In this study, development of a needle trap device (NTD) packed with UiO-66 adsorbent was used for the sampling of the aromatic amine compounds (including aniline, N,N-dimethylaniline and o-toluidine) followed by gas chromatography (GC) with flame-ionization detector (FID) analysis. The UiO-66 sorbent was synthesized and then packed inside a spinal needle (Gauge 22). The synthesized sorbent was characterized with the XRD, FE-SEM, EDS and FT-IR techniques. This study was conducted both in the laboratory and in the real samples. In the laboratory, the sampling parameters (such as temperature and humidity) and desorption parameters (including desorption temperature and desorption time) were optimized using Response Surface Methodology (RSM) by Central Composite Design (CCD). The results indicated that the performance of the sampling device decreased with increasing the sampling humidity and temperature. Moreover, the highest peak area responses of the studied analytes were observed at a desorption time of 3 minutes and desorption temperature of 270 °C. The values of the limit of detection (LOD) and limit of quantitation (LOQ) were in the range 0.01–0.02 and 0.03–0.05 ng mL⁻¹, respectively. Our findings demonstrated that NTD packed with synthesized UiO-66 has good repeatability (RSD = 1.3–6.8%) and acceptable reproducibility (with three NTDs) (RSD = 1.3–9.7%). Comparison of the results between NTD-UiO-66 and NIOSH2002 showed a sufficient correlation (0.98–0.99) between two methods. Therefore, the results indicated that the NTD packed with the UiO-66 adsorbent can be used as a powerful technique for occupational and environmental monitoring.

中文翻译：

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锆基金属有机骨架吸附剂针捕装置高效萃取空气中的芳香胺

在本研究中，开发了装有 UiO-66 吸附剂的针捕装置 (NTD)，用于对芳香胺化合物（包括苯胺、N,N-二甲基苯胺和邻甲苯胺）进行采样，然后进行气相色谱( GC )分析。火焰离子化检测器 (FID) 分析。合成 UiO-66 吸附剂，然后装入脊椎针（规格 22）内。采用 XRD、FE-SEM、EDS 和 FT-IR 技术对合成的吸附剂进行了表征。这项研究是在实验室和真实样品中进行的。在实验室中，采用中央复合设计（CCD）的响应面法（RSM）对采样参数（如温度和湿度）和解吸参数（包括解吸温度和解吸时间）进行优化。结果表明，随着采样湿度和温度的增加，采样装置的性能下降。此外，在解吸时间为 3 分钟、解吸温度为 270 °C 时观察到所研究分析物的最高峰面积响应。检测限（LOD）和定量限（LOQ）的值分别在0.01-0.02和0.03-0.05 ng mL ^-1范围内。我们的研究结果表明，填充有合成 UiO-66 的 NTD 具有良好的重复性 (RSD = 1.3–6.8%) 和可接受的重现性（使用三个 NTD）(RSD = 1.3–9.7%)。NTD-UiO-66 和 NIOSH2002 之间的结果比较显示两种方法之间有足够的相关性 (0.98–0.99)。因此，结果表明，填充 UiO-66 吸附剂的 NTD 可用作职业和环境监测的强大技术。