Analytical Contract Lab Providing Particle Size and Characterization Testing Services

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PTLs’ Michael Vinakos to Give Presentation at AFS Filtcon 2018

Michael Vinakos, Particle Characterization Chemist IV and Team Leader at Particle Technology Labs, will be presenting a technical session titled Understanding Particle Size Distributions. Mr. Vinakos’ lecture is one of several offered under the Indoor Air Quality session of the Air/Gas Track.
The session will be offered at the American Filtration & Separations Society’s (AFS) FiltCon 2018 which takes place April 23rd through the 25th, 2018 at the Mystic Lake Conference Center in Prior Lake, Minnesota. The society is a technical, educational, nonprofit organization dedicated to the exchange of information among engineers, scientists, and technologists in all areas of the fluid/separation field.

Mr. Vinakos’ presentation will focus on the interpretation of particle size distribution data and how particle size analysis is performed on captured air emissions samples.

The AFS Filtcon conference will feature 6 plenary sessions, 24 technical sessions, an expo featuring exhibitors, a student poster session and networking opportunities. Filtcon will also feature a selection of short courses. 

Mr. Vinakos joined PTL as a Particle Characterization Chemist I before advancing to his current position as Particle Characterization Chemist IV and Team Leader. In his present supervisory role, Mr. Vinakos directs particle sizing & counting techniques as well as the microscopy & image analysis activities within PTL. His role involves leading complex projects and providing detailed technical review of analytical data. Mr. Vinakos received a Bachelor of Science degree in Biology from DePaul University and a Master of Science degree in Biotechnology and Chemical Science from Roosevelt University.

More information on AFS FiltCon 2018 can be found at:

PTL Announces Paperless Reporting

Particle Technology Labs is pleased to announce that starting in early April, all final reports will be delivered to our clients digitally using Sharefile®, a file sharing service that securely transfers encrypted documents through an easy to use online portal.
How paperless reporting works.
When your final report is complete, you will receive an email with a link to Sharefile®  where you can log in to view your report instantly. If it is your first time using Sharefile®, you will need to sign up for an account, which is very simple. Just enter your name, company name and email. Once you are signed in, you can download your final report as a PDF document.
Final reports will remain available for download on Sharefile® for thirty days.
Further instructions for using Sharefile® are available by clicking here.

Multiple benefits. 

PTL is excited to deliver reports faster with a more positive environmental impact, while at the same time continuing to provide outstanding service and particle characterization results to our clients.

Visit PTL at the 8th World Congress on Particle Technology April 23rd – April 25, 2018

Particle Technology Labs invites you to join us April 23rd through the 25th, 2018 at the Orlando World Center Marriott in Orlando, Florida for the 8th World Congress on Particle Technology.

Held every 4 years since its inception in 1990, the WCPT8 is intended to stimulate discussions on the forefront of research in particle science and technology.
As experts in the field of fine particle technology, we welcome the opportunity to meet with you and discuss questions related to particle size and characterization. Feel free to contact us before the conference to schedule a time to meet during the conference. 630.403.0099.
For more info on the World Congress on Particle Technology itself, please visit

Not Attending?

If you are unable to attend WCPT8, please reach out to us to discuss your particle size and characterization needs.

New at PTL - 3Flex Surface and Catalyst Characterization

New at PTL - 3Flex Surface and Catalyst Characterization

Particle Technology Labs is pleased to announce the installation of our newest advanced instrument, the Micromeritics 3Flex Surface Characterization Analyzer.

The 3Flex instrument is capable of high-performance chemisorption and physisorption (mesopore and micropore) analyses with superior accuracy, resolution, and data reduction.

PTL’s model, the Micromeritics 3Flex Chemi TCD, has wide-ranging capabilities for various chemisorption methods. This includes isothermal methods (static volumetric, and dynamic or pulse chemisorption) as well as temperature programmed methods (temperature-programmed reduction or TPR, temperature-programmed oxidation or TPO, and temperature-programmed desorption or TPD). Furthermore, our instrument can also utilize an organic vapor source as the probe molecules (e.g., pyridine, isopropyl amine, methanol, etc.) in addition to standard gases (e.g., ammonia, H2, CO, etc.) most commonly used in various chemisorption analyses.

