Finally a couple of chemistry reference questions

1. A student wanted information on testing of pharmaceutical packaging. We searched Business Source Premier, Scopus, and Scifinder Scholar. Some of the retrieved references were on the testing of the pharmaceutical ingredient not the packaging. "Testing" was a stop word in Scifinder Scholar so we used integrity of pharmaceutical packaging to search. Again, my friends at Chemical Abstract Service through a curve ball at me. Integrity mapped to integral which created false hits.

2. A second student was looking for information on the effect of pore size on membrane filtration. Scopus had the advantage since one could sort by relevance. He only needed two references on the topic.