“…LIBS (GUERRA et al, 2015;CARVALHO et al, 2015b;AWASTHI et al, 2017;EL-DEFTAR et al, 2015;GONDAL et al, 2016) and XRF (GUERRA et al, 2018;ABEROUMAND, 2009;BLONSKI et al, 2007;CHUPARINA;AISUEVA, 2011;DALY;FENELON, 2018;DEMIR et al, 2010;KHRAMOVA et al, 2012;KHUDER et al, 2009;MCLAREN;GUPPY;TIGHE, 2012;NAYAK et al, 2011) have been employed for the determination of macro and micronutrients in different plant leaves, e.g., sugarcane (GUERRA et al, 2015;CARVALHO et al, 2015b;MELQUIADES et al, 2012), cannabis (EL-DEFTAR et al, 2015), black tea (GONDAL et al, 2016), tomato (CARVALHO et al, 2015b;DEMIR et al, 2010), medicinal plants (ABEROUMAND, 2009;CHUPARINA;AISUEVA, 2011;KHUDER et al, 2009), orange (BLONSKI et al, 2007), lemon (BLONSKI et al, 2007) FENELON, 2018). However, in all the above-mentioned studies, prior to analysis, the leaves were either detached from the plants (GUERRA et al, 2018) or pelletized after washing, drying and grinding (ABEROUMAND, 2009;BLONSKI et al, 2007;CHUPARINA;AISUEVA, 2011;DEMIR et al, 2010;KHRAMOVA ...…”