CS205642B1 - Coulombometer semicell for determination of the contents of the main component of reference materials - Google Patents
Coulombometer semicell for determination of the contents of the main component of reference materials Download PDFInfo
- Publication number
- CS205642B1 CS205642B1 CS880278A CS880278A CS205642B1 CS 205642 B1 CS205642 B1 CS 205642B1 CS 880278 A CS880278 A CS 880278A CS 880278 A CS880278 A CS 880278A CS 205642 B1 CS205642 B1 CS 205642B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- reference materials
- main component
- determination
- chamber
- coulombometer
- Prior art date
Links
- 239000012925 reference material Substances 0.000 title claims description 4
- 239000003792 electrolyte Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 7
- 238000003869 coulometry Methods 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 description 5
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 229920001817 Agar Polymers 0.000 description 2
- 239000008272 agar Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Description
Vynález sa týká coulometrického poločlánku na velmi přesné stanovenie obsahu hlavnej zložky referenčných materiálov vysokej čistoty.The invention relates to a coulometric half-cell for very accurate determination of the content of the main component of high purity reference materials.
Požiádavka uiinimálných strát stanovenej látky, ako aj jej znečistenia produktem! elektrolýzy na pomocnéJ elektróde, bola predmetom niekolkýoh návrhov na zlepšenú konštrukoiu coulometrického článku. Princip protiprúdneho usporiadania elektrod použil prvýkrát Eckeldt E. L. a Shaffer E. W. (Anal. chem., 21» 1534 (1965). (Nevýhodou článku, ktorý navrhli, je, že vymývaoí elektrolyt trvale zvačšuje objem hlavného elektrolytu, čo znižuje nlelen citlivost indikacie ale aj spolahlivost určenia bodu ekvivalencie. Slánok je len dvojkomorový a předpokládá inertnost protiprúdneho elektrolytu. Článok Taylora J. K. a Smitha S. V.Requirement of minimum losses of a given substance as well as its contamination by the product! electrolysis on the auxiliary electrode has been the subject of several suggestions for improved design of the coulometric cell. The principle of countercurrent arrangement of electrodes was first used by Eckeldt EL and Shaffer EW (Anal. Chem., 21 »1534 (1965). (The disadvantage of the cell they designed is that the electrolyte wash constantly increases the volume of the main electrolyte). The salt is only bicameral and assumes the inertness of the countercurrent electrolyte Article by Taylor JK and Smith SV
(J. Res. MBS 63A. 153 (1959) je nerozoberatelný a pracuje na principe diskontinuálneho pretláčania elektrolytu spát do elektrolyzačnej nádoby. Tento spósob neumožňuje přesné vytitrovanie reakčného roztoku a aby sa zaistila kvantitatívnost stanovenie, operácia sa musí niekolkokrát opakovat. Konštrukcia nádobky neumožňuje odstraňovat produkty pomoonej elektrody, ktoré sa hromadla v spodnej časti nádoby, čo mSže spdsobit poškodenie agarového spoja,(J. Res. MBS 63A. 153 (1959) is non-detachable and operates on the principle of discontinuous electrolyte extrusion to the electrolysis vessel. This method does not allow accurate titration of the reaction solution and must be repeated several times to ensure quantitative determination. electrode products that accumulate at the bottom of the container, causing damage to the agar joint,
U všetkých doteraz používaných nádobiek s možnostou výměny elektrolytu je kvapalinový spoj s pracovným elektrolytom realizovaný diskami zo sintrového skla, ktoré m8že sp&sobitIn all the electrolyte exchange containers used hitherto, the fluid connection with the working electrolyte is realized by sintered glass discs which can cause
203 642 straty stanovované;) látky.203 642 losses determined;) substances.
Uvedené nedostatky odstraňuje coulometrický poločlánok na stanovenie obsahu hlavnej zložky referenčnýoh materlálov, podlá vynálezu, ktorého podstata je v tom, že súčaslou oddelovacej komory J je kompenzačná komora b, ktorej kvapalinový spoj s pracovným elektrolytom je vytvořený oez sústavu otvorov J, usporiadaný v spodnej časti kompenzačnej komory 6 a na opačnej straně od kvapallnového spoja je kompenzačné komora 6 opatřená trubicou 8 pre přívod plynu, alebo zapojenie vákua.The above-mentioned drawbacks are eliminated by a coulometric half-cell for determining the content of the main component of the reference materials according to the invention, characterized in that the separating chamber J is a compensating chamber b whose fluid connection with the working electrolyte is formed from a set of orifices J arranged at the bottom of the compensating material. The compensation chamber 6 is provided with a gas supply tube 8 or a vacuum connection 8 on the opposite side of the fluid connection.
Takte upravený poločlánok aplňa požiadavku minimálnych strát etanovovanej látky z pracovného poločlánku, ako aj jej znečiatenla produktami elektrolýzy na pracovnej elektróde, a přesné vytltrovanie elektrolytu v hraničnom pásme a jeho regulovaný přítok do reakčného priestoru.Thus, the modified half-cell satisfies the requirement of minimum losses of ethaned substance from the working half-cell as well as its contamination by electrolysis products on the working electrode, and the accurate elimination of the electrolyte in the boundary zone and its controlled inflow into the reaction space.
