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Electrospray is a commonly used ionization method for the analysis of liquids. An electrospray is a dispersed nebular of charged droplets produced under the influence of a strong electrical field. Subsequently, ions are produced in a complex process initiated by evaporation of neutral solvent molecules from these droplets. We coupled an electrospray ionization source to our previously described high...
In this paper, we introduce a simple to manufacture, emission current controlled, miniaturized non-radioactive electron source to provide free electrons at atmospheric pressure. In atmospheric pressure chemical ionization as usually used in ion mobility spectrometry radioactive beta minus sources provide free electrons with high kinetic energy to initiate a chemical gas phase ionization of the analytes...
In atmospheric pressure chemical ionization as usually used in ion mobility spectrometry radioactive beta minus sources provide free electrons with high kinetic energy to initiate a chemical gas phase ionization of the analytes. In this paper we present a simple to manufacture miniaturized non-radioactive electron source to provide the free electrons at atmospheric pressure. Therefore, we generate...
Ion mobility spectrometry (IMS) is a widely used method for detecting low ppb-level concentrations of hazardous compounds, such as chemical warfare agents, explosives and pollutants in air. Simple instrumentation combined with high sensitivity and high selectivity are major advantages of this technique. This paper presents both a novel concept of a miniaturized IMS that is capable of identifying hazardous...
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