Durmaz, FatihMemon, Fakhar N.Memon, ShahabuddinMemon, Ayaz A.Memon, Naeem A.Kara, Huseyin2020-03-262020-03-2620161944-39941944-3986https://dx.doi.org/10.1080/19443994.2015.1025436https://hdl.handle.net/20.500.12395/33404Present study deals with the sorption characteristics of p-tetranitrocalix[4]arene (3) appended silica-based high-performance liquid chromatographic (HPLC) column utilized for preconcentration, determination, and purification of Cu2+ from water. The sorption characteristics of the HPLC column were investigated for Cu2+ in column agreement. The experiments were performed in five steps that were monitored using UV-visible diode-array detector. However, all the HPLC experimental results were reconfirmed by using atomic absorption spectrophotometer. The effect of concentration on the sorption efficiency of the column was evaluated for Cu2+ and data obtained was investigated using Langmuir and Freundlich sorption isotherms. The value of coefficient of determination (R-2), i.e. 0.99, suggested that the Freundlich sorption isotherm was found to be the best fit model for Cu2+. The developed method was validated for system efficiency, accuracy, and precision, while the data obtained revealed that the developed column could be applied for the sorption of Cu2+ with adequate efficiency and repeatability.en10.1080/19443994.2015.1025436info:eu-repo/semantics/closedAccessHPLCAASCopperSorptionCalixareneArticle571989358941Q3WOS:000370065200007Q2