RU167595U1 - Ditch check valve cuvette - Google Patents

Abstract

The utility model relates to the field of optical physics, in particular to hollow prisms, which are an integral part of spectrophotometers designed to study the structure and composition of various compounds, as well as the qualitative and quantitative determination of substances. A cuvette with a non-return valve on the lid is declared, containing a hollow prism without a single base, a rectangular fluoroplastic lid, characterized in that the check valve is located on the lid, which allows, without opening the lid, to add substances to the cuvette, preventing its contents from spilling, and work with liquids containing volatile compounds, minimizing their volatilization. The utility model is aimed at creating optimal conditions for preserving the contents of the cell when it is opened to change the concentration of the test solution by adding substances to it and working with liquids containing volatile compounds that minimize their volatilization. 3 ill.

Description

The utility model relates to the field of optical physics, in particular to hollow prisms, which are an integral part of spectrophotometers designed to study the structure and composition of various compounds, as well as the qualitative and quantitative determination of substances.

The analogue of “Cuvette for a spectrophotometer” is known [1], which is a hollow glass or quartz prism without a single base.

The disadvantage of the considered analogue is the high probability of spillage of the sample from the cell and the inability to work with liquids containing volatile compounds.

The known analogue is “Quartz cell, Ku-1 fluorescent with a plug” [2], which is a hollow glass or quartz prism without a single base. The hole in the cuvette has a circular shape and is closed by a fluorescent stopper, which ensures its tightness.

The disadvantage of the considered analogue is that when removing the tube tightly adjacent to the hole in the prism to change the concentration of the test solution by adding substances to it, there is a high probability of spilling the contents of the cuvette, as well as volatilization of volatile compounds contained in the test solution.

As a prototype, we have chosen a “Cuvette with a fluoroplastic lid” [3], which is a hollow glass or quartz prism without a single base. The hole in the cell has a rectangular shape and is closed by a fluoroplastic lid, ensuring its tightness.

The disadvantage of the considered analogue is that when removing the cap tightly attached to the hole in the prism to change the concentration of the test solution by adding substances to it, there is a high probability of spilling the contents of the cuvette, as well as volatilization of volatile compounds contained in the test solution.

The objective of the technical solution is to create optimal conditions for preserving the contents of the cell when it is opened to change the concentration of the test solution by adding substances to it and working with liquids containing volatile compounds that minimize their volatilization.

The problem is solved due to the fact that the "cuvette with a valve on the lid", containing a hollow prism without a single base, a fluoroplastic lid of a rectangular shape, differs in that there is a check valve on the lid for adding substances to the cuvette.

There is a causal relationship between the set of essential features of the claimed object and the achieved technical result, namely, the presence of a check valve on the fluoroplastic lid of the cuvette allows, without opening the lid, adding substances to the cuvette, preventing the spillage of its contents, and working with liquids containing volatile compounds minimizing their volatilization.

The technical solution allows you to quickly, without opening the lid, add substances to the cuvette, preventing the spillage of its contents, and work with liquids containing volatile compounds, minimizing their volatilization.

The technical nature of the proposed technical solution is illustrated by drawings, in which:

FIG. 1. Front view of a cuvette with a non-return valve on the lid.

FIG. 2. Side view of a cell with a check valve on the lid.

FIG. 3. Top view of the cuvette with check valve on the lid.

The proposed "Cuvette with check valve on the lid" consists of: a hollow prism without a single base - 1; fluoroplastic covers of rectangular shape - 2; check valve - 3.

The technical solution described above for the "Cuvette with check valve on the lid" is as follows:

1. The cuvette is removed from the spectrophotometer.

2. A pipette is used to add or remove liquid from the cap through a valve on the cap.

3. The cuvette is placed in a spectrophotometer.

Feasibility Study

When applying our proposed technical solution, “A cuvette with a check valve on the lid” due to the presence of a check valve on the lid, the contents of the cuvette cannot be spilled when the concentration of the test solution is changed by adding substances to it and volatiles volatilize when working with liquids containing them the speed of preparation for the study of the next test is accelerated, the accuracy of the study increases and labor productivity increases by 2.6 times, which, of course, reduces the cost of the spectrophotome Rhee.

Information sources

1. Ditch for the spectrophotometer [Electronic resource] // Website www.termoprom.ru. - “ThermoProm”, [2002-2015]. - Access mode: http://www.termoprom.ru/opticheskie-kvarcevye-kjuvety-dlja-spektrofotometra.html free. - Zagl. from the screen. (01/10/2015).

2. Quartz cell, ku-1 fluorescent with plug [Electronic resource] // Website www.ibp-ran.ru. - “Institute of Biological Instrumentation RAS”, [1997-2016]. - Access mode: http://optika-ibp-ran.ru. free. - Zagl. from the screen. (01/10/2015).

3. A cuvette with a fluoroplastic lid [Electronic resource] // Website www.analytic-lab.ru. - “Online store of laboratory equipment Analytic Lab, [2013]. - Access mode: http://analytic-lab.ru/product?id=1221 free. - Zagl. from the screen. (01/10/2015).

Claims (1)

A cuvette with a check valve on the lid, containing a hollow prism without one base, a fluoroplastic lid of a rectangular shape, characterized in that a check valve is located on the lid for adding substances to the cuvette.

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