Laboratory Case Studies

Read and download examples of Jordi Labs’ 30 years of analytical laboratory testing services.

• Polyethylene Molecular Weight Determination by GPC and Light Scattering Learn More
  A NIST 1475a polyethylene certified reference material and a low density polyethylene were tested using standardized GPC versus polystyrene standards and using Tetradetection GPC with light scattering to compare the utility of the two methods.
• FTIR for Lot QC of Polymers Learn More
  The objective of this study was to highlight the ability of FTIR to be used as a routine QC method for polymeric materials, in this case to identify the general polymer class.
• FTIR for Identification of Contamination Learn More
  The objective of this study is to highlight the ability of FTIR to detect inconsistencies, including percent level contamination or degradation in a material.
• Polymer Ratio Determination using 13C Nuclear Magnetic Resonance (NMR) Learn More
  The purpose of this work was to determine the monomer type and the monomer ratio in a polypropylene-polyethylene blend.
• Identification of Polymer Long Chain Branching Learn More
  The purpose of this work was to compare the long chain branching characteristics of a series of polyethylene samples using Temperature Rising Elutriation Fractionation (TREF) and High Temperature Tetradetection Gel Permeation Chromatography (GPC-HT).
• Short Chain Polymer Branching Polyethylene Branching Determination Learn More
  The purpose of this work was to compare the short chain branching structure in a low density and a high density polyethylene sample.
• Identify Metals in a Wood Sample Learn More
  The goal of this project was to determine if the wood sample contains gold or other precious metals.
• Degradation of Polyethylene by FTIR and High Temperature GPC Learn More
  The objective of this analysis was to determine if thermal degradation had occurred in a polyethylene sample by Fourier Transform Infrared Analysis (FTIR) and High Temperature Tetradetection Gel Permeation Chromatography (GPC-HT).
• Beauty Product Comparison - Brand Name vs. Generic Perfume Learn More
  A personal care products formulation lab was trying to understand how their imitation version of a popular designer perfume compares to the "real thing".
• Molecular Weight Distribution of PPO Using High Temperature GPC Learn More
  The purpose of this work was to determine the molecular weight distribution of a modified Polyphenylene Oxide (PPO) sample.
• Identify the Thermal Transitions in Polyolefins Learn More
  The objective of this analysis was to identify the thermal transitions in five polyolefin samples.
• Deformulate a Multilayer Film Learn More
  A variety of techniques were used to deformulate this multilayer film including, Optical Microscopy, SEM, FTIR, PYMS and LCMS.
• Bisphenol A (BPA) Leaching from Plastic Drinking Bottles Learn More
  Quantitation of Bisphenol A (BPA) in a polycarbonate water bottle through possible stages of degradation.
• Comparison of SPE Media for a 5 Compound Mixture in Serum Learn More
  Compares two types of Solid Phase Extraction (SPE) media for their ability to efficiently separate and purify a five compound mixture from a serum matrix
• FTIR vs. PYMS Learn More
  Highlight the benefits and limitations of two analytical techniques, FTIR and PYMS.
• MHE-GCMS of Residual Polystyrene Content Learn More
  The objective of this work is to demonstrate the use of multiple headspace extraction for the quantitative determination of organic volatiles in solid matrices.
• Headspace GCMS v Desorption Mass Spec Learn More
  Compare Headspace Gas Spectroscopy (HS-GCMS) and Desorption Mass Spectroscopy (DMS).
• MW Comparison of Polycarbonate Water Bottles Subjected to Thermal Treatments Learn More
  Determine if any change in molecular weight occurred in a Polycarbonate Water Bottle that was exposed to various thermal treatments which simulate typical washing processes.
• Quantitation of Stearamide & Antioxidants Learn More
  Quantitation of a series of components in an extruder buildup including stearamide and a series of antioxidants.
• Solutions At a Glance Learn More
  Presents several solutions that have been provided to Jordi clients using a variety of techniques found at Jordi Labs.
• SPE Method Development for Pesticides Learn More
  The objective of this work was to develop a suitable SPE method for pesticide standards, to include Aldicarb Pestanal Standard, Aldicarb-Sulfone Pestanal Standard and Oxamyl Pestanal Standard.
• Unknown Extruder Build-Up Learn More
  Why an extruder used for processing polyolefin experienced a build-up of an unknown material.