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MB Sample ID: SA096552
Local Sample ID: | 20190326_BJJ_Lipids_Sample_5_BIG |
Subject ID: | SU001406 |
Subject Type: | Invertebrate |
Subject Species: | Caenorhabditis elegans |
Taxonomy ID: | 6239 |
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Combined analysis:
Analysis ID | AN002221 |
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Analysis type | MS |
Chromatography type | Reversed phase |
Chromatography system | Shimadzu 20AD |
Column | Waters Acquity UPLC CSH C18(50 x 2.1mm ,1.7um) |
MS Type | ESI |
MS instrument type | Orbitrap |
MS instrument name | Thermo Exactive |
Ion Mode | UNSPECIFIED |
Units | Area ratio |
MS:
MS ID: | MS002067 |
Analysis ID: | AN002221 |
Instrument Name: | Thermo Exactive |
Instrument Type: | Orbitrap |
MS Type: | ESI |
MS Comments: | The mass spectrometer used was the Thermo Scientific Exactive Orbitrap with a heated electrospray ionisation source (Thermo Fisher Scientific, Hemel Hempstead, UK). The mass spectrometer was calibrated immediately before sample analysis using positive and negative ionisation calibration solution (recommended by Thermo Scientific). Additionally, the heated electrospray ionisation source was optimised at 50:50 mobile phase A to mobile phase B for spray stability (capillary temperature; 380 °C, source heater temperature; 420 °C, sheath gas flow; 60 (arbitrary), auxiliary gas flow; 20 (arbitrary), sweep gas; 5 (arbitrary), source voltage; 3.5 kV. The mass spectrometer resolution was set to 25,000 with a full-scan range of m/z 100 to 1,800 Da, with continuous switching between positive and negative mode. Lipid quantification was achieved using the area under the curve (AUC) of the corresponding high resolution extracted ion chromatogram (with a window of ± 8 ppm) at the indicative retention time. The lipid analyte AUC relative to the associated internal standard AUC for that lipid class was used to semi-quantify and correct for any extraction/instrument variation. |
Ion Mode: | UNSPECIFIED |