英和和英

名詞

tipful (複数形 tipfuls)

1. The amount of a substance that covers the tip of something, such as a spatula.
   • 1999, Harold Hart, Leslie E. Craine, David J. Hart, “Experiment 1: Melting-Point Determination: Purity and Identity of Crystalline Organic Compounds”, in Organic Chemistry: A Short Course (Instructor’s Resource Manual for the Laboratory Manual), 10th edition, Boston, Mass., New York, N.Y.: Houghton Mifflin Company, →ISBN, page 1:

     Each student prepares individual samples of an unknown and a 50:50 mixture of the unknown and the suspected known. Using microspatula tipfuls of compound will avoid congestion at balances.

   • 2000, Gary Wulfsberg, “[Appendix A: Discovery Laboratory Experiments for Part I] Nonaqueous Reactions of Metal Ions and Compounds”, in Inorganic Chemistry, Sausalito, Calif.: University Science Books, →ISBN, page 930:

     If you select a solid chloride, dissolve two large spatula-tipfuls of it in 2–3 mL of acetone.