<ul>
<li>🎤 Presenter: Petr Vozka (California State University, Los Angeles, Los Angeles, USA)</li>
<li>💾 <a href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/P_Vozka_MDCW_3801260112/P.-Vozka-MDCW.pdf">Presentation in PDF</a></li>
<li>📁 LabRulezGCMS profile: <a href="https://gcms.labrulez.com/companies/219">Complex Chemical Composition Analysis Lab (C³AL)</a></li>
</ul>
<blockquote>
💡 Book in your calendar: <a href="https://gcms.labrulez.com/events/436">15th Multidimensional Chromatography Workshop (MDCW) January 2024</a>
</blockquote>
<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/15th_Multidimensional_Chromatography_MDC_Workshop_Main_Banner_45f9ba053d/15th-Multidimensional-Chromatography-(MDC)-Workshop-Main-Banner.jpg" alt="15th Multidimensional Chromatography (MDC) Workshop 2024"/>
<h3>Abstract</h3>
<a href="https://gcms.labrulez.com/library?instrumentationItems=2">Comprehensive two-dimensional gas chromatography</a> (GC×GC) has become the state-of-the-art instrument for qualitative and quantitative analysis of volatile and semi-volatile complex mixtures and has emerged as a powerful separation tool for studying:
<ul>
<li><a href="https://gcms.labrulez.com/library?categoryItems=1&amp;instrumentationItems=2">environmental samples</a></li>
<li><a href="https://gcms.labrulez.com/library?categoryItems=4&amp;instrumentationItems=2">petroleum fractions</a></li>
<li><a href="https://gcms.labrulez.com/library?instrumentationItems=2&amp;search=POPs">persistent organic pollutants</a></li>
<li><a href="https://gcms.labrulez.com/library?instrumentationItems=2&amp;search=drugs">drugs</a></li>
<li>and many more...</li>
</ul>
In the past 60 years, plastic waste has increased exponentially, while only 9% of plastic waste has been recycled and 12% incinerated. The remaining 79% (about 6 billion tons) of plastic waste has accumulated in landfills or oceans, where they slowly degrade and release microplastics and other toxic chemicals into the environment. To reduce the amount of plastic waste, conversion methods such as pyrolysis and hydrothermal processing are used to make oils, which can be further used to produce alternative fuels. These fuels have an alkene (olefin) content of up to 50 wt.%. Unfortunately, there are currently no methods for detailed quantitation of olefins in such concentrations.
<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/MDCW_Petr_Vozka_Chemical_conversion_of_plastic_waste_into_fuels_7d93807821/MDCW-Petr-Vozka-Chemical-conversion-of-plastic-waste-into-fuels.jpg" alt="MDCW/Petr Vozka: Chemical conversion of plastic waste into fuels"/>
This talk aims to introduce a novel method applicable for the characterization and quantitation of aliphatic olefins in complex oils from plastic depolymerization, alternative, and petroleum-based fuels using GC×GC with a flame ionization detector. The talk also introduces teaching strategies for GC×GC technique inclusion to the laboratory portion of class syllabi.
<blockquote>
💡 The Multidimensional Chromatography Workshop (MDCW) <a href="https://gcms.labrulez.com/companies/218">Profile LabRulezGCMS (EN)</a>
</blockquote>
<blockquote>
💡 The Multidimensional Chromatography Workshop (MDCW) <a href="https://lcms.labrulez.com/companies/218">Profile LabRulezLCMS (EN)</a>
</blockquote>
<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/MDCW_Petr_Vozka_GC_GC_Training_Research_Facility_d25fe9ffe8/MDCW-Petr-Vozka-GCGC-Training-Research-Facility.jpg" alt="MDCW/Petr Vozka: GC×GC Training/Research Facility"/>
<h3>Presentation content</h3>
<ul>
<li>Comprehensive Two-Dimensional Gas Chromatography (GC×GC)
<ul>
<li>Introdction</li>
<li>GC×GC Chromatogram</li>
<li>Diagram of a GC×GC Instrument</li>
<li>How GC×GC is achieved</li>
<li>Modulation</li>
<li>GC×GC Chromatogram</li>
<li>GC×GC Classification</li>
<li>Quantitative results (some)</li>
</ul>
</li>
<li>Quantitative Analysis of Aliphatic Olefins in Fuels made from Plastic Waste by GC×GC
<ul>
<li>Detailed Analysis of Complex Chemical Mixtures</li>
<li>Plastic Waste in Oceans</li>
<li>Plastic Waste -Landfill</li>
<li>The growing plastic waste problem</li>
<li>Chemical conversion of plastic waste into fuels</li>
<li>DMDS Derivatization</li>
<li>Calculations</li>
<li>Results</li>
<li>Validation</li>
<li>Methods -disadvantages</li>
<li>Chromatogram –diesel-like sample pre-derivatization</li>
<li>Chromatogram –diesel-like sample post-derivatization</li>
<li>Future work</li>
</ul>
</li>
<li>GC×GC in Academia/Teaching
<ul>
<li>Course: Analytical Separations and Mass Spectrometry</li>
</ul>
</li>
</ul>
<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/MDCW_Petr_Vozka_Diagram_of_a_GC_GC_Instrument_6a8ed03c86/MDCW-Petr-Vozka-Diagram-of-a-GCGC-Instrument.jpg" alt="MDCW/Petr Vozka: Diagram of a GC×GC Instrument"/>
<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/MDCW_Petr_Vozka_How_GC_GC_is_achieved_4678d7bc6f/MDCW-Petr-Vozka-How-GCGC-is-achieved.jpg" alt="MDCW/Petr Vozka: How GC×GC is achieved"/>
<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/MDCW_Petr_Vozka_GC_GC_Classification_62e9991a8b/MDCW-Petr-Vozka-GCGC-Classification.jpg" alt="MDCW/Petr Vozka: GC×GC Classification"/>

