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Crystallization, cold directional dependence

The crystal compositions vary, depending on the transport agent used, from TiB,4,y (Ij) and TiBj <,4 (TeCl4). At process temperatures > 1000°C and with I2, the transport direction is reversed. Crystals grow in the cold zone of the tube, but only microscopic needle-like crystals are obtained. ... [Pg.280]

The dried droplet standard MALDI sample preparation is very simple. Here, the sample and matrix are dissolved in solvents or solvent systems that are miscible with each other, and mixed either before deposition onto or directly on the MALDI sample support. The matrix-analyte droplet of typically 1 pi volume is then slowly dried in air, or under a forced flow of cold air. This results in a deposit of crystals which, depending on the matrix and preparation conditions (e.g., solvent evaporation rate), vary between submicrometer and several hundred micrometers in size. In cases of solvent systems with a high polarity, surface tension leads to a nonhomogeneous distribution of the individual crystals near the rim of the... [Pg.24]

See other pages where Crystallization, cold directional dependence is mentioned: [Pg.254]    [Pg.2565]    [Pg.250]    [Pg.83]    [Pg.326]    [Pg.402]    [Pg.906]    [Pg.1007]    [Pg.80]    [Pg.273]    [Pg.1822]    [Pg.2452]    [Pg.1027]    [Pg.103]    [Pg.582]    [Pg.2238]    [Pg.8]    [Pg.238]    [Pg.35]    [Pg.167]    [Pg.30]    [Pg.2222]    [Pg.276]    [Pg.2068]    [Pg.473]    [Pg.654]    [Pg.8326]    [Pg.65]    [Pg.120]    [Pg.32]    [Pg.72]    [Pg.37]    [Pg.227]    [Pg.182]    [Pg.682]    [Pg.269]    [Pg.495]    [Pg.277]   
See also in sourсe #XX -- [ Pg.256 , Pg.257 , Pg.257 ]



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Cold crystallization

Cold-crystallized

Crystal directions

Direct crystallization

Directional crystallization

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