摘要:
A method of analysing a sample is disclosed that comprises surveying a sample in a first mode of operation by directing a spray of charged droplets onto the sample, determining one or more regions of interest in the sample, and analysing the one or more regions of interest in a second different mode of operation by directing a spray of charged droplets onto the sample. The spot size of the spray of charged droplets at a point of impact with the sample may be varied.
摘要:
A mass spectrometer and methods for controlling a mass spectrometer are provided. In an exemplary embodiment, the mass spectrometer includes a plurality of discrete functional modules, each operable to perform a predetermined function of the mass spectrometer, wherein the modules are individually addressable and connected in a network. The mass spectrometer can also include a scheduler operable to introduce discrete packets of instructions to the network at predetermined times to instruct at least one module to perform a predetermined operation.
摘要:
A method of ion imaging is disclosed comprising scanning a sample and acquiring first mass spectral data related to a first pixel location at a first spatial resolution and determining whether or not the first mass spectral data satisfies a condition. If it is determined that the first mass spectral data does satisfy the condition then the first mass spectral data is stored, recorded or prioritized. If it is determined that the first mass spectral data does not satisfy the condition then the first mass spectral data is discarded or downgraded. Scanning of the sample then continues at the first spatial resolution and further mass spectral data related to further pixel locations is acquired.
摘要:
Apparatus is disclosed comprising a first ion source (210) arranged and adapted to emit a spray of charged droplets (211) and a detector or sensor (203) arranged and adapted automatically to detect, sense or determine one or more first parameters or properties of the spray of charged droplets (211) as the spray of charged droplets (211) impacts upon a surface of the detector or sensor 203. The apparatus further comprises a control system (204) arranged and adapted to adjust, correct and/or optimise one or more second parameters or properties of the spray of charged droplets (211) based on the one or more first parameters or properties of the spray of charged droplets (211) detected, sensed or determined by the detector or sensor (203).
摘要:
A method of analysing a sample is disclosed that comprises surveying a sample in a first mode of operation by directing a spray of charged droplets onto the sample, determining one or more regions of interest in the sample, and analysing the one or more regions of interest in a second different mode of operation by directing a spray of charged droplets onto the sample. The spot size of the spray of charged droplets at a point of impact with the sample may be varied.
摘要:
Apparatus is disclosed comprising a first ion source (210) arranged and adapted to emit a spray of charged droplets (211) and a detector or sensor (203) arranged and adapted automatically to detect, sense or determine one or more first parameters or properties of the spray of charged droplets (211) as the spray of charged droplets (211) impacts upon a surface of the detector or sensor 203. The apparatus further comprises a control system (204) arranged and adapted to adjust, correct and/or optimise one or more second parameters or properties of the spray of charged droplets (211) based on the one or more first parameters or properties of the spray of charged droplets (211) detected, sensed or determined by the detector or sensor (203).
摘要:
A method of ion imaging is disclosed comprising scanning a sample and acquiring first mass spectral data related to a first pixel location at a first spatial resolution and determining whether or not the first mass spectral data satisfies a condition. If it is determined that the first mass spectral data does satisfy the condition then the first mass spectral data is stored, recorded or prioritized. If it is determined that the first mass spectral data does not satisfy the condition then the first mass spectral data is discarded or downgraded. Scanning of the sample then continues at the first spatial resolution and further mass spectral data related to further pixel locations is acquired.
摘要:
A method of ion imaging is disclosed comprising scanning a sample at a first resolution and acquiring first mass spectral data related to a first pixel location. A determination is then made as to whether or not the first mass spectral data satisfies a condition, wherein if it is determined that the first mass spectral data does satisfy the condition then the method further comprises: (i) switching to acquire second mass spectral data related to a second pixel location which is substantially adjacent to the first pixel location so that the second mass spectral data is acquired at a second resolution which is higher than the first resolution; and (ii) determining whether or not the second mass spectral data satisfies the condition, wherein if it is determined that the second mass spectral data does satisfy the condition then the method further comprises acquiring third mass spectral data related to a third pixel location which is substantially adjacent to the first or second pixel locations so that the third mass spectral is acquired at the second resolution and wherein if it is determined that the second or third mass spectral data does not satisfy the condition then the method further comprises switching back to scanning the sample at the first resolution.
摘要:
A mass spectrometer and methods for controlling a mass spectrometer are provided. In an exemplary embodiment, the mass spectrometer includes a plurality of discrete functional modules, each operable to perform a predetermined function of the mass spectrometer, wherein the modules are individually addressable and connected in a network. The mass spectrometer can also include a scheduler operable to introduce discrete packets of instructions to the network at predetermined times to instruct at least one module to perform a predetermined operation.
摘要:
Disclosed herein is a method of analysing a tissue sample. The method comprises identifying one or more regions of interest within the tissue sample based on a tissue stain that has been applied to the tissue sample. Analyte material is then generated from the one or more regions of interest identified based on the tissue stain using a direct surface sampling probe (10), which analyte material is then received at a sampling inlet (30) and passed towards a mass and/or ion mobility spectrometer (50) for analysis.