Incubation days

NaHCO₃

NaOH

HCl

TP add up

ashTP

residue

7

44 a

244 a

160 a

448 a

557 a

109 a

15

38 a

250 a

145 a

433 a

557 a

124 a

30

44 a

213 a

148 a

406 a

557 a

151 a

45

52 a

244 a

155 a

451 a

557 a

106 a