Chemisorption measurements are important for surface characterization of catalysts used in several industries including oil and gas (e.g. petroleum refining, syngas conversions, biofuel production, fuel cells), petrochemicals, fine chemicals (e.g. hydrogen production, polymers and plastics production), environmental (e.g. automotive catalytic converters, green chemistry), and many others.


Chemical adsorption, or chemisorption, is a process resulting from a chemical bond between adsorbate molecules and specific surface locations on a material, known as active sites. This interaction is much stronger than physical adsorption, or physisorption, which takes place on all surfaces if temperature and pressure conditions are favorable. Chemisorption only occurs on clean active sites and, unlike physisorption, ceases when the adsorbate can no longer make direct contact with the surface, making chemisorption a single layer process.

Chemisorption measurement techniques are useful for evaluating physical and chemical properties of materials that are critical for process / reaction performance. Primarily, chemisorption is used to evaluate the number of available active sites to increase the rate of, or catalyze, chemical reactions. Other properties can include the (reduction or oxidation) temperature at which catalysts become active, strength of specific types of active sites, or ability of materials to perform after reduction/oxidation cycles.

To read more about chemisorption, click here.

ASTM D3908
Analyses Offered

Chemisorption Tests:

  • Volumetric Chemisorption analysis
  • Dynamic or Pulse Chemisorption analysis
  • Pulse Chemisorption using liquid vapors

Temperature-Programmed Studies:

  • Temperature-Programmed Reduction (TPR)
  • Temperature-Programmed Desorption (TPD)
  • Temperature-Programmed Oxidation (TPO)

Other Chemisorption Experiments:

  • Heat of Desorption, first order Kinetics
  • Isosteric Heat of Adsorption

Particle Technology Labs’ Director of Analytical Services Gives Presentation in Amsterdam

Particle Technology Labs’ Executive Vice President and Director of Analytical Services William K. Kopesky just returned from the Netherlands where he was one of three presenters at The Center for Professional Advancement’s course entitled, Powders: Their Properties and Processing. The three-day event took place December 11th through December 13th, 2017, in Amsterdam.

The primary purpose of the course was to “review the various properties of powdered solids pertinent to the development and manufacture of the products of the pharmaceutical, cosmetic and allied industries.”  While the course was designed for those in product development, the event was attended by scientists, suppliers and technologists.

During the three day course, Mr. Kopesky presented on the following topics:

In his first session, Characterization of Powder Particle Size and Shape, Mr. Kopesky provided insight regarding particle size analysis, distributions and their presentation, and particle shape characterization.

In his second session, Characterization of Particle Surface and Pores, he covered surface area by BET and pore size distribution measurement by both gas physisorption and mercury porosimetry.

In his third and final session, Fine Particle Characterization, dynamic light scattering (photon correlation spectroscopy), zeta potential and flocculation/agglomeration were covered.

Joining PTL as a Particle Characterization Chemist in 2000, Mr. Kopesky became Laboratory Manager in 2002 before being named Managing Director in 2008 and Director of Analytical Services in 2012. His years at PTL have given him exposure to a tremendous variety of particle characterization topics, techniques, and projects spanning many industries including pharmaceutical, nutraceutical, environmental, industrial, and more. During his career with PTL, he has conducted presentations and training in the field of particle characterization, provided testimony for patent infringement cases, and has been involved with consulting services in addition to hands-on analytical work.

The Center for Professional Advancement – CfPA is the largest accredited technical training organization in the world offering technical training and continuing professional education courses to those in the Pharmaceutical, Biotechnology, Medical Device, Chemical Engineering and Cosmetics industries.

For further information about CfPA, click here

To learn more about Particle Technology Labs, click here