Huynh, C., Vo, V., Nguyen, N. and Nguyen, M. 2019. Primary and secondary amine material based on crosslinked polystyrene: synthesis and initial application for multiresidue pesticides analysis. Science & Technology Development Journal: Natural Sciences. 2, 2 (May 2019), 47-53. DOI:https://doi.org/https://doi.org/10.32508/stdjns.v2i2.733.