Solvent A consisted of 0.1% aqueous trifluoroacetic acid (TFA), and solvent B was 0.1% TFA in CH3CN or MeOH (in case of determination of radiochemical yield (RCY) or analysis of serum stability).
Considering the results obtained in case of determination of buried residues subsequent to modeling side chain positions (Table 4), we have assessed our approach to identify protein-protein interfacial residues by comparing it with distance-based method applied to the original crystal structures of complexes.
In view of increasing importance of lipid rafts and other localized domain and limited success in case of structure determination of membrane-bound proteins vis-à-vis their soluble counterparts, it is tempting to rapidly attach fluorescent or photoactivable probes to lipids to get a probes where relatively little attention is paid to design of such probes.
Ascorbic acid was determined with LOD of 1.4 mg L−1 and LOQ of 4.2 mg L−1 within linear working range up to 80 mg L−1, while in case of the determination of total acidity the values of 4.2, 11.8 and 100, respectively, were obtained.
Potential inhibitors (dissolved in DMSO) were added in a final concentration of 2 µM or 0.005 µM to 5 µM in case of IC50 determination (1% DMSO final each).
Statistical analyses were based on analysis of variance for repeated measurements (ANOVA) with the factors "time" (11 or 5 time points in case of catecholamine determination) and "group" (normal, obese, low weight subjects), followed by post hoc t-tests for pair wise comparisons.
In case of dose determination, 100 mg/kg/day is recommended as effective concentration of NKB to optimize the desired efficacy and safety.
In case of repeated determinations the first adequate sample of a patient was used for the analysis.
However, a higher mortality rate may occur in case of pulmonary determinations reaching more than 50% [ 15].
In case of diosmetin determinations in plasma, both without and with enzymatic degradation of the conjugated metabolites, spiked calibration standards (CC) and quality control (QC) samples were prepared with diosmetin at the following concentrations in plasma: 0 50 100 250 750 2,000 6,000 15,000 24,000 pg/mL (CC) and 150 900 9,000–18,000 pg/mL (QC 1, 2, 3, and 4, respectively).
In the case of determination of lubricating additives in diesel fuel, which was a mixture of oleic and linoleic acids, an extraction-derivatization method with the phase transfer catalyst (methanolic solution of tetramethylammonium hydroxide) was used.
