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PRESENTATIONS

2022

  • Williams, J.D.  Using Head-Space Solid Phase Microextraction Gas Chromatography - Mass Spectrometry to identify the volatile composition of seeds abd essential oils. Christina DiFonzo Seminar Series in Biology, Mercyhurst University, Erie PA. March 18th, 2022

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2019

  • *Nguyen, T.; Williams, J. D. Unusual products from the thionation of bicyclic ketones. Proceedings of the 257th American Chemical Society National Meeting & Exposition, Orlando, FL. March 31–April 4, 2019;

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  • Nguyen, T,; Williams, J.D. Quality Control and Adulteration in Commercially Available Essential Oils. Pittcon 2019 Conference and Exposition, ACS Poster Presentation, Philadelphia, PA, March 17, 2019

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2018

  • *Lear C., Williams, J.D. Detection of trihalomethanes in municipal water and bottled water using SPME GC-MS. Pittcon 2018 Conference & Exposition, Orlando, FL February 27, 2018

 

2017

  • Williams, J.D. New compounds detected in the analysis of Sage essential oil. Christina DiFonzo Seminar Series in Biology, Mercyhurst University, Erie PA. February 10th, 2017

 

2016

  • Williams, J.D. Detection of New Thujone Stereoisomers in the Essential Oil and Consumable Products of Sage. Erie Local Section of the American Chemical Society, Gannon University, Erie PA., September 20th., 2016.

  

  • Williams, Jack D.; * Anderson, Kristin A.; *Yazarians Jessica A.; Boyce, Gregory R. Variations in the enantiomeric composition of thujone-containing essential oils Proceedings of the 252nd. ACS National Meeting & Exposition, Philadelphia, PA, United States, August 25th., 2016 AGFD-291

 

2015

  • Williams, J.D.; Boyce, G.R. Ginkgo Biloba: A new look at an old plant. 250th ACS National Meeting & Exposition, Boston, MA, August 16-20, 2015

 

2014

  • Williams, Jack D.; Campbell, Michael A.; *Jaskolka, Michael C. Chiral sesquiterpene volatiles from Artemisia vulgaris L. 248th. ACS National Meeting & Exposition, San Francisco, CA, August 10-14, 2014(2014), AGFD-160

 

  • Williams,Jack D.; *Antunez, Maria F.; *Green, Dejoun C. Using Solid Phase Microextraction in Undergraduate Organic Chemistry Laboratories. It doesn’t get any greener! 45th. Central Regional Meeting of the American Chemical Society, Pittsburgh, PA, October 29-Nov 1 2014(2014), CERMACS-476

 

  • Williams, Jack D.; Campbell, Michael A.; *Jaskolka, Michael C. Accurate Identification of Artemisia vulgaris via DNA Barcoding Poster Presentation: Penn State Behrend - Sigma Xi Twenty-Third Annual Undergraduate Student Research and Creative Accomplishment Conference. April 12th., 2014(2014)

 

2013

  • Williams, J.D.; Campbell, M.A.; *Jaskolka, M.C. *Xie, T. Chiral Constituents and Enantiomeric Composition in the Essential Oil Obtained from Artemisia Vulgaris L. Using Selectable 1-D/2-D Gas Chromatography/Mass Spectrometry. Proceedings of the 2013 Eastern Analytical Symposium & Exposition, Somerset, New Jersey. November 18-20, 2013,

 

  • Volatile composition of roasted Gymnocladus dioicus seeds and their use as a possible coffee substitute Williams, Jack D.; Campbell, Michael A.; *Hobbler, Jennifer S.; *Jaskolka, Michael C. From Abstracts of Papers 246th. ACS National Meeting & Exposition, Indianapolis, Indiana, September 8-12 2013(2013), AGFD 201

 

2012

  • Headspace solid−phase microextraction (HS−SPME) gas chromatography−mass spectrometry (GC−MS) analysis of the essential oils from the aerial parts of Artemisa vulgaris L. reveal the possible existence of new chemotypes, Williams, J.D.; *Xie, T; *Acharya, D.N. From Abstracts of Papers, 244th. ACS National Meeting & Exposition, Philadelphia PA, August 19-23, 2012(2012), AGFD 204

 

2011

  • Composition of the Essential oil from Artemisia vulgaris L. growing in Pennsylvania, USA and its Apoptosis-Dependent Antitumor Activity in Promyelocytic Leukemia Cell Line HL-60 Williams, J.D.; Saleh, A. M.; *Acharya, D. From Abstracts of Papers, 242nd ACS National Meeting and Exposition, Denver, CO, August 28-September 1, 2011(2011), AGFD-149

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