CS232101B1 - A method for determining chemical elements in solutions and suspensions - Google Patents
A method for determining chemical elements in solutions and suspensions Download PDFInfo
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- CS232101B1 CS232101B1 CS805847A CS584780A CS232101B1 CS 232101 B1 CS232101 B1 CS 232101B1 CS 805847 A CS805847 A CS 805847A CS 584780 A CS584780 A CS 584780A CS 232101 B1 CS232101 B1 CS 232101B1
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Abstract
Vynález sa týká spósobu stanovenia chemických prvkov v roztokoch a suspenziách metodou selektívnej absorpcie nízkoenergetického žiarenia gama a rontgenového žiarenia. Podstata spočívá v spósobe stanovenia prvkov nedestruktivně a bezdotykové v transportných potrubiach, zásobníkoch alebo vzorkovacích zariadeniach metodou selektívnej absorpčnej analýzy za použitia rádionuklidových zdrojov, scintilačných detektorov a selektivizačných filtrov v spojení s meracou a vyhodnocovacou jednotkou. Vo vynáleze obsiahnutý sposob stanovenia je vhodný aj pre analytická kontrolu cínu, niklu, médi, zinku a iných prvkov pri ich elektrolytickej výrobě, ďalej pri pokovovaní plechov a iných materiálov.The invention relates to a method of determining chemical elements in solutions and suspensions by the method of selective absorption of low-energy gamma radiation and X-ray radiation. The essence consists in the non-destructive and contactless determination of elements in transport pipelines, reservoirs or sampling devices by the method of selective absorption analysis using radionuclide sources, scintillation detectors and selectivity filters in connection with a measuring and evaluation unit. The method of determination contained in the invention is also suitable for the analytical control of tin, nickel, copper, zinc and other elements during their electrolytic production, and also during the plating of sheets and other materials.
Description
Vynález sa týk® sposobu stanjeveniancheňi mických prvkov >v. roztokochxa. suspenziáchb metódou selektívnej absorpcie nízkoenergetického fotonového žiarania. iBoiížitiaisslekr tívnej absorpcie umožmžjeu jnedeštEuktítutrn· a bezdotykové stanovenie chemických prvkov a ictnzlúčenínikontinuálnym alebo diskontinuálnym', sposobom priamo v transportných potrubiach, zásobníkoch alebo vzorkovniciach.The invention relates to a method for the determination of stent elements. roztokochxa. suspensions by the selective absorption method of low energy photon radiation. The use of selective absorption allows for the immediate and non-contact determination of chemical elements and the direct or discontinuous method of detection directly in transport ducts, containers or sample containers.
Dosiaf používané konvenčně analytické metódy prevažne titračné, vyžadujú odběr, připadne úpravu vzorky a chemickú reakciu analyzovanej látky a činidla. Nukleárně absorpčné metódy umožňujú bezdotykovú analýzu roztokov i suspepzií v potrubiach i zásobníkoch. Vysokoenergetické zdroje o energii poriadku MeV áko je 60Co, majú však obmedzené analytické použitie, keďže velkost absorpcie je určená pomerom atómo2 vého a nukleónového čísla ——,Conventional analytical methods used so far, predominantly titration, require sampling, sample preparation, and chemical reaction of the analyte and reagent. Nuclear absorption methods allow non-contact analysis of solutions and suspensions in pipes and containers. High energy sources with an order of energy of MeV as 60 Co, but have limited analytical use, since the absorption rate is determined by the ratio of atomic to nucleon numbers ——,
A ’ ktorý je výrazné odlišný od ostatných prvkov iba· u. vodáka,!; kde. oje rovný 1; kýmvtt ostatných prvkov sa pohybuje v rozmedzí 0,4 až 0,5. Metóda je teda výhodná iba na stanovenie vodíka.And that’s significantly different from other elements only. waterman,!; where. o is equal to 1; while other elements range from 0.4 to 0.5. The method is therefore advantageous only for the determination of hydrogen.
