Abstract:
The present invention provides a method of coating an electrospray emitter with silver and then gold utilizing wet-coating processes. First, the electrospray emitter is immersed in a silver-containing liquid solution to coat the electrospray emitter in a layer of silver. Next, the silver-coated electrospray emitter is removed from the silver solution and rinsed with water. The silver-coated electrospray emitter is then annealed to stabilize the silver layer. Once the silver layer has been stabilized, the silver-coated electrospray emitter is immersed into a gold-containing liquid solution and a voltage is applied. This voltage serves to electrochemically deposit a gold layer onto the silver layer. The gold- and silver-coated electrospray emitter is then removed from the gold-containing liquid solution and rinsed with water and, preferably, with nitric acid.
Abstract:
By connecting the Bradbury-Nielson gate (BNG) directly to a driver without a transmission line, distortion of the voltage waveform experienced a the BNG are much reduced. Because the magnitude of the modulation defects grows as the applied modulation voltage is increased, Bradbury-Nielson gates with finer wire spacing such as 100 microns, and operating at 10 to 15 V, significantly better signal-to-noise ratios are achieved. HT-TOFMS data were also post processed using an exact knowledge of the modulation defects.
Abstract:
The present invention provides a method of coating an electrospray emitter with silver and then gold utilizing wet-coating processes. First, the electrospray emitter is immersed in a silver-containing liquid solution to coat the electrospray emitter in a layer of silver. Next, the silver-coated electrospray emitter is removed from the silver solution and rinsed with water. The silver-coated electrospray emitter is then annealed to stabilize the silver layer. Once the silver layer has been stabilized, the silver-coated electrospray emitter is immersed into a gold-containing liquid solution and a voltage is applied. This voltage serves to electrochemically deposit a gold layer onto the silver layer. The gold- and silver-coated electrospray emitter is then removed from the gold-containing liquid solution and rinsed with water and, preferably, with nitric acid.
Abstract:
By connecting the Bradbury-Nielson gate (BNG) directly to a driver without a transmission line, distortion of the voltage waveform experienced a the BNG are much reduced. Because the magnitude of the modulation defects grows as the applied modulation voltage is increased, Bradbury-Nielson gates with finer wire spacing such as 100 microns, and operating at 10 to 15 V, significantly better signal-to-noise ratios are achieved. HT-TOFMS data were also post processed using an exact knowledge of the modulation defects.
Abstract:
By connecting the Bradbury-Nielson gate (BNG) directly to a driver without a transmission line, distortion of the voltage waveform experienced a the BNG are much reduced. Because the magnitude of the modulation defects grows as the applied modulation voltage is increased, Bradbury-Nielson gates with finer wire spacing such as 100 microns, and operating at 10 to 15 V, significantly better signal-to-noise ratios are achieved. HT-TOFMS data were also post processed using an exact knowledge of the modulation defects.
Abstract:
The invention relates to a method for substance mixtures, particularly complex chemical and/or biochemical substance mixtures. According to said method, a substance mixture that is to be analyzed is fed to a separating device, the substances of the substance mixture that is to be analyzed are separated from each other in the separating device by means of a chemically and/or physically induced conveying process, and the separated substances are detected in an evaluation unit. The invention further relates to methods and devices for producing pulsed substance mixtures, particularly complex chemical and/or biochemical substance mixtures. In order to improve the analysis of substance mixtures especially regarding the duration of the analysis, the throughput, and the resolution, the substance mixture that is to be analyzed is fed to the separating device in pulses having an unique binary sequence.
Abstract:
The invention relates to a method for substance mixtures, particularly complex chemical and/or biochemical substance mixtures. According to said method, a substance mixture that is to be analyzed is fed to a separating device, the substances of the substance mixture that is to be analyzed are separated from each other in the separating device by means of a chemically and/or physically induced conveying process, and the separated substances are detected in an evaluation unit. The invention further relates to methods and devices for producing pulsed substance mixtures, particularly complex chemical and/or biochemical substance mixtures. In order to improve the analysis of substance mixtures especially regarding the duration of the analysis, the throughput, and the resolution, the substance mixture that is to be analyzed is fed to the separating device in pulses having an unique binary sequence.