Silk fiber for in-tube solid-phase microextraction to detect aldehydes by chemical derivatization
Silk fiber for in-tube solid-phase microextraction to detect aldehydes by chemical derivatization
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用于管内固相微萃取化学衍生化检测醛类的丝纤维
DOI：
10.1016/j.chroma.2017.09.058
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发表时间：
2017
影响因子：
4.1
通讯作者：
Sun Min
中科院分区：
文献类型：
--
作者：
Wang Xiuqin;Pan Lei;Feng Juanjuan;Tian Yu;Luo Chuannan;Sun Min
醛类是环境中具有潜在破坏性的污染物，但由于浓度水平较低而难以测定。因此，为了准确分析醛类，选择性富集和快速分离的高效样品制备非常重要。直接应用环保蚕丝纤维作为吸附材料，开发了管内固相微萃取结合高效液相色谱分析水样。 2,4-二硝基苯肼作为衍生试剂，在萃取前对醛进行化学衍生。在最佳条件下，建立了在线分析方法，检测限为0.005~0.01 μg L−1，线性范围为0.03~10 μg L−1。在两个实际样品中测定了三种醛，相对回收率在 95-102% 范围内。
Aldehydes are the potentially damaging pollutants in the environment, but it is difficult to be determined due to the low concentration level. Therefore, to accurate analysis of aldehydes, it is important for efficient sample preparation with selective enrichment and rapid separation. Environmentally friendly silk fiber as adsorbent material was directly applied to develop in-tube solid-phase microextraction for analyzing aqueous samples combined with high performance liquid chromatography. 2,4-Dinitrophenylhydrazine as a derivative reagent was used for chemical derivatization of aldehydes before extraction. Under optimum conditions, an online analysis method was built with the limits of detection in the range of 0.005–0.01 μg L−1and the linearity in the range of 0.03–10 μg L−1. Three aldehydes were determined in two real samples, and the relative recoveries were in the range of 95–102%.