[Retracted] Functionalized Ferroferric Oxide Nanomagnetic Beads for Extraction of Nucleic Acid and Its Application in Early Screening of Colorectal Cancer

Figure 4

Nucleic acid extraction experiment for optimal stool sample volume. (a) UV-Vis absorption spectrum. (b) Nucleic acid concentration. (c) Nucleic acid and protein content ratio. (d) Nucleic acid to carbohydrate content ratio.

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