| 单词 | salt bridge |
| 释义 | > as lemmassalt bridge salt bridge n. Chemistry (a) a tube containing an electrolyte (frequently in the form of a gel) which provides electrical contact between two solutions; (b) a structure linking parts of a large molecule by means of a polar bond; spec. one formed between an acidic and a basic group. ΘΚΠ the world > matter > chemistry > equipment or apparatus > [noun] > miscellaneous apparatus bain1477 speculum1650 filtering paper1651 wheel-fire1662 filter paper1670 sun furnace1763 respirator1789 candle-ball1794 rectifier1822 candle-bomb1823 filter1823 oxyhydrogen blowpipe1823 shade1837 graduator1839 pipette1839 thistle funnel1849 pressure tube1852 ozonizer1858 dialyser1861 Liebig condenser1861 Sprengel pump1866 Sprengel tube1866 water softener1867 mercury pump1869 Bunsen burner1870 dialysator1877 test-mixer1877 tube-condenser1877 Kipp1879 reflux condenser1880 policeman1888 converter1889 pressure boiler1891 spot plate1896 hydrogen electrode1898 sampler1902 reactor1903 fume-chamber1905 Permutit1910 microburner1911 salt bridge1915 precipitator1919 Raschig ring1920 microneedle1921 titrator1928 laboratory coatc1936 spray tower1937 precipitron1938 ion exchanger1941 potentiostat1942 chemostat1950 Knudsen pipette1951 pH-stat1956 cryopump1958 the world > matter > chemistry > chemical bonding > [noun] > polar bonding > electrovalent or ionic bond > structure linking by salt bridge1915 1915 Jrnl. Amer. Chem. Soc. 37 2781 Bjerrum's method of extrapolation..is to add, to the voltage obtained by using 3·5 M KCl as a salt bridge, the difference between this voltage and that obtained by using 1·75 M KCl as the salt bridge. 1929 H. T. S. Britton Hydrogen Ions viii. 109 These two solutions are connected through the ‘salt bridge’, a narrow inverted U-tube, containing saturated KCl solution. 1965 Jrnl. Molecular Biol. 13 656 This arrangement would allow the α-amino group of one β-chain to form a salt-bridge with the α-carboxyl group of its symmetrically related partner, resulting in the formation of two salt bridges on either side of the dyod axis. 1978 P. W. Atkins Physical Chem. xii. 347 Another way of eliminating the junction potential is to connect the two half-cells with a salt bridge formed by dissolving potassium chloride in a water-soluble jelly. 1978 Nature 23 Nov. 362/1 Protein subunits in the two layers of the disk of tobacco mosaic virus have very similar conformations. Much of the bonding between subunits is polar, including salt-bridge systems. < as lemmas |
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