begin {tabular}{||c||c||c||}
hline
 Ion & SBF & HBP \
hline
 Na^{+} & 142 & 142 \
 hline
 K^{+} & 5 & 5 \
 hline
 Mg^{2+} &  1.5 & 1.5 \
 hline
end{tabular}