Table 1 Minimum detection limit (MDL) in units of μM derived from Fig. 1.

From: Ion exchanger in the brain: Quantitative analysis of perineuronally fixed anionic binding sites suggests diffusion barriers with ion sorting properties

Element

P

S

Cl

K

Ca

Mn

Fe

Ni

Cu

Zn

Br

for total area

64

52

41

28

21

6.0

5.5

15

20

17

82

for 1000 μm2

204

163

129

89

65

19

18

48

62

53

259

for 1 μm2

6400

5100

4100

2800

2100

600

550

1500

1900

1700

8200

  1. The MDL depends on the size of the region of interest. The neurons in Fig. 1 are about 1000 μm2 in size.
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