Quantitative Analysis of Aliphatic Olefins in Fuels made from Plastic Waste by Comprehensive Two-Dimensional Gas Chromatography (Petr Vozka, MDCW 2023)

<ul>
<li>🎤 Presenter: Tijmen Bos¹, Jim Boelrijk², Stef Molenaar², Dwight Stoll³, Bob Pirok²´³ (¹Vrije Universiteit Amsterdam, Amsterdam, Netherlands. ²University of Amsterdam, Amsterdam, Netherlands. ³Gustavus Adolphus College, Saint Peter, USA)</li>
</ul>
<blockquote>
💡 Book in your calendar: <a href="https://gcms.labrulez.com/events/436">15th Multidimensional Chromatography Workshop (MDCW) January 2024</a>
</blockquote>
<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/15th_Multidimensional_Chromatography_MDC_Workshop_Main_Banner_45f9ba053d/15th-Multidimensional-Chromatography-(MDC)-Workshop-Main-Banner.jpg" alt="15th Multidimensional Chromatography (MDC) Workshop 2024"/>
<h3>Abstract</h3>
One and <a href="https://lcms.labrulez.com/library?instrumentationItems=39">two-dimensional liquid chromatography</a> (LC) technology is making remarkable advancements, however the number of potential users remains lagging behind for 2D separations. A prime obstacle for large-scale usage is the considerable investment needed for method development and data processing. Automation in any step of the method development reduces the required investment.
Recently a comprehensive, modular, closed-loop and interpretive algorithm for automated LC method development for complex samples of unknown composition was developed. The idea of these computer platforms is that they can directly and iteratively program the LC with new method parameters obtained from previous raw experimental data until convergence of a specified objective function was reached. Using peak tracking, multi-start regression, retention modelling and Bayesian optimization, such algorithms are capable to automate the selection of several method parameters.
This presentation will discuss the current challenges to scale this automated method development technology to heart-cut and comprehensive 2D-LC separations.

Unsupervised optimization of heart-cut and comprehensive 2D-LC separations (Bob Pirok, MDCW 2023)

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The Multidimensional Chromatography (MDC) Workshop draws experts in this exciting field to share and discuss their research.

Unsupervised optimization of heart-cut and comprehensive 2D-LC separations (Bob Pirok, MDCW 2023)

Quantitative Analysis of Aliphatic Olefins in Fuels made from Plastic Waste by Comprehensive Two-Dimensional Gas Chromatography (Petr Vozka, MDCW 2023)

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