An isotope ratio mass spectrometer has an ion source, a static field mass filter, a reaction cell to induce a mass shift reaction, and a sector field mass analyser for spatially separating ions from the reaction cell according to their m/z. A detector platform detects a plurality of different ion species separated by the sector field mass analyser. The static field mass filter has a first Wien filter that deflects ions away from a longitudinal symmetry axis of the spectrometer in accordance with the ions' m/z, and a second Wien filter that deflects ions back towards the longitudinal symmetry axis in accordance with the ions' m/z. An inverting lens is positioned along the longitudinal axis between the Wien filters to invert the direction of deflection of the ions from the first Wien filter. The static field mass filter provides high transmission and improved spectrometer sensitivity. The first and second Wien filters permit simple tuning.

A point-of-care diagnostic system that includes a cartridge and a reader. The cartridge can contain a patient sample, such as a blood sample. The cartridge is inserted into the reader and the patient sample is analyzed. The reader contains various analysis systems, such as an electrophoresis detection system that uses electrophoresis testing to identify and quantify various components of the blood sample. The reader can process data from the various patient sample analysis to provide interpretative results indicative of a disorder, condition, disease and/or infection of the patient.

Techniques described herein can apply AC signals with different phases to different groups of nanopore cells in a nanopore sensor chip. When a first group of nanopore cells is in a dark period and is not sampled or minimally sampled by an analog-to-digital converter (ADC) to capture useful data, a second group of nanopore cells is in a bright period during which output signals from the second group of nanopore cells are sampled by the analog-to-digital converter. The reference level setting of the ADC is dynamically changed based on the applied AC signals to fully utilize the dynamic range of the ADC.

The present disclosure generally relates to devices and methods for effecting epitachophoresis in order to isolate/purify analytes from urine samples or other samples comprising high salt concentrations, e.g., sodium or potassium salts. Epitachophoresis may be used to effect sample analysis, such as by selective separation, detection, extraction, and/or pre-concentration of target analytes such as, for example, DNA, RNA, and/or other biological molecules. Said target analytes may be collected following epitachophoresis and used for desired downstream applications and further analysis.

The present disclosure provides devices and systems for gel electrophoresis and/or electrotransfer and/or detection of biomolecules. Devices for electrotransfer comprise: one or more receptacles comprising: a biomolecule receiving material (BMR); a first and second electrode; wherein the second electrode is located after and/or distal to an area where biomolecules are received OR wherein both electrodes are arranged to allow current flow in at least two directions, wherein the second direction of current flow is along the plane of the BMR. Devices and systems can be adapted to perform electrophoresis, wherein the receptacle further comprises a matrix for electrophoretic separation of biomolecules. Devices and systems can be further adapted to perform detection, wherein the receptacle further comprises reagent dispensing channels or ports and/or reagents to detect electrotransferred biomolecules. Devices and systems of the disclosure can be microfluidic devices. Methods using the systems and devices of the disclosure are also provided.

The present disclosure relates to fluidic systems and devices for processing, extracting, or purifying one or more analytes. These systems and devices can be used for processing samples and extracting nucleic acids, for example by isotachophoresis. In particular, the systems and related methods can allow for extraction of nucleic acids, including non-crosslinked nucleic acids, from samples such as tissue or cells. The systems and devices can also be used for multiplex parallel sample processing.

A biological analysis device for performing capillary electrophoresis includes a voltage section configured to generate a voltage differential across a cathode connector and an anode connector, an optical detector system configured to detect light emission from a sample, a temperature regulation section, and a cartridge holding portion configured to receive at least a portion of a removable cartridge comprising one or more capillaries and a separation medium container. The biological analysis device may include one or more actuators configured to actuate components of the removable cartridge when the removable cartridge is received in the cartridge holding portion. Devices and methods relate to biological analysis.

An isotope ratio mass spectrometer has an ion source, a static field mass filter, a reaction cell to induce a mass shift reaction, and a sector field mass analyser for spatially separating ions from the reaction cell according to their m/z. A detector platform detects a plurality of different ion species separated by the sector field mass analyser. The static field mass filter has a first Wien filter that deflects ions away from a longitudinal symmetry axis of the spectrometer in accordance with the ions' m/z, and a second Wien filter that deflects ions back towards the longitudinal symmetry axis in accordance with the ions' m/z. An inverting lens is positioned along the longitudinal axis between the Wien filters to invert the direction of deflection of the ions from the first Wien filter. The static field mass filter provides high transmission and improved spectrometer sensitivity. The first and second Wien filters permit simple tuning.

A method of filtering ions according to their ion mobility using a device is disclosed, the method comprising a plurality of electrodes and one or more voltage source(s) arranged and adapted to apply voltages to the plurality of electrodes, the method comprising, generating using the one or more voltage source(s) one or more local separation region(s), wherein ions can be separated within each local separation region according to their ion mobility, and moving each local separation region axially along the device with a certain velocity such that, for each local separation region, ions having a value of their ion mobility falling within a selected range are transmitted axially along the device with that local separation region whereas ions having higher and/or lower ion mobility falling outside that range escape the local separation region, wherein any ions that escape the local separation region(s) are removed from within the device and/or otherwise kept apart from those ions falling within the selected range(s).

An electrophoretic separation data analyzing apparatus includes an analysis target peak identifying part configured to require a user to input analysis target peak information on analysis target peaks to be added to an analysis target in separation data obtained by electrophoretic separation, and to identify at least one of the analysis target peaks based on the analysis target peak information, a peak-of-interest identifying part configured to require the user to input peak-of-interest information on a peak of interest among the analysis target peaks, and identify the peak of interest based on the peak-of-interest information, and an abundance ratio calculating part configured to determine an abundance ratio of the peak of interest among all of the analysis target peaks based on a total value of peak areas of the analysis target peaks and a peak area value of the peak of interest.