has been in operation since 2004 formerly under the name of Jet Turbine Services before becoming a new joint venture between Lufthansa Technik AG and Qantas Airways Limited in 2008.
4] Nonstandard abbreviations: MI, myocardial infarction; SCUBE1, signal peptide, CUB domain, EGF-like 1; GDF-15, growth differentiation factor 15; ST-2, suppression of tumorigenicity 2; NT, N-terminal; BNPsp, signal peptide of prepro-B-type natriuretic peptide; STEMI, ST-elevation MI; ANPsp, signal peptide of preproANP; SPPase, signal peptide peptidase; CK, creatine kinase; LC, liquid chromatography; LTQ
, linear trap quadrupole; MS, mass spectrometry; FWHM, full width at half maximum; MS/MS, tandem MS; SE, size exclusion; TFA, trifluoroacetic acid; CNP, C-type natriuretic peptide; ED50, effective displacement; BMI, body mass index.
Orbitrap Velos and LTQ
Velos Mass Spectrometers II-65
Dinh PN, Long HT, Nguyen TKT, Hien NT, Mai LTQ
, Phong LH, et al.
Two subsequent (Early Jurassic) types of quartz-normative tholeiites are labelled LTQ
("low titanium quartz") tholeiite, and HFQ ("high-iron quartz") tholeiite.
The chromatography system was coupled to an LTQ
Orbitrap Velos mass spectrometer equipped with a Nanospray II source (Thermo Fisher Scientific).
For instance, a Thermo Scientific LTQ
Orbitrap mass analyser coupled to a linear ion trap mass spectrometer can offer resolution of more than 100k and mass accuracies of better than 3 ppm, enabling rapid parallel data acquisition.
A data-dependent mode was used to analyze samples, and a full MSI scan was acquired from 450 to 1450 m/z in the mass analyzer (resolution of60 000), followed by MS2 scan acquisition of the top 6 parent ions in the LTQ
The purpose of this RFP is to procure one refurbished Thermo LTQ
XL mass spectrometer or equivalent, including Ion Max Source with ESI Probe and APCI probe which will allow for more extensive coverage for predicted and unpredicted metabolites and the ability to perform peptide quantification using isobaric labeling.
Fractions containing tryptic peptides were dissolved in aqueous 25% v/v ACN and 1% v/v formic acid and these were resolved and ionized by using nanoflow HPLC (EasynLC II, Thermo Scientific, Waltham, MA) coupled to the LTQ
XL-Orbitrap hybrid mass spectrometer (Thermo Scientific).
Finally, the sample was analyzed by LC-MS using an LTQ
The HRMS of the products were measured on a LTQ
Orbitrap (Thermo Electron) spectrometer (positive ionization, static nanospray, boron silicate emitters Proxeon, resolution 100 000 at m/z 400, external calibration), using acetonitrile as the solvent.