TiO2-based SPE for Selective Elimination of Ribonucleosides from Standard Samples. The selective capturing of ribonucleosides by TiO2-based SPE was examined using ribonucleosides and 2′-deoxynucleosides.
Compared with the direct analysis (Figure 3I), only the peaks of 2′-deoxynucleosides were observed after the SPE treatment (Figure 3II), and the recoveries of these 2′-deoxynucleosides were all above 90%, which demonstrated that the SPE process caused little unspecific adsorption of the targets.
Furthermore, even though the concentration of ribonucleosides was one thousand times higher than that of 2′-deoxynucleosides (200 μg/mL for ribonucleosides and 0.2 μg/mL for 2′-deoxynucleosides), the
TiO2-based SPE can still efficiently capture ribonucleosides (Figure S3 in the Supporting Information).
In this regard, it could be concluded that the proposed TiO2-based SPE exhibited high affinity and specificity toward the normal ribonucleosides and 2′-deoxynucleosides can be efficiently recovered.
TiO2-based SPE for Selective Elimination of Ribonucleosides from Standard Samples. The selective capturing of ribonucleosides by TiO2-based SPE was examined using ribonucleosides and 2′-deoxynucleosides.
Compared with the direct analysis (Figure 3I), only the peaks of 2′-deoxynucleosides were observed after the SPE treatment (Figure 3II), and the recoveries of these 2′-deoxynucleosides were all above 90%, which demonstrated that the SPE process caused little unspecific adsorption of the targets.
Furthermore, even though the concentration of ribonucleosides was one thousand times higher than that of 2′-deoxynucleosides (200 μg/mL for ribonucleosides and 0.2 μg/mL for 2′-deoxynucleosides), the
TiO2-based SPE can still efficiently capture ribonucleosides (Figure S3 in the Supporting Information).
In this regard, it could be concluded that the proposed TiO2-based SPE exhibited high affinity and specificity toward the normal ribonucleosides and 2′-deoxynucleosides can be efficiently recovered.
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