part i: chemical abstracts
Post on 04-Jan-2016
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Chemical Abstracts• each year or half year has the following
– Chem Abs # volumes (given by number ranges)– author, subject, formula indexes
• look for decennial indexes if possible– if you are not exactly certain of the year, these
10-year volumes are cumulative
• let’s some examples– author: F.E. Lytle, 1971– subject: information retrieval (F.E. Lytle)– formula: C10H10Fe
Chemical Abstracts• the subject search should reveal the same
information
• since the article is about information retrieval, I looked it up– subject searches require you have a good idea of
the general topic
• article title = “Some Comments on Computer Searching of Information File Using Hash Codes”– worked information– did not work hash, searching
Chemical Abstracts• now that I have the Chem Abstract #, what
do I do with it?– use the other books in the same volume to find the
journal reference for the paper
• the # was 104930t– 104930 is the column number– t is the paragraph or row number– older volumes use superscripted numbers for
rows, such as 61464, where the 4 is the row
Chemical Abstracts• with Decennial indexes, the
volume # is also given with the Chem Abstract #
the volume number
the Chem. Abstract #
Chemical Abstracts - other hints• use the Decennial indexes if possible
• search the year before and the year after target year– paper may have been published near a year end
Your Assignments• report your results on the backside of the
worksheet
Author Formula Subject
Search Search Search
Jamie Doyle 6 5 2
Michael Heiston 3 7 7
Sam Kistler 5 6 6
Amanda Kistler 7 2 4
Myrta See 2 3 3
Bob Wallace 1 1 5
Chemical Abstracts Online• Chemical Abstract Service (CAS)
– founded in 1907– indexes and abstracts patents, journal articles – indexes over 9,000 scientific journals – 2002 CAS indexed over 800,000 entries (that year)
• STN is used to access CAS– STN = Scientific and Technical information
Network– BC has an account with STN
• use it only after 5 PM (90% discount after that)
– use the “Using STN” cheat sheet for logging in & searching
STN Help• more help with STN commands is
available at – http://www.stn-international.de/
training_center/messenger/training/stncommands.html
Getting the Article• now that you have the journal reference you
need to get the actual article
• sources– hard copy in our library– ACS Web Editions– Google search (you could get lucky!)– InterLibrary Loans
Getting the Article• let’s try to find the following
– F.E. Lytle’s paper: Anal. Chem. vol. 43, p. 1334• Use ACS Web Editions
– ferrocene paper: J. Chem. Phys. vol. 24, p. 1260• Periodic Locator
• Sometimes it does not go back far enough in time
• Use ILL
InterLibrary Loans (ILL’s)• use when our library or other online sources
do not have the desired journal
• it takes a week or so, but it is convenient and easy
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