期刊
TALANTA
卷 255, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.talanta.2022.124224
关键词
Oligonucleotide; Adsorbent; Dispersive solid phase extraction; Amino and carboxyl groups; Charge change
This study aimed to extract unmodified and phosphor-othioate oligonucleotides using a material with amino and carboxylic moieties. The charge of the surface groups changed with pH, which allowed for the binding and elution of the oligonucleotides through electrostatic interactions. The method is simple, fast, reproducible, and environmentally friendly.
The study aimed to use a material with amino and carboxylic moieties to extract unmodified and phosphor-othioate oligonucleotides. The charge of amine and carboxyl groups at the surface has changed with the change in pH of the adsorption (pH 4.5) and desorption solution (pH 9.5). Thus, both the binding and elution of the oligonucleotides were based on electrostatic interactions, and the procedure required only 10 mM ammonium acetate, with the change of pH depending on the extraction step. The developed procedure was successfully applied to extract oligonucleotides from aqueous solutions and serum samples. The method is simple and fast, providing good reproducibility (SD between 1 and 4%) and relatively high oligonucleotide recovery (81-98% for standards, 60-71% for diluted serum samples, and 80-92 for LLE serum extracts). Moreover, only environ-mentally friendly solvents were used.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据