Maria Addolorata Saracino et al.
Journal of pharmaceutical and biomedical analysis, 104, 122-129 (2014-12-17)
A new microextraction by packed sorbent (MEPS) procedure coupled to a high-performance liquid chromatographic method has been developed for quantitation of catecholamines (i.e. norepinephrine, epinephrine and dopamine) in innovative biological samples, namely dried plasma and urine spots. Analyses were carried