Chemical Data Management System performance

A LIMS is a database management system designed especially for the tasks of a laboratory. Such a system can store a lot of data (not only about samples) and give information about the data. In addition to data related to the samples and orders, one can create files on, for example, all laboratory workers, holiday lists, analytical instruments (inventory), all relevant telephone numbers and postal and e-mail addresses, the stock of chemicals in use and in store, the stock of equipment, and books and other literature. As all these files create a requirement for storage capacity and performance, if information is searched for it is perhaps better to use a PC for this purpose. Nearly all the performance of the LIMS computer (server) is needed for the LIMS and should not be used for other activities. Only if there is a powerful computer for the LIMS could the mentioned files be stored in the frame of the LIMS database. 

The LC system consisted of a Jasco 880 PU pump (JASCO, Tokyo, Japan) for the mobile phase, a Rheodyne Model 7125 injector with a 25 pL loop, and a 0.2 x 15 cm Mightysil RP-18 GP (5 pm) column (Kanto Chemical, Tokyo, Japan). LC was performed using an aqueous solution containing 80% MeCN as the mobile phase at a flow rate of 0.2 ml/min at 26°C. The column was connected to L-7455 diode array detector (Hitachi, Tokyo, Japan) with a flow cell (17.7 pL, 10 mm), and Hitachi D-7000 advanced high performance liquid chromatography (HPLC) system manager was utilized for data acquisition. 

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