Atomic absorptiometer and a metal specimen atomic vapor generation
apparatus used in the atomic absorotiometer
    1.
    发明授权
    Atomic absorptiometer and a metal specimen atomic vapor generation apparatus used in the atomic absorotiometer 失效
    原子吸收光谱仪和原子吸收测定仪中使用的金属试样原子蒸汽发生装置

    公开(公告)号:US5978082A

    公开(公告)日:1999-11-02

    申请号:US14069

    申请日:1998-01-27

    IPC分类号: G01N21/31 G01J3/42 G01N21/74

    CPC分类号: G01J3/42

    摘要: The object of this invention is to provide an atomic absorptiometer and a metal specimen atomic vapor generation apparatus used in the atomic absorptiometer, which enable a light absorption measurement based on the Zeeman effect highly capable of background correction and eliminate the need for the troublesome work of dismounting a magnet. For this purpose, the following configuration is employed. First, the specimen, hydrochloric acid, and sodium borohydride are delivered and mixed by the peristaltic pump 10 to produce a metallic hydride. The generated gas-liquid mixture solution is separated by the separator 12 into a specimen gas and liquids. The separated specimen gas is introduced into the heating section 30. Electricity is supplied from the power source 28 to the specimen heating section 30 where the specimen gas introduced is heated and separated into hydrogen and a specimen metal vapor to be measured. The specimen metal vapor is then introduced into the measuring section 34 arranged between magnetic poles of the magnet 32 where the metal vapor is subjected to the atomic absorptiometric analysis based on the Zeeman effect.

    摘要翻译: 本发明的目的是提供一种在原子吸收光谱仪中使用的原子吸收光谱仪和金属试样原子蒸汽发生装置,其能够基于能够进行背景校正的塞曼效应的光吸收测量,并且不需要麻烦的工作 拆下磁铁 为此,采用以下配置。 首先,将试样,盐酸和硼氢化钠通过蠕动泵10输送并混合,制成金属氢化物。 所产生的气液混合溶液被分离器12分离成样品气体和液体。 将分离的试样气体引入加热部30.从电源28向被加热的试样气体加热并分离为氢的试样加热部30供给被测定的试样金属蒸气。 然后将样品金属蒸气引入到测量部分34中,该测量部分34布置在磁体32的磁极之间,金属蒸气基于塞曼效应进行原子吸收分析。

    Atomic absorption spectrophotometer
    2.
    发明授权
    Atomic absorption spectrophotometer 有权
    原子吸收分光光度计

    公开(公告)号:US6020958A

    公开(公告)日:2000-02-01

    申请号:US238318

    申请日:1999-01-28

    IPC分类号: G01N21/31 G01N21/74

    CPC分类号: G01N21/3103

    摘要: An atomic absorption spectrophotometer possessing an electrical heating unit which includes a graphite tube for atomizing a sample by heating the sample; a light emitting unit for emitting measuring light and irradiating the atomized sample with the measuring light; a spectroscope unit for diffracting the measuring light passing the electrical heating unit and selecting the required wavelength component; a detection unit for detecting the quantity of the required wavelength component selected by the spectroscope unit; an input unit to input at least one of the wavelengths of the required wavelength component and the required heating temperature of the electrical heating unit; and a control unit for controlling the above units, which comprises a shading device provided at the propagation axis of the measuring light between the electrical heating unit and the detection unit, and which possesses a light transmitting unit, for restricting the quantity of the measuring light passing the electrical heating unit, with the area of the light transmitting unit being changeable; and wherein the area of the light transmitting unit in the shading device is changed according to the set measurement conditions.

    摘要翻译: 具有电加热单元的原子吸收分光光度计,其包括通过加热样品来雾化样品的石墨管; 用于发射测量光并用所述测量光照射所述雾化样品的发光单元; 用于衍射通过电加热单元的测量光并选择所需波长分量的分光器单元; 检测单元,用于检测由所述分光器单元选择的所需波长分量的量; 输入单元,用于输入所述电加热单元所需波长分量和所需加热温度的至少一个波长; 以及用于控制上述单元的控制单元,其包括设置在电加热单元和检测单元之间的测量光的传播轴上的遮光装置,并具有用于限制测量光量的光传输单元 通过电加热单元,光传输单元的区域是可变的; 并且其中遮光装置中的光发射单元的面积根据设定的测量条件而改变。

