An invitation package which included a self-explanatory introduction letter, a sample log-form and a reply slip was sent to each of the aforementioned 277 doctors from November to December 2008.
After the debate moderator, Wolf Blitzer, opened the program by giving a sample introduction — he told the candidates that Wolf Blitzer was actually his real name — he urged the candidates to do the same.
In this study, design and optimization studies of a sample introduction system based on ultrasonic nebulization of metal salts in aqueous environment for laser-induced breakdown spectroscopic detection were presented.
The design of a sample introduction system must consider the efficiency of the heat transfer from the plasma to the droplets, which is related to the power reaching the sample and the residence time of the droplets for the complete desolvation and volatilization in the plasma.
A flow injection (FI) method was developed using electrochemical hydride generation (EcHG) as a sample introduction system, coupled to an inductively coupled plasma time-of-flight mass spectrometer (ICP TOFMS) for rapid and simultaneous determination of six elements forming hydrides (As, Bi, Ge, Hg, Sb and Se).
Thermal desorption is a sample introduction method using heat to extract/vaporise additives from a polymer matrix or a sample extract.
A HGX-200 advanced membrane cold vapour and hydride generation system (Cetac Technologies, Omaha, Nebraska, USA) was employed as a sample introduction system.
This new hybrid CE system consists of a poly(dimethylsiloxane) (PDMS) microchip sample injector featuring a pneumatic microvalve that separates a sample introduction channel from a short sample loading channel, and a fused-silica capillary separation column that connects seamlessly to the sample loading channel.
The operating principle of such a sample introduction system is based on the conversion of a liquid into a polydisperse aerosol (nebulizer) and subsequent filtering out of large droplets (spray chamber).
For a refresher (or an introduction) below is a sampling of compilations to help bring New Yorkers up to speed.
