Sample pretreatment is a critical and essential step in almost all analytical procedures, especially for the analysis of biological and environmental samples with complex matrices. Dopamine molecules can easily self-polymerize under weak alkaline conditions, leading to a facile deposition of polydopamine (PDA) coatings on various surfaces. Since 2011, PDA chemistry has undergone significant expansion in its applications and is becoming one of the most attractive areas within the materials field. Here, recent advancements in the use of PDA-derived adsorbents for sample pretreatment were reviewed, with especial focus on surface modification strategies, extraction modes, and application fields. In addition, prospects of PDA-derived adsorbents for sample pretreatment are also proposed.

在几乎所有分析程序中，样品预处理都是至关重要的步骤，特别是对于分析具有复杂基质的生物和环境样品而言。在弱碱性条件下，多巴胺分子很容易自聚合，从而导致聚多巴胺（PDA）涂层易于在各种表面上沉积。自2011年以来，PDA化学已在其应用中得到了显着扩展，并已成为材料领域中最有吸引力的领域之一。在此，对使用PDA吸附剂进行样品预处理的最新进展进行了综述，其中特别关注表面改性策略，提取模式和应用领域。另外，还提出了PDA衍生的吸附剂用于样品预处理的前景。