In the design of highly ordered (covalent organic frameworks) COFs with “ordered domains size and orientation” construction in a well-defined arrangement, the molecular monomers are the key factors. Here, the effect of molecular monomers on the construction of COFs has been studied, and two kinds of molecular monomers, i.e., ethanediamine (flexible amine ligand) and 4,4′-diaminobiphenyl (rigid amine ligand) have been used for developing sheet-like COFs-I and sheet-like COFs-II, respectively. Furthermore, they have been evaluated in the dispersive solid phase extraction (dSPE) procedure for textiles prior to the analysis of alkylphenol by liquid chromatography-tandem quadrupole mass spectrometry (LC-MS/MS). The results showed that, the optimal usage amount of sheet-like COFs-II used in the dSPE procedure was less than that of sheet-like COFs-I, which may be explained by much higher adsorption capacity of sheet-like COFs via hydrogen-bonding and π-π stacking interactions. Rectilinear calibration graphs were obtained for 4-(tert-octyl)-phenol (4-tOP) and 4-nonylphenol (4-NP) in the range 0.2-20 µg/kg with determination coefficient (r²) higher than 0.9990, and the limits of detection (LODs) of 4-tOP and 4-NP were 0.039 µg/kg and 0.048 µg/kg, respectively. The developed method has been successfully applied to analysis of 50 textile samples, in which 4-tOP and 4-NP were found in six samples with concentrations in the range of 1.6 μg/kg-20.9 μg/kg.

在设计具有良好定义的“有序域大小和方向”结构的高度有序（共价有机框架）COF时，分子单体是关键因素。在这里，研究了分子单体对COFs的构造的影响，并且有两种分子单体，即分别使用乙二胺（柔性胺配体）和4,4'-二氨基联苯（刚性胺配体）来开发片状COFs-I和片状COFs-II。此外，在通过液相色谱-串联四极杆质谱（LC-MS / MS）分析烷基苯酚之前，已经在纺织品的分散固相萃取（dSPE）程序中对它们进行了评估。结果表明，在dSPE程序中使用的片状COFs-II的最佳用量少于片状COFs-I的用量，这可以用片状COFs通过氢键和π-π堆积相互作用。获得了4-（叔辛基）-苯酚（4-tOP）和4-壬基苯酚（4-NP）在0.2-20 µg / kg范围内的线性校正图，测定系数（r ²）高于0.9990，并且4-tOP和4-NP的检出限（LOD）分别为0.039 µg / kg和0.048 µg / kg。所开发的方法已成功应用于50个纺织品样品的分析，其中六个样品中的4-tOP和4-NP浓度范围为1.6μg/ kg-20.9μg/ kg。