Combination of zeolitic imidazolate framework-67 and magnetic porous porphyrin organic polymer for preconcentration of neonicotinoid insecticides in river water

Evaluation of organo-vermiculites as sorbent phases for solid-phase extraction of ibuprofen from water

“…37–42 To evaluate the REF, the ratio of the slopes was used between the calibration curves after and before the preconcentration step. 29,40,43–46…”

“…[37][38][39][40][41][42] To evaluate the REF, the ratio of the slopes was used between the calibration curves aer and before the preconcentration step. 29,40,[43][44][45][46] Then, calibration curves were obtained in triplicate, using all the steps of sorption and desorption for concentrations between 20.0 and 300 mg L −1 , and compared to the calibration curve without preconcentration steps (in the absence of OVT), and the results are presented in Table 3. LOD and LOQ were calculated using the expressions LOD = 3s/S and LOQ = 10s/S, where s and S denote the standard deviation of the blank test and the slope of the calibration curves, respectively.…”

Hybrid porous polymers based on double‐decker and cage‐ype silsesquioxanes for the high‐efficiency removal of neonicotinoid insecticides and dyes

“…42,43 Recently, more research has focused on water and soil pollution by neonicotinoid insecticides, and the population directly exposed to them through diet and drinking water, and human health is seriously threatened, so it is crucial to find scientific and effective methods to remove such pollutants. 44,45 PCS-ODs with huge specific surface area and pore volume should be selected as ideal adsorbents for removing neonicotinoid insecticide pollutants including neonicotinoids imidacloprid (IMI), acetamiprid (ACE) and thiamethoxam (THI), the most widely used neonicotinoid insecticides in the world. [46][47][48] Figure 4 illustrates the equilibrium adsorption isotherms of PCS-OD 2 and PCS-OD 3 for the three neonicotinoid insecticides.…”

Metal-porphyrinic framework nanotechnologies in modern agricultural management

“…Table 4 lists a series of investigations, some of which are described below. 101,102,117,[120][121][122][123][124] Qi and coworkers have prepared water stable and porous 2Dmetal-porphyrinic nanosheets to adsorb chlorantraniliprole from water. 122 These nanosized hydrophilic (contact angle = 39.81) and porous materials were prepared through a solvothermal method resulting in 2D-sheets of plates of several hundred nanometer size (SEM and TEM) and B17 nm thickness (AFM) built upon 3D-architectures.…”

“…Another possible application is the design of composites for the detection of pesticides in river water in conjunction with the combination of one MOF with the porphyrin base of a magnetic COF. 102 Another case used immunochromatographic assays for the detection of imidacloprid in food samples by porphyrin-based MOFs. 103…”