| 释义 |
ppt, n.
Forms: 18– ppt., 18– ppt[without point]
[Shortened ‹precipitate n. (as a graphic abbreviation).]
= precipitate n. 2a.
1864F. H. Storer First Outl. Dict. Solubilities Chem. Substances p.xi/2 Abbreviations Ppt. = Precipitate. 1866W. H. Spencer Elem. Qualitative Chem. Anal. 6 Hydrochloric acid fails to precipitate Lead from dilute solutions..; hence the non-formation of a ppt. upon adding hydrochloric acid does not prove the absence of this metal. 1886Jrnl. Amer. Chem. Soc. 8 14 These results show that with HCL alone added the ppt is not pure K2PtCl6. 1955J. C. Giblin Qualitative & Volumetric Anal. (ed. 2) i. 15 Add sodium hydroxide solution. White gelatinous ppt., soluble in excess NaOH, indicates Aluminium. 2004Jrnl. Agric. Food Chem. 52 2168/1 Acetone-precipitated protein powders were prepared by adjusting the homogenase supernatant to 8% acetone with 4°C 100% acetone (acetone ppt). |