Test device and method for its use
    2.
    发明授权
    Test device and method for its use 失效
    测试装置及其使用方法

    公开(公告)号:US4361537A

    公开(公告)日:1982-11-30

    申请号:US177281

    申请日:1980-08-11

    CPC分类号: G01N33/558

    摘要: A test device for determining a characteristic of a sample, particularly for determining substances in fluid samples. The device comprises a strip element which is composed of a material capable of transporting a developing fluid therealong by capillarity and which has a portion at a predetermined location on the strip element for receiving the test sample and portions at predetermined locations on the strip element incorporated with reagent means for providing a detectable response sensitive to the characteristic under determination. The beginning end portion of the strip element is immersed in the developing fluid which, as a result, traverses the length on the strip element, thereby promoting appropriate contact between the test sample and the reagent means resulting in the disposition of a detectable response at a predetermined location on the strip element, which response is a function of the characteristic under determination. The test device is particularly suited for performing binding assays, in particular those wherein a radioisotope is used as a label, such as radioimmunoassays.

    摘要翻译: 一种用于确定样品特性的测试装置,特别是用于确定流体样品中的物质。 该装置包括条状元件,该条形元件由能够通过毛细管状运送显影流体的材料组成,并且该条形元件具有用于接收测试样品的带状元件上的预定位置处的部分, 用于提供对确定特性敏感的可检测响应的试剂装置。 带状元件的起始端部浸入显影液中,结果是横穿带状元件上的长度,从而促进了测试样品和试剂装置之间的适当接触,导致在 在条形元件上的预定位置,该响应是确定特性的函数。 测试装置特别适于进行结合测定,特别是其中放射性同位素用作标记的那些,例如放射免疫测定。

    Process for removing fine particles from a powder
    3.
    发明授权
    Process for removing fine particles from a powder 失效
    从粉末中除去细颗粒的方法

    公开(公告)号:US5066387A

    公开(公告)日:1991-11-19

    申请号:US506937

    申请日:1990-04-09

    IPC分类号: B03B1/04 B03D3/00 C01F7/02

    CPC分类号: B03D3/00 B03B1/04 C01F7/02

    摘要: A process for removing finer than uniform size particles from a powder in a container including the steps of suspending the finer particles in a liquid rinse containing a charged compound such as a quanternary ammonium compound to reduce the static attraction of the finer particles from being bound to larger particles allowing the large particles to settle and decanting the suspensed finer particles in the liquid.

    摘要翻译: 一种用于从容器中的粉末中除去比均匀尺寸的颗粒更细的方法,包括将细颗粒悬浮在含有带电化合物例如季铵化合物的液体冲洗液中以减少更细颗粒的静电吸引的步骤 更大的颗粒允许大颗粒沉淀并倾析液体中悬浮的更细的颗粒。

    Test device and method for its use
    4.
    发明授权
    Test device and method for its use 失效
    测试装置及其使用方法

    公开(公告)号:US4235601A

    公开(公告)日:1980-11-25

    申请号:US3076

    申请日:1979-01-12

    摘要: Test device for determining a characteristic of a sample, particularly for determining substances in fluid samples. The device comprises a strip element which is composed of a material capable of transporting a developing fluid therealong by capillarity and which has a portion at a predetermined location on the strip element for receiving the test sample and portions at predetermined locations on the strip element incorporated with reagent means for providing a detectable response sensitive to the characteristic under determination. The beginning end portion of the strip element is immersed in the developing fluid which, as a result, traverses the length of the strip element, thereby promoting appropriate contact between the test sample and the reagent means resulting in the disposition of a detectable response at a predetermined location on the strip element, which response is a function of the characteristic under determination. The test device is particularly suited for performing binding assays, in particular those wherein a radioisotope is used as a label, such as radioimmunoassays.

    摘要翻译: 用于确定样品特性的测试装置,特别是用于确定流体样品中的物质。 该装置包括条状元件,该条形元件由能够通过毛细管状运送显影流体的材料组成,并且该条形元件具有用于接收测试样品的带状元件上的预定位置处的部分, 用于提供对确定特性敏感的可检测响应的试剂装置。 带状元件的起始端部浸入显影液中,结果横穿带状元件的长度,从而促进了测试样品和试剂装置之间的适当接触,导致在 在条形元件上的预定位置,该响应是确定特性的函数。 测试装置特别适于进行结合测定,特别是其中放射性同位素用作标记的那些,例如放射免疫测定。

    Test device
    5.
    发明授权
    Test device 失效
    测试装置

    公开(公告)号:US4094647A

    公开(公告)日:1978-06-13

    申请号:US701762

    申请日:1976-07-02

    摘要: Test device for determining a characteristic of a sample, particularly for determining substances in fluid samples. The device comprises a strip element which is composed of a material capable of transporting a developing fluid therealong by capillarity and which has a portion at a predetermined location on the strip element for receiving the test sample and portions at predetermined locations on the strip element incorporated with reagent means for providing a detectable response sensitive to the characteristic under determination. The beginning end portion of the strip element is immersed in the developing fluid which, as a result, traverses the length of the strip element, thereby promoting appropriate contact between the test sample and the reagent means resulting in the disposition of a detectable response at a predetermined location on the strip element, which response is a function of the characteristic under determination. The test device is particularly suited for performing binding assays, in particular those wherein a radioisotope is used as a label, such as radioimmunoassays.

    摘要翻译: 用于确定样品特性的测试装置,特别是用于确定流体样品中的物质。 该装置包括条状元件,该条形元件由能够通过毛细管状运送显影流体的材料组成,并且该条形元件具有用于接收测试样品的带状元件上的预定位置处的部分, 用于提供对确定特性敏感的可检测响应的试剂装置。 带状元件的起始端部浸入显影液中,结果横穿带状元件的长度,从而促进了测试样品和试剂装置之间的适当接触,导致在 在条形元件上的预定位置,该响应是确定特性的函数。 测试装置特别适于进行结合测定,特别是其中放射性同位素用作标记的那些,例如放射免疫测定。

    Home ovulation test kit and method
    6.
    发明授权
    Home ovulation test kit and method 失效
    家庭排卵试验箱和方法

    公开(公告)号:US5211182A

    公开(公告)日:1993-05-18

    申请号:US781842

    申请日:1991-10-23

    IPC分类号: A61B10/00 A61B17/00

    摘要: A testing kit and method for determining the day of ovulation in a woman who has menstruated having a plurality of test assemblies each with an upper chamber, a lower chamber in fluid communication with the upper chamber separated from the upper chamber by a screen member, a saliva-absorbable chewable plug which when chewed by the user can be compressed against the screen member to express saliva into the lower chamber which contains a reagent which produces a color change, the intensity of which is proportional to the concentration of glucose in the saliva wherein a plurality of such test assemblies are utilized one on each of successive days for determination of the peak color intensity on the day that the saliva has the greatest concentration of glucose to allow for computation from this peak day of the date of ovulation of the woman.

    摘要翻译: 一种用于确定月经中具有多个测试组件的女性的排卵日的测试套件和方法,每个测试组件均具有上腔室,与上腔室流体连通的下腔室通过屏幕构件分离, 当咀嚼使用者咀嚼的唾液可吸收的可咀嚼塞子可以被压在屏幕构件上以将唾液表达到下腔室中,所述下腔室含有产生颜色变化的试剂,所述试剂的强度与唾液中葡萄糖的浓度成比例,其中 多个这样的测试组合在连续的每一天中被使用,以确定唾液具有最高葡萄糖浓度的那一天的峰值颜色强度,从而允许从女性的排卵日期开始计算。