Velasco Edouard, Ríos-Acevedo Jhon Jairo, Sarria-Villa Rodrigo, Rosero-Moreano Milton
Grupo de Investigación GIEMA, Departamento de Química, Facultad de Ciencias Básicas, Universidad Santiago de Cali, Calle 5 # 62-00, Cali, Colombia.
Grupo de Investigación GIQA, Departamento de Química, Facultad de Ciencias Naturales, Exactas y de la Educación, Universidad del Cauca, Calle 5 # 4-70, Popayán, Colombia.
Heliyon. 2021 Aug 25;7(9):e07878. doi: 10.1016/j.heliyon.2021.e07878. eCollection 2021 Sep.
The following work presents the development of the solid phase extraction technique with rotary disk (RDSE) in which the analysis for seven triazines in surface waters was first implemented. All the variables involved in extraction have been studied and optimized using a solid phase of octadecyl (C18) deposited on surface of the disk. Triazines were analyzed quantitatively by gas chromatography with simple quadruple mass detector, recoveries obtained for seven triazines were between 80% and 120%, accuracy expressed as RSD was between 3.21% and 6.34%, and detection limit of the method was between 0.020-0.056 μgL according to each analyte, which indicates a good reproducibility and precision of the method. Finally, the method was applied to analyze the objective compounds in water samples obtained in the Bolo River (Palmira-Colombia), in which triazines were not detected.
以下工作介绍了旋转盘固相萃取技术（RDSE）的发展，该技术首次用于地表水七种三嗪类化合物的分析。利用沉积在盘表面的十八烷基（C18）固相，对萃取过程中涉及的所有变量进行了研究和优化。采用配有单四极杆质谱检测器的气相色谱法定量分析三嗪类化合物，七种三嗪类化合物的回收率在80%至120%之间，以相对标准偏差（RSD）表示的精密度在3.21%至6.34%之间，根据每种分析物，该方法的检测限在0.020 - 0.056 μg/L之间，这表明该方法具有良好的重现性和精密度。最后，该方法应用于分析取自波洛河（帕尔米拉 - 哥伦比亚）水样中的目标化合物，其中未检测到三嗪类化合物。
