Retention behaviors of pyrazine and alkylpyrazines on various stationary phases in reversed-phase liquid chromatography were examined. An abnormal temperature effect on the retention of alkylpyrazines with a mobile phase consisting of acetonitrile and water was observed when changing the column temperature. On the other hand, no similar trend was found with a methanol-water mobile phase. For al...

This study investigates mobile banking systems adoption in two countries; Korea and Finland, and proposes a mobile banking resistance model. Both Korea and Finland are currently using the most advanced wireless infrastructure and mobile banking systems. However, numerous inhibitors of mobile banking systems have delayed the widespread use of mobile banking systems. This study reports the signif...

A major problem in gel permeation chromatography (GPC) or size exclusion chromatography is non-specific binding of applied proteins to the column matrix (stationary phase). We have tested an aqueous arginine solution as the GPC mobile phase on silica-based and polymer-based columns, using mouse monoclonal antibody and recombinant human activin, interleukin-6, basic fibroblast growth factor, and...

Abstract: The plate model proposed by Martin and Synge has been used for the characterization of columns up-to-date. In this approach, the column is divided into a large number (N) of identical theoretical plates. Mobile phase transference between plates takes place in infinitesimal steps with mixing of the solutions in the adjacent plates during the flow. The plate height is related to the ban...

As mobile learning simultaneously employs both handheld computers and mobile telephones and other  devices  that  draw  on  the  same  set  of  functionalities,  it  throws  open  the  door  for  swift connection between learners  and teachers. This  study examined and articulated the impact of  the application of mobile devices for teaching English vocabulary items to 123 Iranian semi-illitera...