CS251977B1 - Apparatus for determining photoreake quantum yields - Google Patents

Apparatus for determining photoreake quantum yields Download PDF

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Publication number
CS251977B1
CS251977B1 CS854223A CS422385A CS251977B1 CS 251977 B1 CS251977 B1 CS 251977B1 CS 854223 A CS854223 A CS 854223A CS 422385 A CS422385 A CS 422385A CS 251977 B1 CS251977 B1 CS 251977B1
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CS
Czechoslovakia
Prior art keywords
cuvette
quantum yields
determining
reaction mixture
photoreake
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CS854223A
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Czech (cs)
Slovak (sk)
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CS422385A1 (en
Inventor
Anton Gaplovsky
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Anton Gaplovsky
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Priority to CS854223A priority Critical patent/CS251977B1/en
Publication of CS422385A1 publication Critical patent/CS422385A1/en
Publication of CS251977B1 publication Critical patent/CS251977B1/en

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Abstract

Zariadenie na stanovenie kvantových výťažkov fotoreakeií je určené pre kvantitativné práce v oblasti fotochémie a pozostáva zo světelného zdroja s optikou a bloku, v ktorom je rovinné zrkadlo, filter a kyveta s reakčnou zmesou. Kyveta je ponořená do vody v ultrazvukovej váni, čím je zabezpečené dokonalé premiešanie reakčnej zmesi. \ Na monitorovanie svetelnej intenzity bol použitý svetlovod a fotoelement.The device for determining quantum yields of photoreactions is intended for quantitative work in the field of photochemistry and consists of a light source with optics and a block containing a plane mirror, a filter and a cuvette with the reaction mixture. The cuvette is immersed in water in an ultrasonic bath, which ensures perfect mixing of the reaction mixture. A light guide and a photoelement were used to monitor the light intensity.

Description

Vynález sa týká zariadenia na stanovenie kvantových výťažkov fotoreakclí s možnosťou miešania reakčnej zmesi ultrazvukovou energiou.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to an apparatus for determining quantum yields by photoreaction with the possibility of mixing the reaction mixture with ultrasonic energy.

Doteraz používané aparatúry na stanovenie kvantových výťažkov fotoreakcií využívajú na miešanie reakčnej zmesi magnetické miešadlo alebo nútený oběh reakčnej zmesi. Vzhladom na tvar kyviet, v ktorých je reakčná zmes, tieto sposoby miešania nezaručujú dostatočnú a rýchlu turbulenclu roztoku, čo vedie k tvorbě nežiadúcich produktov, vytváraniu polymérnych filmov na stěnách kyvety a tým k získaniu nepřesných hodnot kvantových výťažkov.The apparatus used to determine the quantum yields of photoreactors used so far utilize a magnetic stirrer or forced circulation of the reaction mixture for mixing the reaction mixture. Because of the shape of the cuvettes in which the reaction mixture is formed, these mixing methods do not guarantee sufficient and rapid turbulence of the solution, resulting in the formation of undesirable products, the formation of polymeric films on the cuvette walls, and thus inaccurate quantum yield values.

Tieto nedostatky doteraz konstruovaných zariadení na stanovenie kvantových výťažkov odstraňuje zariadenie podta vynálezu, ktorého podstata spočívá v tom, že zdroj světla pozostávajúci z vysokotlaké] ortuťovej výbojky je prostredníctvom optickej sústavy spojený s blokom, v ktorom sa nachádza rovinné zrkadlo, ktoré tvoří 45° uhol s optickou osou, interferenčný filter, křemenná kyveta a svetlovod, ktorý je připojený k fotočidlu, pričom časť bloku s kyvetou je ponořená vo vodě v ultrazvukové] váni.These drawbacks of the previously constructed quantum extracting apparatus are eliminated by the device of the invention, which consists in that the light source consisting of a high pressure mercury lamp is connected to the block in which the planar mirror forms a 45 ° angle with the optical system via an optical system. an optical axis, an interference filter, a quartz cuvette, and a light guide connected to the photoconductor, wherein a portion of the cuvette block is immersed in the ultrasonic water.

Aparaturu podía vynálezu možno využit pri kvantitativných prácach vo fotochémii. Výhodou tejto aparatúry je, že sa potláča vznik vedlajších produktov reakcií a zamedzovaniu tvorby polymérnych filmov na stěnách reaktora.The apparatus according to the invention can be used for quantitative work in photochemistry. The advantage of this apparatus is that the formation of byproducts of the reaction is avoided and the formation of polymeric films on the reactor walls is avoided.

Na priloženom výkrese je znázorněná aparatúra na stanovenie kvantových výťažkov podía vynálezu.The accompanying drawing shows an apparatus for determining quantum yields according to the invention.

Světlo emitované světelným zdrojom 6 po odraze na rovinnom zrkadle 1 dopadá na interferenčný filter 2, světlo, ktorého vlnová dížka je daná priepusťou filtra, sa absorbuje vo valcovej kremennej kývete 3 reakčnou zmesou. Kyveta je ponořená do vody v ultrazvukovej váni. Teplota vody je definovaná. Na monitorovanie svetelnej intenzity je použitý svetlovod 4 a fotočidlo 5.The light emitted by the light source 6 after reflection on the planar mirror 1 impinges on the interference filter 2, the light whose wavelength is given by the filter permeate is absorbed in the cylindrical quartz rock by the reaction mixture. The cuvette is immersed in the ultrasonic water. The water temperature is defined. A light guide 4 and a sensor 5 are used to monitor the light intensity.

Claims (1)

PREDMETSUBJECT Zariadenie na stanovenie kvantových výťažkov fotoreakcií, vyznačujúce sa tým, že je tvořené zdrojom světla (6) pozostávajúcim z vysokotlakej ortuťovej výbojky, ktorý je prostredníctvom optickej sústavy spojený s blokom, v ktorom sa nachádza rovinné zrkadlo (1), ktoré tvoří 45° uhol s optickou osou, interferenčný filter (2j, křemenná kyveta (3j a svetlovod (4), ktorý je připojený k fotočidlu, pričom časť bloku s kyvetou je ponořená vo vodě v ultrazvukovej váni.Apparatus for determining quantum yields of photoreaction, characterized in that it consists of a light source (6) consisting of a high-pressure mercury lamp, which is connected via an optical system to a block containing a plane mirror (1) which forms a 45 ° angle with an optical axis, an interference filter (2j), a quartz cuvette (3j and a light guide (4) which is connected to the photo sensor, wherein part of the cuvette block is submerged in water in an ultrasonic bath. í list výkresovsheet of drawings
CS854223A 1985-06-12 1985-06-12 Apparatus for determining photoreake quantum yields CS251977B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CS854223A CS251977B1 (en) 1985-06-12 1985-06-12 Apparatus for determining photoreake quantum yields

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS854223A CS251977B1 (en) 1985-06-12 1985-06-12 Apparatus for determining photoreake quantum yields

Publications (2)

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CS422385A1 CS422385A1 (en) 1986-12-18
CS251977B1 true CS251977B1 (en) 1987-08-13

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CS422385A1 (en) 1986-12-18

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