An electrospray apparatus and a method of operating the electrospray apparatus can include an array of emitters that can emit a fog of charged droplets, wherein the charged droplets can be produced in a carrier gas by the array of emitters and directed into a development zone of a charge image. Each emitter among the array of emitters can be implemented as a cone-shaped emitter. The array of emitters can be implemented as a cone jet electrospray micro-array that can produce a high liquid concentration of the charged droplets in the carrier gas. The charged droplets can comprise charged fountain solution droplets, and the charge image can be a fountain solution image that can be transferrable to a blanket for control and subsequent ink transfer to a receiving medium.

A nebuliser outlet comprises an inlet end and an outlet end, a first channel and one or more second channels arranged between the inlet end and the outlet end. The first channel is configured to receive a capillary, and the one or more second channels are configured to pass gas to the outlet end. The nebuliser outlet is a single integrated component.

The invention relates to the generation of desolvated ions by electrospraying to be investigated analytically, e.g. according to the charge-related mass m/z and/or ion mobility. The cloud of highly charged. droplets drawn from the spray capillary by a high voltage is usually focused and stabilized by a beam of nebulizing gas surrounding the cloud of tiny droplets. For a fast drying of the droplets, an additional desolvation gas is usually heated to a temperature of up to several hundred degrees centigrade and blown into the cloud of droplets. The invention particularly relates to the heating of the gas which is instrumental in the generation of desolvated ions as part of the electrospraying process without any mechanical or electrical contact between the heating power supply and the heater itself, but rather by heating the heater for the gas using electromagnetic induction.

Disclosed herein are methods and systems for ionizing organic compounds by exposing head space vapors to corona discharge. The methods and systems are suitable for high throughput screening of samples, including biofluids. The methods and systems are suitable for rapid evaluation of chemical reactions, permitting discovery of novel organic reaction pathways.

Each of one or more unknown compounds are separated from a sample over a separation time period. Separated compounds are ionized, producing one or more compound precursor ions for each of the unknown compounds and a plurality of background precursor ions. A precursor ion mass spectrum is measured for the combined compound and background precursor ions at each time step of a plurality of time steps spread across the separation time period, producing a plurality of precursor ion mass spectra. One or more background precursor ions are selected from the plurality of precursor ion mass spectra that have a resolving power in a range below a threshold expected resolving power. A separation time is detected for an unknown compound when a decrease in an intensity measurement of the selected background precursor ions over a time period exceeds a threshold decrease in intensity with respect to time.

A packaging for a needle-like component of a mass spectrometry (MS) system is provided. The packaging includes a receptacle configured for storing the needle-like component in a secured position inside the receptacle. The packaging further comprises an actuator configured to move the needle-like component from the secured position inside the receptacle to a mounting position in which the needle-like component projects out of the receptacle for mounting the needle-like component to the MS system.

A mass spectrometry system having a simplified control interface includes a processor and a memory. The memory includes instructions that when executed cause the processor to perform the steps of providing a user interface including a plurality of adjustment elements for adjusting at least one results effective parameter and at least one sample descriptive parameter; determining a plurality of instrument control parameters based on the at least one results effective parameter and the at least one sample descriptive parameter; and analyzing a sample while operating according to the plurality of instrument control parameters.

A mass spectrometry (MS) apparatus is provided. The MS apparatus includes a mass spectrometer, an ionization source coupled to the mass spectrometer, and a flow injection system (FIS) coupled to the ionization source. The ionization source is configured to provide an ionized gas flow of an analyte towards an entrance of the mass spectrometer. The ionization source is further configured to provide a second gas flow of a second gas. The MS apparatus is configured to measure a mass spectrometer (MS) signal of the analyte. The MS apparatus is further configured to analyze a dependency of the MS signal of the analyte versus a parameter of the second gas flow or a state of the second gas flow and to determine a condition of the apparatus based on the analyzed dependency.

Apparatus, systems, and methods in accordance with various aspects of the applicant's teachings provide for improved interfaces for providing a sample flow from a sample conduit (e.g., an analytical conduit or capillary), including those used in sample separation techniques such as CE and HPLC, to an ESI source for ionization thereby.

A spray-capillary device is configured to process ultra low-volume samples. The spray-capillary device includes a spray capillary that includes an inlet end and a discharge end. The spray capillary includes a porous section at the discharge end. A downstream connector provides an interface between the porous section of the spray capillary, a conductive fluid, and a high voltage electrical source. The application of voltage to the downstream connector causes electrospray ionization, which can be used to draw ultra law volume samples into the inlet end. A gas injection assembly can be used to increase the pressure on the inlet end of the spray capillary to encourage movement of the sample through the spray capillary. The spray-capillary device is well suited for providing ultra low samples to a mass spectrometer detection device.