Help us to make this Chemistry blog the best by making regular visits.
HOT NEWS HOT NEWS HOT NEWS HOT NEWS HOT NEWS HOT NEWS
(1) MIT: New insights on fusion power

David Chandler, MIT News Office
December 3, 2008

Research carried out at MIT's Alcator C-Mod fusion reactor may have brought the promise of fusion as a future power source a bit closer to reality, though scientists caution that a practical fusion powerplant is still decades away.

Adapted from - http://web.mit.edu/newsoffice/2008/fusion-results-tt1203.html


(2)Disappearing superconductivity reappears -- in 2-D

Scientists studying a material that appeared to lose its ability to carry current with no resistance say new measurements reveal that the material is indeed a superconductor -- but only in two dimensions. Equally surprising, this new form of 2-D superconductivity emerges at a higher temperature than ordinary 3-D superconductivity in other compositions of the same material.

Adapted from - http://www.bnl.gov/bnlweb/pubaf/pr/PR_display.asp?prID=865

Hot News Links Visit .....
Custom Search

December 2, 2008

Basic Liquid Chromatography

Basic Liquid Chromatography - Analytical

Chemistry online Resources

Link - http://hplc.chem.shu.edu/HPLC/index.html

"High Performance Liquid Chromatography (HPLC) is one mode of chromatography, the most widely used analytical technique. Chromatographic processes can be defined as separation techniques involving mass-transfer between stationary and mobile phases.

HPLC utilizes a liquid mobile phase to separate the components of a mixture. These components (or analytes) are first dissolved in a solvent, and then forced to flow through a chromatographic column under a high pressure. In the column, the mixture is resolved into its components. The amount of resolution is important, and is dependent upon the extent of interaction between the solute components and the stationary phase. The stationary phase is defined as the immobile packing material in the column. The interaction of the solute with mobile and stationary phases can be manipulated through different choices of both solvents and stationary phases. As a result, HPLC acquires a high degree of versatility not found in other chromatographic systems and it has the ability to easily separate a wide variety of chemical mixtures"[1].......
First chapter of the book
1.http://hplc.chem.shu.edu/HPLC/index.html

Analytical Inorganic Organic Physical

World Best Free Online Courses, Visit and Learn

Posted by chemistry at 12:49 AM
Labels: , ,

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

Free Chemistry Hand Books

Hand Books

This site provides thermochemical, thermophysical, and ion energetics data compiled by NIST under the Standard Reference Data Program.


Learn Chemistry Online - Free online courses

World Best Free Online Courses, Visit and Learn

Last Week Courses

Many New Courses are Coming  Soon, Try  These Links