The impact of microplastics on wildlife is a recent problem for which methods to evaluate exposure still need development. Being able to identify and quantify microplastics (particles 80 %) and good (>60 %) recovery efficiencies within two and four days after ingestion of microplastics by crocodiles Method name: Stomach flushing method to evaluate microplastics, Keywords: Stomach content, Digestive transit time, Recovery efficiency, Crocodilians, Microplastics exposure, FTIR