摘要:
Exemplary embodiments provide methods, mediums, and systems for visualization and advanced data science on information collected in an analytical data system. Embodiments identify correlations and patterns in chromatography metadata around areas of potential user error. Correlations between these data sources may point to compliance risk areas. Metadata from the analytical system may be combined with other data sources and/or analytical data to correlate an analytical outcome with compliance artifacts. Supervised and/or unsupervised machine learning techniques may be used to combine these data source and learn correlations between them and compliance risks. The results of these analyses may be displayed on a dashboard, allowing a user to visualize compliance risks across an entire enterprise or supply chain. Automatic notifications of compliance risks may be generated and presented on a user interface. A system may also use pattern recognition to provide insights around potential compliance risks that have not yet occurred.
摘要:
There is provided a method of analysis of mass spectrometry data comprising obtaining raw experimental mass spectrometry data; performing a first deconvolution of the raw experimental mass spectrometry data using a deconvolution algorithm, a wide first input parameter set, and a wide first output parameter set to obtain a deconvolved output; obtaining discrete peak data from the deconvolved output; simulating raw data for a first peak of the discrete peak data to obtain reference simulated raw discrete data; simulating raw data for a second peak of the discrete peak data to obtain suspect simulated raw discrete data; and determining whether the second peak is likely an artefact or indicative of a mass by comparing the suspect simulated raw discrete data with the reference simulated raw discrete data.
摘要:
A mass spectrometer including chromatogram creation means for creating a chromatogram showing changes over time in an ion intensity within a predetermined mass range based on the MS analysis results, and timing determination means for determining a timing to perform MS/MS analysis based on the chromatogram. The timing determination means determines, as a timing to perform MS/MS analysis, a point in time at which a signal intensity in the chromatogram reaches a predetermined upper limit after exceeding a predetermined lower limit or a point in time at which a signal intensity in the chromatogram reaches a top of a peak without reaching the upper limit after exceeding the lower limit. It is thus possible to collect precursor ions at a timing at which the signal intensity of a peak originating from sample components is highest between the upper limit and lower limit, thereby obtaining a high quality MS/MS spectrum.
摘要:
Provided are an automatic analysis method, an automatic analysis apparatus, and a program for the automatic analysis apparatus capable of discriminating a number of components included in a sample more accurately and easily. Components are discriminated based on respective pieces of resolution spectral data obtained by multivariate curve resolution (MCR) using a provisional number of components k, and the number of components included in the sample is determined based on a discriminated result. At this time, the multivariate curve resolution is repeated (steps S103 to S108) until a border value between the provisional number of components k in a case where the components are discriminated as being different in all the pieces of the resolution spectral data obtained by the multivariate curve resolution and the provisional number of components k in a case where the components are discriminated as being matched in at least two pieces of the resolution spectral data in all the pieces of the resolution spectral data obtained by the multivariate curve resolution is obtained. As a result, the number of components included in the sample can be discriminated more accurately and easily based on the obtained border value (step S113).
摘要:
A system and method for processing data in chromatographic systems is described. In an implementation, the system and method includes processing data generated by a chromatographic system to generate processed data, analyzing the processed data, and preparing and providing results based on the processed data.
摘要:
The invention relates to a method and device for analyzing a sample containing a number of substances. The method comprises the following steps: recording one or more mass spectra (mass spectra data D) of the sample (P); deconvoluting the mass spectra in a first evaluating device (A), which assigns the chromatographic peaks (a) and their associated deconvoluted mass spectra of one substance at a time based on the correspondence with a reference spectrum of the substance, and/or determining the intensity of the obtained peaks of the ions of the mass spectra in an evaluating device (B), which assigns the chromatographic peaks (b) of the ions and their associated mass spectra based on the correspondence of selective ions and their retention time ranges of the peaks (b) with the reference values of the substance predetermined for a substance, and verifying the assignments in a validating device (V).
摘要:
The invention relates to a method and device for analyzing a sample containing a number of substances. The method comprises the following steps: recording one or more mass spectra (mass spectra data D) of the sample (P); deconvoluting the mass spectra in a first evaluating device (A), which assigns the chromatographic peaks (a) and their associated deconvoluted mass spectra of one substance at a time based on the correspondence with a reference spectrum of the substance, and/or determining the intensity of the obtained peaks of the ions of the mass spectra in an evaluating device (B), which assigns the chromatographic peaks (b) of the ions and their associated mass spectra based on the correspondence of selective ions and their retention time ranges of the peaks (b) with the reference values of the substance predetermined for a substance, and verifying the assignments in a validating device (V).
摘要:
The present invention provides a system and method for automatically deriving unique surrogate response data from experiment results in which inherent data loss occurs in a sufficient number of the samples to disallow quantitative effects estimation at the experimenter's desired level of confidence for statistical significance. In part, the unique surrogate response data sets of the present invention have four primary characteristics including: each is numerically analyzable; each may be more readily or directly obtained in which inherent data loss occurs; each provides a response value for an experiment trial; and each provides information on the effect of the change made to the process or system that would have been obtainable if the experiment samples had had no inherent data loss.
摘要:
Techniques and apparatus for information assessment processes are described. In one embodiment, for example, a computer-implemented method for performing a review-by-exception process may include, via one or more processors of a computing device, accessing chromatography information generated via analyzing a sample using a mass spectrometry system, the chromatography information comprising at least one peak and at least one peak attribute for the at least one peak, determining posterior probability information for the chromatography information; generating an estimated peak model based on the posterior probability information, determining a confidence indicator for the estimated peak model, and generating an exception for the at least one peak responsive to the confidence indicator being outside of an exception threshold. Other embodiments are described.
摘要:
A peak extraction method for extracting a true peak from a measured waveform, including acquiring a second derivative waveform; extracting a provisional peak on the basis of a maximum value and/or a minimum value of the second derivative waveform; determining the peak width of the provisional peak on the basis of a model peak function; computing, on the basis of the model peak function, a theoretical value for the height of the provisional peak using two points corresponding to the two ends of the peak width; computing, based on the second derivative waveform, an index value for a variation in the noise on the measured waveform; and computing an S/N ratio, which is a ratio of the peak height theoretical value and the index value, and extracting the provisional peak that is equal to or greater than a preset value as the true peak.