Table 3 Selectivity coefficient values of sensors (I, II, and III).

From: Electrochemical investigation of oxytrol in fizzy drinks and juices via graphene and polymer printed PVC by ANOVA and design expert

Interfering

substance

Kpot D, B Printed- sensor

Kpot D, B Carbon paste ISPEs

(I)

(II)

(III)

SSM

MPM

SSM

MPM

SSM

MPM

K+

1.19 × 10–4

 

3.34 × 10–4

 

1.01 × 10–4

 

Na+

2.01 × 10–4

 

6.53 × 10–4

 

4.91 × 10–4

 

Cr3+

8.37 × 10–3

 

6.57 × 10–3

 

3.69 × 10–3

 

Mn2+

6.23 × 10–3

 

5.98 × 10–3

 

4.20 × 10–3

 

Co2+

1.24 × 10–3

 

1.39 × 10–3

 

2.56 × 10–3

 

Ni2+

3.36 × 10–3

 

5.24 × 10–3

 

4.50 × 10–3

 

Zn2+

5.42 × 10–3

 

1.13 × 10–3

 

1.40 × 10–3

 

Cd2+

1.58 × 10–3

 

1.55 × 10–3

 

1.39 × 10–3

 

Al3+

2.11 × 10–3

 

2.48 × 10–3

 

3.01 × 10–3

 

Fructose

 

5.85 × 10–4

 

9.28 × 10–5

 

2.13 × 10–5

Lactose

 

3.39 × 10–4

 

3.19 × 10–4

 

2.50 × 10–4

Maltose

 

4.23 × 10–5

 

3.60 × 10–4

 

3.16 × 10–4

Sucrose

 

5.32 × 10–5

 

5.14 × 10–5

 

2.23 × 10–4

Starch

 

3.55 × 10–5

 

1.32 × 10–5

 

3.16 × 10–5

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