retention factor
1Temperature-Programmed Gas Chromatography , Leonid Blumberg M.
This book provides a comprehensive up-to-date overview of temperature-programmed gas chromatography (GC). The first part of the book introduces the reader to the basics concepts of GC, as well as the… 14516.82 руб электронная книга2Supporting Online Students. A Practical Guide to Planning, Implementing, and Evaluating Services , Anita Crawley
Supporting Online Students shows how effective and efficiently delivered support services improve academic success and course retention for online learners. Drawing on a decade's worth of research… 3668.23 руб электронная книга3Supporting Online Students. A Practical Guide to Planning, Implementing, and Evaluating Services , Anita Crawley
Supporting Online Students shows how effective and efficiently delivered support services improve academic success and course retention for online learners. Drawing on a decade's worth of research… 3629.33 руб электронная книга