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Table 9 Zn concentrantions in the leaves in positions 04 from top to bottom with 0: rosette and 4: mature leaf, sampled from three plants

From: Analysis of trace metal distribution in plants with lab-based microscopic X-ray fluorescence imaging

Sample Pos 0
µXRF [mg kg−1]
Pos 0
ICPMS [mg kg−1]
Pos 1
µXRF [mg kg−1]
Pos 1
ICPMS [mg kg−1]
Pos 2 and 3
µXRF [mg kg−1]
Pos 2 and 3
ICPMS [mg kg−1]
Pos 4
µXRF [mg kg−1]
Pos 4
ICPMS [mg kg−1]
Mean 2840 3181 2271 2763 3496 3453 7838 4250
Standard error 345 615 245 980 308 503 1438 872
RSE  % 5.66 9.77 0.62 29.68
  1. Please note that the same leaves were used for µXRF and ICP-MS, but entire leaves were digested for ICP-MS, not only the area on them that was measured by µXRF. These values are corrected to match the difference in mass between the fresh leaves in µXRF with dry mass in ICPMS. The relative standard error percentage (SE/mean  %, with n = 2 and SE = STDEV/sqrt(n)) shows the difference between the µXRF result and the ICP-MS