We offer the following three-fold product and project portfolio:
pattern.search2(). Based on a large set of unique PubChem molecular formulas, quantized (a) m/z, (b) m/z differences, (c) intensity ratios and (d) marker centroids of simulated centroid pairs are listed for one instrument resolution function. Package version 1.1 was contributed 2014 to the CRAN repository while working at Eawag Dübendorf; further instrument-specific data sets are available on demand.
Software optimization and adapations for target quantification at AUE Basel.
Self-parameterized algorithms for high-precision and high-throughput profiling of hyphenated mass spec data sets.
Aligns, groups and smoothes chromatograms of re-occuring analytes, while separating isobaric ones. Testing for high levels of noise and different instrument types and applications (groundwater, surface water monitoring, different STP effluents). Replacement or supplement for existing greedy approaches in enviMass.
NTS data analysis for the interlaboratory trial of cantonal laboratories, Switzerland. Commissioned by the Federal Office for the Environment FOEN (BAFU).
NTS data analysis for the interlaboratory trial of drinking water producers, Germany. Commissioned by the state water supply Langenau (Zweckverband Landeswasserversorgung).
Data analysis for a spatiotemporal monitoring campaign in the Furtbach catchment (CH, Canton Zürich). Extraction of main and clustered intensity variations for mass spec target and nontarget profiles. Elucidation of patterns with discharge characteristics in the catchment. Commissioned by the cantonal department for waste, water, energy and air (Amt für Abfall, Wasser, Energie und Luft, AWEL, Zürich, CH).
Assistance with the data analysis for an international interlaboratory trial of monitoring stations along the Rhine River. Commissioned by the IKSR/SANA.
Suspect screening plus prioritization of industrial emissions. Spatial and process-based data clustering of selected sewage treatment plant effluents. Commissioned by the cantonal department for waste, water, energy and air (Amt für Abfall, Wasser, Energie und Luft, AWEL, Zürich, CH).
Sample data processing and prioritization of known and unknown trace organic compound time series. Summer monitoring campaign at the River Thur catchment, canton St Gallen. Commissioned by the cantonal department for water and energy (Amt für Wasser und Energie, AWE, St Gallen, CH), and in collaboration with the cantonal laboratory for the protection of water and soil (AWA/GBL, Bern, CH).
Industrial partner for a project on outlier detection as part of a bachelor-thesis, in collaboration with the Institute of Data Analysis and Process Design at the ZHAW School of Engineering, Winterthur, CH.
Detection of characteristic ESI in-source fragments for perfluorinated compounds, based on customized enviMass scripts. Commissioned for HS Fresenius / IFAR .
Automated LC/LC- and GC/GC-MS noise removal and signal detection (peak picking). Extension of the above enviPick R package for an additional dimension and for larger raw data sets.