Connecting device for pneumatic and/or hydraulic circuits in column
chromatography
    1.
    发明授权
    Connecting device for pneumatic and/or hydraulic circuits in column chromatography 失效
    柱层析中气动和/或液压回路连接装置

    公开(公告)号:US4394263A

    公开(公告)日:1983-07-19

    申请号:US327548

    申请日:1981-12-04

    Abstract: The invention relates to a connecting device for fluid circuits in column chromatography. To ensure an inert connection without dead volumes, the device comprises a glass or fused silica thick-wall body with an inner capillary channel connected to the outside through radial holes. In such holes, metal or fused silica capillaries are inserted and each fixed by means of a coupling carrying a capillary set screw and a coupling fixing screw, with said screws acting on opposite positions of said body wall.

    Abstract translation: 本发明涉及一种用于柱层析中流体回路的连接装置。 为了确保没有死体积的惰性连接,该装置包括玻璃或熔融石英厚壁体,内部毛细通道通过径向孔连接到外部。 在这样的孔中,插入金属或熔融二氧化硅毛细管,并且每个都通过携带毛细管固定螺钉和联接固定螺钉的联接器固定,所述螺钉作用在所述体壁的相对位置上。

    Stabilized dicalcium aluminate hydrates
    2.
    发明授权
    Stabilized dicalcium aluminate hydrates 失效
    稳定的铝酸钙水合物

    公开(公告)号:US4095989A

    公开(公告)日:1978-06-20

    申请号:US778295

    申请日:1977-03-16

    CPC classification number: C01F7/164 C04B28/06

    Abstract: In the making of a mortar or concrete rich in aluminate cement wherein the cement is mixed with water to hydrate and is thereafter permitted to harden, the improvement which comprises adding to the mixture of cement and water an ionic compound containing anions X.sup.n- whereby there are formed mixed crystals of the formula[Ca.sub.2 Al(OH).sub.6 ].sup.- [( m/n)X.sup.n- (1-m) Al(OH).sub.4.sup.- mAl(OH).sub.3 ; aq].sup.-Preferably X is NO.sub.2.sup.-, SO.sub.3.sup.2-, S.sub.2 O.sub.3.sup.2-, Fe(CN).sub.6.sup.3-, PO.sub.4.sup.3-, FE(CN).sub.6.sup.4-, MnO.sub.4 --, ClO.sub.3.sup.- or CrO.sub.4.sup.2-. The mixed crystals are new.

    Abstract translation: 在制造富含铝酸盐水泥的砂浆或混凝土中,其中将水泥与水混合并水化,然后允许其硬化,其改进包括向水泥和水的混合物中加入含有阴离子Xn的离子化合物,由此存在 形成式[Ca2Al(OH)6] - [(m / n)Xn-(1-m)Al(OH)4-mAl(OH)3)的混合晶体; aq] - 优选X为NO 2 - ,SO 32 - ,SO 2 - ,Fe(CN)63-,PO 43 - ,FE(CN)64-,MnO 4 - ,ClO 3 - 或CrO 42 - 。 混合晶体是新的。

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