@article{hashemi_shamsipur_barati_2015,  title={Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Drop with Central Composite Design for the Determination of Nitrophenols Using High-Performance Liquid Chromatography},  volume={26},  ISSN={0103-5053},  url={https://doi.org/10.5935/0103-5053.20150185},  DOI={10.5935/0103-5053.20150185},  number={10},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Hashemi, Beshare and Shamsipur, Mojtaba and Barati, Ali},  year={2015},  month={Oct},  pages={2046–2053} }