    Method and apparatus for resistance adjustment of thick film thermal
print heads
    6.
    发明授权
    Method and apparatus for resistance adjustment of thick film thermal print heads 失效
    厚膜热敏打印头的电阻调节方法和装置

    公开(公告)号:US4782202A

    公开(公告)日:1988-11-01

    申请号:US946968

    申请日:1986-12-29

    摘要: A method and an apparatus for adjusting the resistance value of a thermal head assembly. One voltage pulse or a set of voltage pulses of a preselected peak value are impressed on the heat generating resistor elements of the thermal head assembly. The resistance values of the resistor elements are then measured and compared with the predetermined target value. If the measured resistance values are above the target value, the resistor elements are subjected to another pulse or set of pulses having a peak value a little higher than the preceding one. Then, the resistance values are again measured and compared with the target value. Thus, the resistance values are decreased by successively impressing voltage pulses with the peak value thereof being increased little by little, until the resistance values become lower than the target value.

    摘要翻译: 一种用于调节热敏头组件的电阻值的方法和装置。 一个电压脉冲或一组预选峰值的电压脉冲被印在热敏头组件的发热电阻元件上。 然后测量电阻元件的电阻值并将其与预定目标值进行比较。 如果测量的电阻值高于目标值,则电阻元件经受另一个具有比前一个稍高的峰值的脉冲或脉冲集合。 然后,再次测量电阻值并与目标值进行比较。 因此,通过连续地施加电压脉冲,使电阻值逐渐增加,直到电阻值变得低于目标值,来降低电阻值。

    Method of cleaning a photo-mask
    7.
    发明授权
    Method of cleaning a photo-mask 失效
    清洁光罩的方法

    公开(公告)号:US4569695A

    公开(公告)日:1986-02-11

    申请号:US602519

    申请日:1984-04-20

    摘要: A photo-mask to be used in a light exposure step for manufacturing semiconductor devices is cleaned by wetting front and rear surfaces of the mask with a liquid, brushing the wetted surfaces with a pair of rotary brushes, wetting the brushed surfaces with an electrolytic solution containing sufficient electrolyte to substantially eliminate electrostatic charge from the surfaces, spraying and immersing the photo-mask in an organic liquid such as an alcohol, and then drying the photo-mask.

    摘要翻译: 在用于制造半导体器件的曝光步骤中使用的光掩模通过用液体润湿掩模的前表面和后表面来清洁,用一对旋转刷刷洗湿表面,用电解液润湿刷表面 含有足够的电解质以基本上消除表面的静电荷,将光掩模喷雾并浸入有机液体如醇中,然后干燥光掩模。

    Capillary electrophoresis apparatus
    10.
    发明授权
    Capillary electrophoresis apparatus 有权
    毛细管电泳仪

    公开(公告)号:US07883613B2

    公开(公告)日:2011-02-08

    申请号:US11806889

    申请日:2007-06-05

    IPC分类号: G01N27/453

    CPC分类号: G01N27/44721

    摘要: The present invention provides a capillary electrophoresis apparatus in which a capillary is easily attached to and detached from a migration medium filling unit without mixing impurities into the capillary. Mixture of impurities such as dust is also prevented when a capillary negative-electrode end is brought into contact with a sample stored in a vessel. Furthermore, temperature control is efficiently performed in the capillary. In the capillary electrophoresis apparatus, the whole of capillary array can be supported by grasping a grip portion by hand. A migration medium filling mechanism includes a slide mechanism which moves a polymer block with respect to a capillary head. The capillary electrophoresis apparatus includes a vessel in which a sample and a buffer can simultaneously be stored. Temperatures of the capillary and an irradiation and detection unit are controlled by a temperature control function provided in a thermostatic device.

    摘要翻译: 本发明提供了一种毛细管电泳装置,其中毛细管容易地连接到迁移介质填充单元并从迁移介质填充单元中分离而不将杂质混入毛细管中。 当毛细管负极端与存储在容器中的样品接触时,也可以防止诸如灰尘等杂质的混合物。 此外,在毛细管中有效地进行温度控制。 在毛细管电泳装置中,通过用手抓握把手部分可以支撑整个毛细管阵列。 迁移介质填充机构包括相对于毛细管头移动聚合物嵌段的滑动机构。 毛细管电泳装置包括可以同时存储样品和缓冲液的容器。 毛细管和照射和检测单元的温度由恒温装置中提供的温度控制功能控制。