Searching Chemical Abstracts Online
Online Tutorial #1

Bret Heim, MM, MSLIS
Instructional Librarian

A. Translating a question into a search

1. Write the following question as a search argument
using appropriate Boolean operator(s):


How is krypton difluoride synthesized?

submit

2. Rewrite the search argument in 1.a. truncating the word "synthesized"
to allow for possible suffixes.


submit

3. Write the following question as a search argument
using appropriate Boolean operator(s) and truncation.


Locate the papers in which W. Oppolzer described his synthesis of lysergic acid.

submit


B. Practice run
 

File selection and the "Search" command.


Once you have logged in to the STN Academic Program account,
you will receive a greeting and announcements, etc., that look something like this:

************* Welcome to STN International ****************

NEWS 1  Sep 27  Announcement for STN Academic Program Users

************* STN Columbus  ****************
FILE 'HOME' ENTERED AT 18:25:19 ON 27 SEP 99

1. Type the command and file name to begin searching the "Learn Chemical Abstracts" file.

submit

FILE 'LCA' ENTERED AT 18:26:03 ON 27 SEP 99
USE IS SUBJECT TO THE TERMS OF YOUR CUSTOMER AGREEMENT
COPYRIGHT (C) 1999 AMERICAN CHEMICAL SOCIETY

LCA IS A STATIC LEARNING FILE

2. Write a simple search argument to find references to ibuprofen

submit


The DISPLAY command and formatting results

After entering your search argument, the system will return results
in the form of a List or L set similar to that indicated below:

L2 11 IBUPROFEN

Using the DISPLAY command, type the command to display records 1-3
of the above L set 2 in bibliographic citation (bib) format.

submit

Troubleshooting

    Why did the search below fail?

s ibuprofin

submit

Type a strategy to find references on the toxic effects of alkaloids.

submit

The STN system indicated the number of hits on each of your terms individually,
then tells you how many hits result from your Boolean argument.

254 ALKALOID?
1258 TOXI?

L3 11 ALKALOID? AND TOXI?

Using the DISPLAY command, type the command to display records 1,3,5
of the above L set 3 in bibliographic citation (bib) format.


submit

Type a strategy to find references on the use of high-pressure liquid chromatography
(HPLC) in the analysis of amino acids.

submit

Use the EXPAND command to write an argument to check to form of entry
for Robert C. A. Frederickson.


submit

What kind of document is the following record?

AN 91:88417 LCA
TI Diurnal differences in opioid peptide levels
correlated with nociceptive sensitivity
AU Wesche, D. L.; ***Frederickson, R. C. A.***
CS Sch. Med., Indiana Univ., Bloomington, IN, USA
SO Life Sci. (1979), 24(20), 1861-7
CODEN: LIFSAK; ISSN: 0024-3205
DT Journal
LA English

submit


The last thing to do is to log off from the STN Chemical Abstracts
Service. Simply type  

log off

answer "yes" and you will be disconnected.

ALL L# QUERIES AND ANSWER SETS ARE DELETED AT LOGOFF

LOGOFF? (Y)/N/HOLD:y

STN INTERNATIONAL LOGOFF AT 18:48:00 ON 27 SEP 99

Look for the second online tutorial soon!

Goodbye until then!