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Table 2 The remainder of cations and zeta potential in metallic cations and HA suspensions

From: Comprehensive understanding of the effects of metallic cations on enzymatic hydrolysis of humic acid-pretreated waste wheat straw

Cations

Concentration (mM)

Remainder of cations (mM)

Zeta potential (mV)

None

\

\

−26.8 ± 0.1

K+

1

ND

−20.18 ± 0.2

5

1.5 ± 0.1

−18.3 ± 0.4

10

4.8 ± 0.2

−16.9 ± 0.2

Na+

1

ND

−19.5 ± 0.1

5

2.7 ± 0.4

−18.4 ± 0.2

10

6.3 ± 0.2

−17.6 ± 0.2

Ca2+

1

ND

−18.4 ± 0.4

5

0.1 ± 0.2

−11.3 ± 0.6

10

0.7 ± 0.0

−6.9 ± 0.1

Fe2+

1

ND

−14.3 ± 0.1

5

ND

−4.6 ± 0.5

10

0.3 ± 0.1

1.3 ± 0.4

Fe3+

1

ND

−12.5 ± 0.3

5

ND

−2.2 ± 0.2

10

0.1 ± 0.0

4.8 ± 0.2

Al3+

1

ND

−14.3 ± 0.4

5

ND

−4.9 ± 0.5

10

0.2 ± 0.1

3.6 ± 0.1