Spectrophotometer Solid Sample Holder
A spectrophotometer and sample holder technology, applied in the field of chemical analysis, can solve the problems of sample analysis of different sizes, inapplicability, poor accuracy, etc., and achieve the effects of simple structure, convenient operation and accurate analysis accuracy
Active Publication Date: 2015-07-29
STATE NUCLEAR POWER PLANT SERVICE
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Problems solved by technology
With the continuous development of science and technology, the spectrophotometer is not only limited to the analysis of liquid samples, but also the analysis of the light transmission / absorption of various solid samples. Unlike liquid samples, solid samples cannot be achieved by accumulating the number of samples. Through the samples, relevant companies have developed various solid sample holders, such as Chinese patent No. 20072007149.7 (a sample holder), 201020293270.3 (a solid sample holder for a spectrophotometer), etc. Although these sample holders can make the optical path just pass through the sample , the structure is also relatively simple, but it cannot be applied to the analysis of samples of various shapes and sizes, and the accuracy is not good
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[0010] The present invention will be further described below with reference to the accompanying drawings.
[0011] Such as figure 1 As shown, in this embodiment, the metal body 1 is processed from a commercially available gold ingot, and its external dimensions match the size of the sample chamber of the spectrophotometer used, that is, it only needs to be able to fit into the chamber. If the size of the cabin of the spectrophotometer is 14×12×12mm, the size of the metal body should be 12×10×10mm. First, one side of the metal body 1 is mechanically processed, such as cutting one layer of slots and one layer of slots to form through slots 3 . In this embodiment, there are four layers of slots and the cross-sections are square, respectively 10mm×10mm, 8mm×8mm, 6.5mm×6.5mm, 5mm×5mm, and the thickness of each side of each square slot is the same , the sides are parallel. In this way, a tower-shaped through-trough 3 is formed. The circular through hole 4 is opened at the end of...
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The invention relates to a solid sample bracket of a spectrophotometer. The solid sample bracket comprises a metal body, a through slot formed by multiple layers of square slot holes and round through holes with different sectional areas on the side surface of the metal body and threaded holes, wherein the centers of the square slot holes and the centers of the round through holes are of concentric structures; semicircular openings are formed on the two walls of each square slot hole; the threaded holes are formed on the two sides of the through slot and are symmetrical; and the metal body is matched with a sample chamber of the spectrophotometer in overall dimensions. The solid sample bracket of a spectrophotometer provided by the invention is suitable for solid samples with various dimensions and shapes; and the sample bracket has a simple structure and high integration level and is applicable to the solid samples of a large range.
Description
technical field [0001] The invention relates to a sample holder for a spectrophotometer, in particular to a sample holder for reading and analyzing the light transmission / absorption of a solid sample by a spectrophotometer, and belongs to the field of chemical analysis. Background technique [0002] When using spectrophotometry, it is equipped with a sample holder. The sample holder is used to fix the sample, so that the light path can accurately pass through the sample, so as to realize the reading of the light flux / absorbance of the spectrophotometer. Because the spot size of the spectrophotometer is small, it is essential to use the sample holder of the spectrophotometer. At present, the application of the spectrophotometer is mostly for the concentration analysis of liquid samples. The sample holder used is a liquid sample pool, the sample pool Just put it into the observation chamber of the spectrophotometer. At the same time, inject a sufficient amount of liquid sampl...
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IPC IPC(8): G01N21/01
Inventor 乌晓燕徐伟李玉鸣钟志民
Owner STATE NUCLEAR POWER PLANT SERVICE