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This paper describes the motivation and realization of an electronic measuring unit destined for an electrochemical sensor. It's main purpose is to be used for residual pesticide detection in aliments. The sensor is based on the configuration with three electrodes, and is realized in thick film technology using specific silver and carbon conductive depositions, and was described in a previous work...
The assurance of a high level of safety regarding the food market has been one of the main concern issues of the European Commission. In this sense the affirmed documents name the pesticides as a major hazard factor. For these residuals the maximum quantity is strictly limited, especially for children. A sensor with detection capabilities in this sense will be presented. The actual sensor is a three...
The enthalpy and entropy changes of retention some lipid-soluble vitamins (A, D3 and E) have been estimated by means of the high performance liquid chromatography. Retention was studied using an octadecyl-silica modified stationary phase and different mobile phases containing methanol as the main organic solvent. For each vitamin the linear dependence of the logarithm of capacity factor on the reciprocal...
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