Tandem mass spectrometry analysis was done with a MicroQtof (Waters) using data directed acquisition.
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Samples were ionized with either EI or methane PCI using full scan MS or molecular-ion directed acquisition (MIDA -MS/MS.
The second, an "intelligent" data-dependent acquisition paradigm for small molecule discovery, termed "molecular-ion directed acquisition" or MIDA, maximizes the information content from data-dependent MS/MS and SIM by directing the instrument to sample the ions of greatest information content.
Second, with an "intelligent" data-dependent algorithm, termed molecular-ion directed acquisition (MIDA), we maximize the information content generated from unsupervised tandem MS (MS/MS) and selected ion monitoring (SIM) by directing the MS to target the ions of greatest information content, that is, the most-intact ionic species.
Additionally, stable-isotope labeling, in conjunction with our molecular-ion directed acquisition (MIDA) approach for MS/MS, guarantees not only information-rich MS/MS spectra for intact, or nearly intact, ionic species but also immediate readout of the number of carbon and nitrogen atoms present in each precursor and product ion species.
Participants reported that, at the time of the study, they were responsible for directing the acquisition of and the attainment of proficiency in procedural skills.
IL-12 and IL-7 were utilized in the induction phase of the tumor-specific T cell response in vitro, because of the known function of IL-12 in directing the acquisition of strongly anti-tumor Th1/Tc1 effector functions, and of IL-7 in supporting the growth of human CD8+ T cells [29], [30], [31].
Where applicable, direct acquisition through fieldwork is much preferred.
"Marketing for awareness and brand equity is considered less important to direct acquisition of customers," says Supromajakr.
