Custom Polymer Synthesis Dilute Solution Viscosity Extractions & Digestions

Physical Testing

Thermal Analysis

Gas Chromatography Gas Chromatography / Mass Spectrometry (GC/MS) Headspace Gas Chromatography / Mass Spectrometry (Headspace GC/MS) High-Performance Liquid Chromatography (HPLC) Size Exclusion Chromatography (SEC) / Gel Permeation Chromatography (GPC)

Chemical and Thermal Digestion Solvent Extractions

Atomic Force Microscopy (AFM) Image Analysis Optical Birefringence Optical Microscopy Scanning Electron Microscopy / Energy Dispersive Xray Spectroscopy (SEM/EDS) Transmission Electron Microscopy (TEM)

Compression Custom Fixture Development Durometer Flex (3 & 4 Point Bend) Melt Flow Index (MFI) Specific Gravity & Density Determination Tensile (Film, Plastic, Rubber)

Auger Electron Spectroscopy (AES) Fourier Transform Infrared Spectroscopy (FTIR) Inductively Coupled Plasma (ICP) Analysis Nuclear Magnetic Resonance Spectroscopy (NMR) X-ray Photoelectron Spectroscopy (XPS)

Differential Scanning Calorimetry (DSC) Dynamic Mechanical Analysis (DMA) Rheology Thermogravimetric Analysis (TGA)

Karl Fischer Halide Analysis Potentiometric

Additives Analysis Aging & Chemical Resistance Testing Comparative Analysis Compounded Polymer Analysis Contamination Analysis Custom Method Development & Testing Deformulation & Competitor Product Analysis Depth Profiling and Surface Analysis Extractables & Leachables Analysis Failure Analysis Imported Goods Testing Inductively Coupled Plasma (ICP) Analysis Material Certification & Qualification Medical Product Testing Molecular Weight Analysis Phthalates Analysis Polymer Structure Analysis Quality Control Assurance Research & Development Routine Testing Services

Expertise Litigation Support

Additives Analysis Counterfeit Plastic Defect Identification Stolen Formulations

Automotive Consumer Product Testing Litigation Support Medical Devices Packaging Pharmaceutical Plastics, Polymers, Rubber

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Extractions & Digestions

Solvent Extractions

Washes samples with hot solvent to remove soluble portion.

Applications:

Determination of percent extractables

Filler content determination

Additive removal for further analysis

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Work We've Done

Silicone Tubing

A client had several samples of silicone tubing. The tubing needed to be tested to ensure that no undesired chemical compounds would move out of the tubing during standard use conditions. The tubing samples were extracted in Soxhlet extractors with three different solvents to remove any leachable compounds. The solvent extracts were then analyzed with Nuclear Magnetic Resonance Spectroscopy (NMR), Fourier Transform Infrared Spectroscopy (FTIR), and Gas Chromotography/Mass Spectrometry (GC/MS) to identify the leached compounds.

Semiquantitative analysis was also performed by comparing the intensity of the GC/MS signals from the sample with an internal standard. The primary compounds extracted were silicone oligomers, with a small amount of plasticizer.

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