Automatic generation of photochemically induced excitation-emission-kinetic four-way data for the highly selective determination of azinphos-methyl in fruit juices

Abstract

Publicaciones científicas 1. High performance organized media-enhanced spectrofluorimetric determination of pirimiphos-methyl in maize. Milagros Montemurro, Romina Brasca,

Open-Source Assisted Laboratory Automation through Graphical User Interfaces and 3D Printers: Application to Equipment Hyphenation for Higher-Order Data Generation

“…Time profiles reveal the constant level of potential interferences (Thiabendazole-TBZ and Fuberidazole-FBZ), which are not susceptible to light irradiation, and the evolution of AZM through its reaction product. It is worthwhile mentioning that, as was previously stated, 13 AZM have weak native fluorescence.…”

“…The addition of NaOH, the stirring of the sample in the cuvette, the irradiation cycles and the fluorescence readings were all automated. In the reported work, 13 the operator had to address all timing concerns. In this work, the registration of the current time at different points of the sequence allowed us to calculate time dispersion for the same tasks, given different samples.…”

“…Here, the operator was responsible of synchronizing injection and collection starting, and of transporting plates from the collection platform to the plate reader. The second case refers to a Kinetics-EEM system, 13 in which EEM data were obtained by photoinduced degradation of an analyte in alkaline medium, collecting several EEM at different times of irradiation. The operator was in charge of the NaOH addition, as well as the starting and stopping both irradiation and registering cycles.…”

Stable Indium Pyridylcarboxylate Framework with Highly Selective Adsorption of Cationic Dyes and Effective Nitenpyram Detection

“…Rapid and reliable determination of trace pesticide compounds has become more and more important for public safety and health protection. At present, most pesticide detection technologies focus on chromatographic separation, which is time-consuming and tedious for sample pretreatment. , It is still a challenge to develop a simple and rapid pesticide detection technology. Herein we develop a new platform for the efficient recognition and determination of neonicotinoid pesticides in an ethanol solution via photoluminescence response of 1 .…”

Detection of Pesticides in Aqueous Medium and in Fruit Extracts Using a Three-Dimensional Metal–Organic Framework: Experimental and Computational Study

“…Detection of organophosphorus pesticides has been done using various methods such as liquid chromatography triple quadruple-tandem mass spectrometry, − gas chromatography–nitrogen phosphorus detection, , micellar electrokinetic chromatography, potentiometry, , capillary electrophoresis, − flow injection spectophotometric analysis, and cyclic voltametry with electrochemical liquid-phase microextraction. , Although these methods are very efficient with respect to sensitivity and limit of detection, they have some disadvantages like expensive, complicated sample preparation methods and requirement of longer time for analysis, complicated instrumentations and need for highly trained personnel, and also they have some portability issues during infield use. In the recent past, luminescence based detection methods have gained remarkable interest for their various beneficial characteristics such as efficient selectivity and sensitivity, portability, fast response time, and usefulness in both medium solution and solid state. − Luminescence based pesticide detections have already been explored with different types of materials such as polymer, − coordination compounds, − quantum dots, , and nanometarials. − However, these types of materials have some disadvantages such as complicated preparation processes, poor photostability, harmfulness toward the environment, and the absence of molecular organization. − …”