Evaluation of Bioplastics Analysis by Pyrolysis-GC/MS
Analyzing Microplastics in the Environment
Poster Presentation
Prepared by J. Gundersen, R. Burgess, K. Ho
US EPA ORD CEMM ACESD, 27 Tarzwell Dr, NARRAGANSETT, RI, 02882, United States
Contact Information: [email protected]; 401-782-3044
ABSTRACT
As concern about the impact of conventional, petroleum-based plastics grows, bioplastics (BPs) have emerged as potentially sustainable alternatives. The fate of BPs in the environment remains uncertain and some may breakdown into nano- and micro-plastics forms in a similar manner to petroleum-based plastics. Potential adverse ecological effects of nano- and micro-BPs are not well defined. If they do form nano- or micro-BPs, methods and approaches will be needed to measure and identify these classes of plastics. To evaluate methods for identifying and quantifying BPs in the environment, polylactic acid (PLA), poly-L-lactic acid (PLLA), polyhydroxybutyrate (PHB), polyhydroxyalkanoate (PHA) and a PHB/PHV (polyhydroxyvalerate) copolymer were analyzed by single shot and double shot pyrolysis-GC/MS methods as solids and in solution. Results indicate that the method of analysis can affect the pyrolyzates formed and may ultimately affect the identification of the biopolymer.
Analyzing Microplastics in the Environment
Poster Presentation
Prepared by J. Gundersen, R. Burgess, K. Ho
US EPA ORD CEMM ACESD, 27 Tarzwell Dr, NARRAGANSETT, RI, 02882, United States
Contact Information: [email protected]; 401-782-3044
ABSTRACT
As concern about the impact of conventional, petroleum-based plastics grows, bioplastics (BPs) have emerged as potentially sustainable alternatives. The fate of BPs in the environment remains uncertain and some may breakdown into nano- and micro-plastics forms in a similar manner to petroleum-based plastics. Potential adverse ecological effects of nano- and micro-BPs are not well defined. If they do form nano- or micro-BPs, methods and approaches will be needed to measure and identify these classes of plastics. To evaluate methods for identifying and quantifying BPs in the environment, polylactic acid (PLA), poly-L-lactic acid (PLLA), polyhydroxybutyrate (PHB), polyhydroxyalkanoate (PHA) and a PHB/PHV (polyhydroxyvalerate) copolymer were analyzed by single shot and double shot pyrolysis-GC/MS methods as solids and in solution. Results indicate that the method of analysis can affect the pyrolyzates formed and may ultimately affect the identification of the biopolymer.