Chromatography is a separation technique in which the separation is mainly based on the colour (chrom- colour). In this technique a stationary phase and a mobile phase are present which helps in separation. The stationary and mobile phases are chosen based on the sample and its differential solubility. Either adsorption or partition is the main principle involved in the chromatography based on the method selected.
The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.
Last date updated on September, 2014