Dataset Information

GNPS 2404_Workshop_Dysidea_avaria_and_Olea_europa

ABSTRACT: Mass spectrometry method: the extracts were analyzed by high-performance liquid chromatography (LC) coupled to a high-resolution tandem mass spectrometer (HRMS, q-Exactive, Orbitrap) fitted with a heated ElectroSpray Ionization (ESI) and operating in positive ionization mode. Fragmentation spectra (MS/MS) were collected in data-dependent mode. The chromatography conditions were as follow: reverse-phase column (2 um C18 particles, 150 x 2.1 mm) and the mobile phase consisted of acetonitrile-water + 0.1% formic acid (gradient mode starting from 10% acetonitrile to 100% in 30 min).

INSTRUMENT(S): Q Exactive

ORGANISM(S): Dysidea Avara Olea Europaea Subsp. Europaea (ncbitaxon:158383)

SUBMITTER: Mohamed MEHIRI

PROVIDER: MSV000094531 | GNPS | Sat Apr 13 05:21:00 BST 2024

REPOSITORIES: GNPS

ACCESS DATA

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Project description:<p>The sample to be tested was fully ground into powder in the grinder, 50 mg of the sample was freeze-dried, 1000 μL of the extraction solution containing the inner target was added (methanol:acetonitrile:water, 2:2:1, v/v/v, internal standard concentration 20 mg/L) and vortex mixed for 30 s; then add the steel ball to the 45 Hz grinder for 10 min, ultrasonic 10 min; the sample to be tested is obtained after filtration. When detecting metabolites, metabolite determination was performed based on the LC-MS system, which mainly consists of Waters Acquity I-Class PLUS ultra-high performance liquid tandem and Waters Xevo G2-XS QTof high-resolution mass spectrometer. Meanwhile, the Waters Acquity UPLC HSS T3 column (1.8 um 2.1 x 100 mm) was used as the chromatographic column. Positive and negative ion modes were used to determine the metabolites. Mobile phase A: 0.1% formic acid aqueous solution; Mobile phase B: 0.1% acetonitrile formate. The mobile phase conditions of liquid chromatography were as follows: the flow rate was 400 μL/min, 0.0 min: 98% flow A, 2% flow B; 0.25 min: 98% flow A, 2% flow B, 10.0 min: 2% flow A, 98% flow B; 13.0 min: 2% flow A, 98% flow B; 13.1 min: 98% flow A, 2% flow B; 15.0 min: 98% flow A, 2% flow B. MSe mode controlled by acquisition software (MassLynx v4.2, Waters) was used for primary and secondary mass spectrum data acquisition. ESI ion source parameters are as follows: Capillary voltage, 2500 V (positive ion mode) or -2000 V (negative ion mode); Cone hole voltage, 30 V; Ion source temperature, 100 °C; Desolvent temperature, 500 °C; Air flow rate, 50 L/h; Desolvent gas flow rate, 800 L/h; Plastic-nucleus ratio (m/z) collection range 50-1200 m/z. In the qualitative and quantitative analysis of metabolites, the original data collected by MassLynx v4.2 were processed by the Progenesis QI software for peak extraction, peak alignment, and other data, and the metabolites were identified based on the Progenesis QI software online METLIN database. Then, based on the results of the total score, MS2 score, and mass error (ppm), the metabolites were qualitatively determined.</p>

Dataset Information

GNPS 2404_Workshop_Dysidea_avaria_and_Olea_europa

Dataset's files

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets