RSC Publishing Blog

Revised Impact Factor figures for Nanoscale (4.109) and Analytical Methods (1.036) have now been released by Thomson Reuters, who provided us with the statement below. All other RSC journal Impact Factors remain the same.

“The journals NANOSCALE and ANALYTICAL METHODS were accepted for inclusion in the Thomson Reuters Citation Indexes in the year 2010. Indexing of the titles was made retroactive to 2009 in order to include the content of Volume 1, 2009 for each title so that our coverage would span all content published by the journal from its launch, as well as to issue a Journal Impact Factor as quickly as possible. This additional back year of coverage resulted in the under-counting of citable items during JCR production equivalent to the content of one 2009 issue for each journal. This anomaly prevented the appearance of the journals in the first release of the JCR. Our remedy was to by-pass the JCR output and use raw data to create a Journal Impact Factor for our Notices file. The Journal Impact Factor, however, was missing some of the year 2009 content, resulting in a significant over-estimation of the final value. We regret this error and appreciate the cooperation of the Royal Society of Chemistry in noting the corrected data.”

Please disregard the figures for Nanoscale and Analytical Methods that were released in news published prior to July 15^th 2011.

The revised list of all RSC Journal Impact Factors is: