Mass spectrometer and method for enhancing resolution of mass spectra
AssigneeAgilent Technologies, Inc.
InventorsJohn Christian Fjeldsted, August Jon Hidalgo, William Daniel Frazer
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Abstract
A mass spectrometer comprises an ion detector, an analog-to-digital (A/D) converter, a sample adjuster, and an adder. The A/D converter is configured to receive and sample an analog signal from the ion detector thereby providing a plurality of samples. The adder is configured to sum the samples, and the summed samples define a mass spectrum. The sample adjuster is configured to identify a peak defined by the samples and to suppress at least one of the samples of the peak such that a resolution of a peak within the mass spectrum is enhanced.
Claims20
A mass spectrometer, comprising:
- an ion detector;
- an analog-to-digital (A/D) convener configured to receive and sample an analog signal from the ion detector thereby providing a plurality of samples;
- a sample adjuster configured to:
- identify a peak defined by the samples;
- identify to remain unsuppressed at least one of said samples defining said identified peak;
- and
- suppress at least one of said samples defining said peak except for at least one of said identified at least one of said samples;
- and
- an adder configured to sum the samples, wherein the summed samples define a mass spectrum and include a result of summing the at least one sample adjusted by the sample adjuster with a running sum of other ones of the samples.
A mass spectrometer, comprising:
- an ion detector;
- an analog-to-digital (A/D) convener configured to receive and sample an analog signal from the ion detector thereby providing a plurality of samples;
- an adder configured to sum the samples, wherein the summed samples define a mass spectrum;
- and a sample adjuster configured to:
- identify a peak defined by the samples;
- identify to remain unsuppressed at least one of said samples defining said identified peak;
- and
- suppress at least one of said samples defining said peak except for at least one of said identified at least one of said samples such that a resolution of a peak within the mass spectrum is enhanced.
A method for generating mass spectra, comprising:
- detecting ions;
- transmitting an analog signal indicative of the detecting;
- sampling the analog signal thereby providing a plurality of samples;
- identifying a peak defined by the samples;
- identifying to remain unsuppressed at least one of said samples defining said identified peak;
- summing the samples thereby defining a mass spectrum;
- and
- suppressing at least one of said samples defining said peak except for at least one of said identified at least one of said samples such that a resolution of the mass spectrum is enhanced.
A method for generating mass spectra, comprising:
- detecting ions;
- transmitting an analog signal indicative of the detecting;
- sampling the analog signal thereby providing a plurality of samples;
- identifying a peak defined by the samples;
- summing the samples thereby defining a mass spectrum;
- identifying to remain unsuppressed at least one of said samples defining said identified peak;
- and
- and enhancing a resolution of a peak of the mass spectrum, wherein the enhancing comprises preventing, based on the identifying, at least one of the samples defining the identified peak from affecting the mass spectrum by suppressing at least one of said samples defining said peak except for at least one of said identified at least one of said samples.
Dependencies are inferred from the claim text.