In this thesis, methods for the analysis of nanoplastic are developed. Initially, a critical review on the state of the art and techniques that can be adapted from adjacent fields, was performed. Secondly, the lower size limit of Raman microspectroscopy (RM) was evaluated in conjunction with scanning electron microscopy. Further, a subsampling strategy for RM, based on window sampling and bootstrap, was evaluated. Finally, a laser-optical focussing-based flow-cell for the online-coupling of RM to field-flow fractionation was developed and characterized.
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In this thesis, methods for the analysis of nanoplastic are developed. Initially, a critical review on the state of the art and techniques that can be adapted from adjacent fields, was performed. Secondly, the lower size limit of Raman microspectroscopy (RM) was evaluated in conjunction with scanning electron microscopy. Further, a subsampling strategy for RM, based on window sampling and bootstrap, was evaluated. Finally, a laser-optical focussing-based flow-cell for the online-coupling of RM t...
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