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Optical measurement apparatus for trace liquid sample

一种微量液体、光学测量的技术，应用在测量装置、颜色/光谱特性测量、通过光学手段进行材料分析等方向，能够解决花费时间和劳力、生产量低、无法测量等问题，达到提高效率的效果

Active Publication Date: 2008-12-31
SHIMADZU SEISAKUSHO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since such an operation needs to be manually performed each time after the measurement of one sample is completed, it takes a lot of time and labor.
Furthermore, since it is impossible to perform measurement while automatically changing various samples, there is also a problem of low throughput.

Method used

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  • Optical measurement apparatus for trace liquid sample
  • Optical measurement apparatus for trace liquid sample
  • Optical measurement apparatus for trace liquid sample

Examples

Experimental program
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Embodiment Construction

[0035] Next, an ultraviolet-visible spectrophotometer, which is an embodiment of the optical measuring device for a trace liquid sample of the present invention, will be described with reference to the drawings. figure 1 It is a side view showing a schematic configuration of the ultraviolet-visible spectrophotometer of this embodiment.

[0036] figure 1Among them, on the disc-shaped sample platform 10 that extends approximately horizontally, the disc-shaped sample plate (equivalent to the support mechanism in the present invention) that is formed with 4 sample holding parts 12 for holding the liquid sample is installed. ) 11, the sample plate 11 is driven integrally with the sample table 10 by a drive mechanism (corresponding to the movement mechanism of the present invention) including a motor not shown, and is rotatable in a substantially horizontal plane centered on the rotating shaft 13. Among them, openings are respectively formed below the four sample holding parts 12...

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PUM

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Abstract

In a spectrophotometer for measuring transmitted light of a trace liquid sample, four sample holding portions (12) are provided on a disklike sample plate (11) while spaced apart by 90 DEG , and then the sample plate (11) is rotary driven to move each sample holding portion (12) sequentially to a sample supply position (U1), a measuring position (U2), a wiping position (U3) and a waiting position (U4). A trace of liquid sample is dripped into a groove in the sample holding portion (12) at the sample supply position (U1), a window plate (22) is lowered to above that groove at the measuring position (U2) and transmitted light is measured after the optical path length is determined, and the liquid sample is absorbed and removed through contact with a cleaning pad (26) while the sample holding portion (12) moves from the measuring position (U2) to the waiting position (U4).; Liquid sample adhering to the window plate (22) is also wiped off by other pad. Since wiping work of measured sample is automated, throughput of measurement can be enhanced.

Description

technical field [0001] The present invention relates to an optical measurement device for measuring the transmitted light by irradiating light to a liquid sample, and more particularly to an optical measurement device such as a spectrophotometer for measuring the transmission characteristics of a small amount of liquid sample. Background technique [0002] In spectrophotometers such as ultraviolet-visible spectrophotometers, when measuring transmission characteristics such as transmittance or absorbance of liquid samples, square or cylindrical glass cuvettes (Cuvette cells) that contain liquid samples are generally used. ). A general glass cuvette has an internal volume of several mL or more, and it is necessary to prepare a sufficient amount of liquid sample to fill it up. [0003] In recent years, ultraviolet-visible spectrophotometers have been widely used in biochemical fields such as quantification of proteins and DNA. In this case, the amount of liquid samples to be a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/03G01N21/11G01N21/13G01N21/27
CPCG01N21/253G01N35/025G01N2021/035G01N2021/0353G01N2021/115G01N2021/135
Inventor 佃康郎
Owner SHIMADZU SEISAKUSHO CO LTD
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