In this work a simple dispersive solid phase microextraction based on Co₃O₄ modified nanoclinoptilolite was developed for the preconcentration and fast determination of malachite green in the environmental samples. In the first step a rapid mass transfer of dye to the surface of the sorbent was accrued and therefore, the extraction process was performed in a short time. In the second step the dye was desorbed on the methanol solvent. Some factors that have effect on the microextraction performance such as the type and volume of solvent, dose of Co₃O₄ modified nanoclinoptilolite, salinity and pH were optimized. Under these conditions enrichment factor was obtained 154-fold for the malachite green. Also the limit of detection was in the range of 5 µg/ml. Under optimal conditions this method was successfully applied for determination of malachite green in various water samples.

中文翻译：

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基于Co 3 O 4修饰的纳米斜发沸石的分散微固相萃取快速测定环境水样中的孔雀石绿

在这项工作中，开发了一种基于Co ₃ O ₄改性的纳米斜发沸石的简单分散固相微萃取技术，用于环境样品中的孔雀石绿的预富集和快速测定。第一步是将染料快速传质到吸附剂表面，因此，萃取过程要在很短的时间内完成。在第二步中，将染料解吸在甲醇溶剂上。影响微萃取性能的一些因素，例如溶剂的类型和体积，Co ₃ O _4的剂量优化了改性的纳米斜发沸石，盐度和pH。在这些条件下，孔雀石绿的富集系数为154倍。检测限也在5μg/ ml的范围内。在最佳条件下，该方法成功地用于测定各种水样中的孔雀石绿。