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Table 2 Comparative study using immobilized CQDs/ZnO-BM 19.21 fluorescence immunosensing system and electro-chemiluminescence immunoassay [6]

From: New Immunosensing-Fluorescence Detection of Tumor Marker Cytokeratin-19 Fragment (CYFRA 21-1) Via Carbon Quantum Dots/Zinc Oxide Nanocomposite

Samples no.

Immobilized CQDs/ZnO-BM 19.21 fluorescence immunosensing system

Electro-chemiluminescence immunoassay [6]

Found, ng mL1

%RSD (n = 6)

Found, ng mL1

%RSD (n = 6)

1

0.2

± 1.3

0.1

± 1.1

2

0.6

± 0.8

0.4

± 0.5

3

1.1

± 0.5

0.9

± 1.0

4

2.0

± 0.2

1.7

± 0.6

5

2.1

± 0.4

2.0

± 0.6

6

1.8

± 0.7

1.5

± 0.2

7

0.9

± 1.0

0.6

± 1.1

8

1.4

± 0.3

1.1

± 0.7

9

2.3

± 0.1

2.1

± 0.3

10

1.5

± 1.2

1.3

± 1.4

11

1.0

± 1.3

0.7

± 1.6

12

0.7

± 1.2

0.6

± 0.7

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