Summary of Study ST001712
This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR001096. The data can be accessed directly via it's Project DOI: 10.21228/M81M6P This work is supported by NIH grant, U2C- DK119886.
See: https://www.metabolomicsworkbench.org/about/howtocite.php
Study ID | ST001712 |
Study Title | Metabolomics analysis of plasma from a mouse model of astrocytoma subjected to radiotherapy |
Study Summary | Mice were randomized in two groups (n=9 mice/group), one group was subjected to radiotherapy (Monday and Friday for 2 consecutive weeks at 3Gy/session) and the other cohort was the control. Sample were taken approximately each 10 days from the tail vein. |
Institute | National Cancer Institute |
Last Name | Larion |
First Name | Mioara |
Address | 37 Convent Dr, Building 37 Room 1136 |
mioara.larion@nih.gov | |
Phone | 2407606825 |
Submit Date | 2021-02-26 |
Analysis Type Detail | LC-MS |
Release Date | 2021-03-09 |
Release Version | 1 |
Select appropriate tab below to view additional metadata details:
Combined analysis:
Analysis ID | AN002787 |
---|---|
Analysis type | MS |
Chromatography type | HILIC |
Chromatography system | Agilent 6545 QTOF-MS |
Column | AdvanceBio Glycan Map (2.1 x 100mm, 2.7µm) |
MS Type | ESI |
MS instrument type | QTOF |
MS instrument name | Agilent 6540 QTOF |
Ion Mode | NEGATIVE |
Units | arbitrary units |
MS:
MS ID: | MS002583 |
Analysis ID: | AN002787 |
Instrument Name: | Agilent 6540 QTOF |
Instrument Type: | QTOF |
MS Type: | ESI |
MS Comments: | LC/MS analysis was conducted with the Agilent 6545 QTOF-MS combined with 1290 Infinity II UHPLC system (Agilent Technologies, Wilmington, DE, USA). Only LC/MS grade solvents and additives purchased from Covachem (CovaChem, LLC., Loves Park, IL, USA) were used to prepare mobile phases and wash solutions. Wash cycles consisting of strong wash (50% Methanol, 25% Isopropanol, and 25% Water), weak wash (90% Acetonitrile and 10 % Water), and seal wash (10% Isopropanol and 90% water) were implemented to eliminate carryover between injections. Dried extracts were reconstituted in 80 µL 60:40 MeOH/H2O and samples were injected (8 µL) to resolve analytes using Infinity 1290 in-line filter combined with AdvanceBio Glycan Map 2.1 x 100mm, 2.7µm column (Agilent Technologies, Wilmington, DE., USA) set at 35 0C. The solvent buffers were composed of mobile phase A (10 mM ammonium acetate in 88% water/ 12% acetonitrile) and mobile phase B (10 mM ammonium acetate in 90 % Acetonitrile) titrated with formic acid and ammonium hydroxide to pH 6.85. The linear gradient was executed at flow rate 0.2 mL/min, as follows: 100 % B, 0.5 min; 95% B, 2.0 min; 60 % B, 3.0 min; 35 % B, 5 min; hold 0.25 min; 0% B, 6 min; hold 0.5 min; 100 % B, 7.8 min; equilibrate for 1.7 min. The mass analyzer acquisition parameters include drying gas temperature, 250 0C; drying gas flow, 9 L/min; sheath gas temperature, 325 0C; sheath gas flow, 11 L/min; nebulizer, 45 psig. Mass spectra were acquired at 3.0 spectra/s in negative electrospray ionization (ESI-) mode for a mass range from 72 to 1200 m/z using a voltage gradient of capillary 3000 V, nozzle 2000 V, fragmentor 80 V, skimmer 50 V, and octopole radio frequency 750 V. |
Ion Mode: | NEGATIVE |