTFA, and BAM Methods)                               Temperature/Humidity Exposure

Moisture-                                                                                        Thin Layer Chromatography (TLC)

      Karl Fischer Titration (Volumetric, Coulometric)                          TOC (Total Organic Carbon)

      Gas Chromatography                                                                  USP, NF, EP, FCC, and ACS Monographs

      Toluene/Xylene Distillation                                                          UV/Visible and Fluorescence Spectroscopy

      Oven (heat and/or vacuum)                                                         Viscosity/pH/Optical Rotation


FORENSICS - - - MATERIALS FAILURE ANALYSIS - - - CHEMISTRY

 

Additives/Plasticizers/Fillers/Stabilizers                           Materialography/Cross Sections/Imaging

Adhesion/Welds/Braze Joints/Fasteners                           Mechanical Components/Relays/Valves

Biocide/Fungicide/Preservative Challenges                           Medical Devices/Implants/Supplies/Prostheses

Ceramics/Glass/Bottles/Furniture                           Metals/Alloys/Jewelry/Plating

Chemical Burn/Irritation/Injury                                   Microbiology

Coatings/Films/Residues                           Microelectronics Components/Devices

Composites/Fiberglass/Graphite                           Oils/Greases/Lubricants

Controlled Substances/Poisons/Alcohol                           Packaging/Stability/Barrier Layers

Corrosion/Contamination/Discoloration/Wear                           Particulates/Powders/Beads/Fibers

Deadhesion/Peeling/Release Layer                           Pipe/Tubing/Flexible Hose

Drug Detection/Identification/Evidence                           Plastics/Rubber/Polymers/Exudates/Extractables

Electrical Components/Switches/Appliances                           Printing/Converting/Paper/Coating/Inks/Films

Fall/Slip/Trip Cause                           Structures/Bridges/Cranes/Scaffolding

Fire/Explosion Residues/Lead                           Tanks/Pools/Boilers/Filters

Fracture Mode/Cause Determination                           Tools/Implements/Instruments/Springs

Headlight Filament (On/Off)                           Toys/Playground Equipment/Bicycles

Identification of Unknowns                           Trace Elements/Composition

Ladders/Chairs/Lifts/Stools                           Vehicles/Airplanes/Trailers/Seat BeltsLeaks/Breaks/Spills/Mixing                           Wire/Cable/Rope/Straps/Insulation

J. Stephen Duerr, Ph.D., P.E., CPC
chemlabconsulting, LLC
514 Corrigan Way
Cary, NC 27519

908-500-9333

chemlabconsulting@gmail.com
www.chemlabconsulting.com
Website Builder