Access the full text.
Sign up today, get unlimited access with DeepDyve Pro!
and characterization of DNA after ESI At the low mass spectrometric resolution of a quadrupole mass spectrometer , ESI of the plasmid DNA sample afforded a single broad envelope of ionized species extending between m/z ...
present on human skin [38–39]. All tubing was PFA or PEEK and air flow rates were controlled using mass flow controllers (Bronkhorst, Ruurlo, NL). VOC- free air was generated by passing ambient air through ...
earlier (8). Fig. 1 shows the UV-chromatogram at a wavelength of 210 nm as well as the SIM chromatograms at the molecular mass ions m/z = 386 and m/z = 389 for an extract of a serum sample ...
in the autosampler tray for injection into the mass spectrometer . sample introduction and mass spectrometry We use a Model PU-980 HPLC pump and a Model AS-950 autosampler (both from Jasco International Co., Tokyo ...
cm) with a set gradient. The column flow rate was maintained at 500 nL/min with a column temperature of 40°C. An electrospray voltage of 2.1 kV versus the inlet of the mass spectrometer was used ...
on an Agilent C18 microbore column (50 µM diameter) at a flow rate of 10 µl/min. The LC eluent flowed directly into a PE Sciex Q-Star Pulsar mass spectrometer . Mass standards consisted of a solution of PEG-200 ...
-containing peptides was studied in the absence or presence of copper ions electrogenerated from a sacrificial electrode in on-line mass spectrometry. This highlights differences in intra- and inter- molecular ...
and bottom channels. The top and bottom inlet reservoir medium was replenished every 2 days while the chips were under flow . VX solution preparation, dosing, and sampling The VX used in this study ...
into mass spectrometers using ESI, which typically produces protonated molecular ions. Fig. 1 A shows a full-scan chromatogram of a urine specimen that had been supplemented with a variety of drugs from ...
). The analysis of the SPME captured constituents of the aerosol was performed using a DART ionization source coupled to a time-of-flight mass spectrometer (DART–MS) as well as by gas chromatography– mass ...
Access the full text.
Sign up today, get unlimited access with DeepDyve Pro!