Spectrometer attachments and phosphorescence decay measurement

    公开(公告)号:US06795181B2

    公开(公告)日:2004-09-21

    申请号:US10621648

    申请日:2003-07-17

    CPC classification number: G01J3/4406 G01J3/0275 G01J3/0291 G01J3/28

    Abstract: A spectrometry instrument with exchangeable accessories (34, 48, 50, 52) providing, for example, different sample presentation facilities. The accessories include a manually operable cam-lock facility (54, 68) for quick and easy attachment of an accessory to the instrument. The instrument also includes an electrical circuit (86-90), which is completed by a circuit portion (100) in an accessory when the accessory is attached to the instrument, for generating a unique identifying voltage (94) to thereby identify that accessory. This allows for automatic loading in a controlling computer of programs for setting up and running the instrument for measurement regimes using that accessory. The spectrometry instrument is preferably a spectrophotometer used for phosphorescence decay measurements in which sequential phosphorescence emission measurements data from each of a number of excitation cycles applied to a sample are taken and then reassembled into a correct time sequence to define a phosphorescence decay characteristic for the sample, that is, measured data points from a second (and subsequent) excitation cycle are interleaved with those from a first excitation cycle. This significantly reduces the time for establishing a phosphorescence decay characteristic.

    Spectrometer attachments and phosphorescence decay measurement
    2.
    发明授权
    Spectrometer attachments and phosphorescence decay measurement 失效
    光谱仪附件和磷光衰减测量

    公开(公告)号:US06657720B1

    公开(公告)日:2003-12-02

    申请号:US09831244

    申请日:2001-07-02

    Applicant: Martin Kaselis

    Inventor: Martin Kaselis

    Abstract: A spectrometry instrument, e.g., for time-resolved spectroscopy, has quick-change exchangeable accessories (48, 50, 52) which are manually attached via rotation of a camming means to engage and lock a stud member. A circuit element in each accessory (48, 50, 52), such as a resistor or a configured pin connection, acts to generate a voltage in the instrument that uniquely identifies which accessory is attached. A method for measuring a phosphorescence decay characteristic includes applying an excitation pulse to a sample (34); obtaining emission intensity data for a sequence of time delays following the excitation pulse; repeating for at least one further excitation pulse using a different sequence of time delays; and interleaving the data from different excitation pulses to construct a decay characteristic.

    Abstract translation: 例如用于时间分辨光谱的光谱仪器具有快速可更换的附件(48,50,52),其通过凸轮装置的旋转手动附接以接合和锁定螺柱构件。 每个附件(48,50,52)中的电路元件(诸如电阻器或配置的引脚连接)用于在仪器中产生唯一地识别哪个附件附接的电压。 一种测量磷光衰变特性的方法包括向样品(34)施加激发脉冲; 获得激励脉冲之后的一系列时间延迟的发射强度数据; 使用不同的时间延迟序列重复至少一个另外的激励脉冲; 并且对来自不同激励脉冲的数据进行交织以构成衰减特性。

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