Table 2. Filter ion occupancy Site/ion... | Rockefeller University Press

Table 2.

Filter ion occupancy

Site/ion	Rb⁺	Cs⁺	Ba²⁺ in K⁺	Ba²⁺ in Na⁺
S0	NA	NA	NA	0.44^a
S1	0.69	0.68	0.95 (as K⁺ ion)	0.24
S2	NA	NA	NA	NA
S3	0.68	0.75	0.74 (as Ba²⁺ ion)	1.00
S4	0.58	NA	NA	NA

NA, not applicable.

H₂O was not taken into account in the occupancy calculation for site 0 Ba²⁺, as water has never been observed at this site.