| 单词 | sucrose gradient |
| 释义 | > as lemmassucrose gradient sucrose gradient n. a gradient in the concentration of sucrose in a medium.Sucrose gradients are often produced in order to prevent convection currents in electrophoresis and other techniques. ΘΚΠ the world > life > biology > laboratory analysis > processes > [noun] > centrifugation techniques sucrose gradient1928 sucrose density gradient1947 1928 Ann. Bot. 42 252 Variations in rate of transport of sugar into the boll are significantly correlated with variations in sucrose gradient from bark to boll. 1944 Jrnl. Exper. Med. 79 304 Concurrent experiments..performed without the protective action of a sucrose gradient showed no indication of a sedimentation boundary. 2007 E. Thompson Mind in Life iv. 74 When swimming in the presence of a sucrose gradient, these cells will tumble about until they hit upon an orientation that increases their exposure to sucrose. < as lemmas |
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