Figure 2 | Scientific Reports

Figure 2

From: A Low-Cost Palmtop High-Speed Capillary Electrophoresis Bioanalyzer with Laser Induced Fluorescence Detection

Figure 2

(a) Schematic diagram of the instrument structure; (b1–b3) Schematic diagram of the LIF module: (b1) Diagram of dispersed optical components, capillary and the special designed holder; (b2) Diagram of the assembled LIF module with a capillary; (b3) Diagram of the assembled LIF module integrated with a capillary and slotted vial array for CE injection and separation; (c) Linear relationship of fluorescence intensity to concentration in the test of limit of detection for sodium fluorescein. Sodium fluorescein concentrations: 5, 10, 20, 100 nM in 5 mM borate buffer (pH 9.2). (d) Typical recording of LIF intensity signals of 5 nM sodium fluorescein in the test of limit of detection.

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