Research Center for Analytical Sciences, Department of Chemistry, College of Sciences , Northeastern University , Box 332, Shenyang , 110819 , China.
CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , Qingdao , 266101 , China.
Anal Chem. 2019 Jan 2;91(1):772-775. doi: 10.1021/acs.analchem.8b04884. Epub 2018 Dec 14.
Rapid detection of ultratrace pollutants in complex matrixes is a great challenge for studying their environmental behaviors and impacts. In this work, a method is developed by combining covalent organic framework (COF) based solid phase microextraction (SPME) with constant flow desorption ionization mass spectrometry for rapid detection of trace tetrabromobisphenol A (TBBPA) in multiple water media. The limits of detection and qualification are 0.92 and 3.1 ng L for TBBPA, respectively. The linear range is between 0.01 and 10 μg L ( R = 0.9992), and the relative standard deviations with single fiber and multiple fibers are 6.4% and 6.7% (0.1 μg L, n = 9), respectively. The detection of nanogram per liter levels of TBBPA in tap water, river water, seawater, and beverage can be achieved in 7 min.
快速检测复杂基质中的痕量污染物是研究其环境行为和影响的一大挑战。在这项工作中，我们开发了一种将共价有机框架（COF）基固相微萃取（SPME）与恒流解吸电离质谱相结合的方法，用于快速检测多种水介质中的痕量四溴双酚 A（TBBPA）。该方法对 TBBPA 的检出限和确证限分别为 0.92 和 3.1 ng L。TBBPA 的线性范围为 0.01 至 10 μg L（R = 0.9992），单纤维和多纤维的相对标准偏差分别为 6.4%和 6.7%（0.1 μg L，n = 9）。该方法可在 7 分钟内检测自来水中、河水中、海水中和饮料中的纳克每升水平的 TBBPA。
