The thermal conductivity of coatings was successfully evaluated with the pulsed thermal imaging method using a combined sample of coatings and a substrate.
Additional issues regarding the use of indicators occur with regard to the sample substrate and the sources of contamination.
NDA amino acid conjugates were found to have the following retention times: NDA NHA, 4.2 min; NDA citrulline, 6.2 min; NDA NMOA, 4.4 min; NDA NHMA, 4.4 min; and NDA NMMA, 4.6 min. On the basis of standard samples, substrates and l-citrulline were found to ionize at approximately the same ratio and therefore percent turnover was determined from integration of the MS peak areas.
Moreover, the sample substrates, sample thicknesses, and methods of sample preparation can be similar for both methods.
We analyzed the temporal variations of the radiocesium concentrations and examined the particles on the sample substrates of the impactor and its filters using SEM-EDS.
Whatman chromatography papers (Grade 1, ET31, and silica-coated grade SG81) were used to prepare sample substrates for paper spray and extraction spray analysis.
After ultrasonification the dispersion was dispensed onto sample substrates, made from silicon and copper.
Au or In were chosen as sample substrates to minimize potential contamination and charging artifacts during SEM, NanoSIMS (secondary ion mass spectroscopy), and time-of-flight (ToF -SIMS analyses.
Samples without substrates and samples without cell-free extracts were used as negative controls, while E. coli W3110 cells grown on E2 with xylose were used as the positive control.
In this modified configuration (refer to Appendix S1 and Figures S1, S2 for details), we make use of a fiber-optic faceplate inserted underneath the sample substrate to control and tailor the fluorescent PSF of the imaging platform.
