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Figure 1
A) Chromatogram of the 3,4-dihydroxybenzylamine solution, used as the internal standard (the number above the component is the retention time in minutes); B) Identified component with peak height and the area under the peak; IS − internal standard
Figure 2
A) Chromatogram of the ClinTest® Standard Solution (the number above the component is the retention time in minutes); B) Identified components with peak height and the area under the peak; DP − dopamine; E – epinephrine; IS − internal standard; NE – norepinephrine
Figure 3
A) Chromatogram of the extract purified on the alumina cartridge (the number above the component is the retention time in minutes); B) Identified components with peak height and the area under the peak; E – epinephrine; IS − internal standard; NE – norepinephrine
Figure 4
A) Chromatogram of the extract purified by filtration (the number above the component is the retention time in minutes); B) Identified components with peak height and the area under the peak; DP − dopamine; E – epinephrine; IS − internal standard; NE – norepinephrine
Figure 5
A) Chromatogram of the filtrated extract purified on the alumina cartridge (the number above the component is the retention time in minutes); B) Identified components with peak height and the area under the peak; E – epinephrine; IS − internal standard; NE – norepinephrine
Relative retention times of norepinephrine, epinephrine, and dopamine by extract purification method