Nedostatky používaných metód odstraňuje postup podfa vynálezu, ktorého podstata spočívá v sposobe stanovenia chemických prvkov v roztokoch a suspenziách nedeštruktívne'® bezdotykové·v transportných potrubiach, zásobníkoch a vzorkovacích zariadeniach, vyznačený tým, že cez analyzovaný materiál prechádza nízkoenergetické fotónové žiarenie s energiou do 60 keV, pričom sa ča ať/žiarenia v zásvislosti· na kvalitatívnoHi a kvaniitatívnom zložení · analy-1 zovanej látky absorbuje v lanafyzovanom ma- ’ teriáli. a neabsorbovaná čásť žiarenia-iselektivtžovaná) iQez’,< hrotový absorpčný filter s absorpčnou·· charakteristikou prislúchajúcou stanovovanému prvku, sa vedie na detektor žiarenia, v ktorom :induknje..analytický signál·, úměrný <množstvu stanovenej. zložky.The method according to the invention is based on the method of determining chemical elements in non-destructive contactless solutions and suspensions in transport pipelines, containers and sampling devices, characterized in that low energy photon radiation with energy up to 60 keV passes through the analyzed material. while cha matter / radiation zásvislosti · the kvalitatívnoHi and kvaniitatívnom composition analyzed · 1 ther- moplastic substances absorbed in lanafyzovanom ma- 'rial. and an unabsorbed portion of the radiation-iselectively coupled, a spike absorption filter having an absorption characteristic pertaining to the element to be measured, is applied to a radiation detector in which: the inductive signal is proportional to the amount determined. components.
Výhodou navrhovaného; sposobu je nedeštruktívne selektívne stanovenie íjednotlivých chemických prvkov, alebo Určitých i zložiek v analyzovanej látke, umožňujúcě získat. (analytiGkú informáciu bezdotykové aj cez relativné hrubé steny transportného potrubia, připadne zásobnikov. Možnosť kontinuálně j analýzy umožňuje sústavnú kontroen lu výrobného procesu a automatizáciu ,analyticko-kontroiného procesu.The advantage of the proposed; The method is a non-destructive selective determination of the individual chemical elements or certain components in the analyte to be recovered. The analytical information is non-contacting despite the relative thick walls of the transport piping and / or storage tanks.
Konkrétným príkládom vo vynáleze obsi: ahnutého spósobu je stanovenie cínu v roztokoch a suspenziách, používaných pri výrohexpoclnovanýoh plechov. Fotónové žiare-t.' nie z rádiomitiklido.vého zdroja 147Pm/Sm prechádza polyetylénovou trubkou o hrúbke steny 8 mm a priemere 76 mm, cez ktorú preteká roztok síranu cínatého. Neabsorbované žiarenie sa vedie cez hrotový absorpčný filter s obsahom céru na scintilačný detektor fotonového žiarenia, napojený na komerčně · vyrábanú: meraciu a vyhodnocovaciu jednotku. Pri obsahu síranu cínatého 30 g — 60 g v litri roztoku sa dosahuje citlivosť stanovenia 0,01 g.Concrete examples of the invention OBSi: ahnutého way the determination of tin in solutions and suspensions used in výrohexpoclnovanýoh sheets. Photon glow - t. ' not from a 147 Pm / Sm radio-radiated source passes through a polyethylene tube with a wall thickness of 8 mm and a diameter of 76 mm through which a stannous sulfate solution flows. Unabsorbed radiation is passed through TOS absorption filter containing cerium the scintillation detector photon radiation, connected to commercially produced ·: measuring and evaluation unit. For a stannous sulphate content of 30 g - 60 g per liter of solution, a sensitivity of 0,01 g is obtained.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS805847A CS232101B1 (en) | 1980-08-27 | 1980-08-27 | A method for determining chemical elements in solutions and suspensions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS805847A CS232101B1 (en) | 1980-08-27 | 1980-08-27 | A method for determining chemical elements in solutions and suspensions |
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| Publication Number | Publication Date |
|---|---|
| CS584780A1 CS584780A1 (en) | 1984-06-18 |
| CS232101B1 true CS232101B1 (en) | 1985-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CS805847A CS232101B1 (en) | 1980-08-27 | 1980-08-27 | A method for determining chemical elements in solutions and suspensions |
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| CS (1) | CS232101B1 (en) |
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1980
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| Publication number | Publication date |
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| CS584780A1 (en) | 1984-06-18 |
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