Na připojeno výkrese je znázorněný poločlánok, ktorý ea skládá z oddělovacích komdr 1, 2, 2* ktoré sú oddělené sklennýml membránami Súčaslou oddélovaoej komory J, v ktorej za účelom zvýSenia hydrodynamického odporu je eklenná membrána J kombinovaná agarovým, připadne slllkagélovým spojom ji, je kompenzačné komora £, ktorej kvapalinový spoj je vytvořený cez sústavu otvorov 2 ▼ spodnej časti kompenzačnej komory 6 a na opačnej straně od kvapallnového spoja so sústavou otvorov 2 d® kompenzačné komora 2 opatřená trubicou 8 pre přívod plynu, alebo zapojenia vákua.The attached drawing shows a half-cell which consists of separating chambers 1, 2, 2 * which are separated by glass membranes. A separating chamber J in which, in order to increase the hydrodynamic resistance, a green membrane J combined with an agar or slellgel joint is a chamber 8, the fluid connection of which is formed through a set of openings 2 sp of the bottom of the compensation chamber 6 and on the opposite side of the fluid connection with the set of openings 2 d kompenz a compensation chamber 2 provided with a gas supply tube 8 or a vacuum connection.
Konštrukcia poločlánku umožňuje jedno, připadne dvojstupňové premývanle komdr J, 2, poločlánku elektrolytom rovnakého zloženia, čím ea odstraňujú nežiadúoe produkty elektrolýzy na elektróde. Kompenzáeia difúzneho, připadne migračného transportu sa realizuje protlprúdnou teohnikou v kompenzačnej komoře 2 B kvapalinovým spojom so sústavou otvorov 2* Dlskontinuálny tok vytltrovaného základného roztoku z tejto komory má opačný směr ako dlfúzla, připadne mlgráola, v důsledku čoho nedoohádza k stratám etanovovanej látky.The design of the half-cell allows a single or two-stage flushing chamber of the half-cell with an electrolyte of the same composition, thereby removing unwanted electrolysis products on the electrode. Kompenzáeia diffusion, or migration transport is carried protlprúdnou teohnikou in the compensation chamber B two fluid connections with a system of holes 2 * Dlskontinuálny vytltrovaného flow of stock solution from the chamber the opposite direction to dlfúzla, optionally mlgráola, as a result of which losses nedoohádza etanovovanej substance.
Takto konstruovaný poločlánok je unlverzálny a umožňuje ooulometrloké titráoie s použitím praoovnýoh elektród s tuhým povrohom velkosti 10 až 150 om2. Možno ním stanovil 0,002 až 0,04 mólu látky prfldom 0,1 až 1,0 ampéra za 0,5 až 1 hodinu*The semiconductor constructed in this way is unversely and allows ooulometrlo-titration using solid state electrodes with a solid surface size of 10 to 150 µm 2 . It may have determined 0.002 to 0.04 mole of substance by an average of 0.1 to 1.0 ampere per 0.5 to 1 hour *
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS880278A CS205642B1 (en) | 1978-12-22 | 1978-12-22 | Coulombometer semicell for determination of the contents of the main component of reference materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS880278A CS205642B1 (en) | 1978-12-22 | 1978-12-22 | Coulombometer semicell for determination of the contents of the main component of reference materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS205642B1 true CS205642B1 (en) | 1981-05-29 |
Family
ID=5439082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS880278A CS205642B1 (en) | 1978-12-22 | 1978-12-22 | Coulombometer semicell for determination of the contents of the main component of reference materials |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS205642B1 (en) |
-
1978
- 1978-12-22 CS CS880278A patent/CS205642B1/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI61209C (en) | ELECTROCHEMICAL CELL | |
| US2878178A (en) | Continuous free-boundary flow electrophoresis | |
| US4585539A (en) | Electrolytic reactor | |
| US4048038A (en) | Electroflocculation cell | |
| IN163785B (en) | ||
| US4552640A (en) | Electrophoretic apparatus for the quantitative elution of proteins or polypeptides from a gel | |
| FR2586710B1 (en) | ORGANIC ELECTROLYSIS CELL WITH CONSUMABLE ELECTRODE | |
| SE7909070L (en) | SET TO ELECTROLIZE ATMINSTONE A PART OF A FLUID CONTAINING AN ELECTROLYTE | |
| US4312729A (en) | Dewatering with electrically augmented vacuum filter | |
| CS205642B1 (en) | Coulombometer semicell for determination of the contents of the main component of reference materials | |
| US4402811A (en) | Hydrochloric acid electrolytic cell for the preparation of chlorine and hydrogen | |
| EP1748340A2 (en) | A microfluidic device and a method for electrically regulating the pH of a fluid | |
| CA1105882A (en) | Horizontal mercury cathode electrolyzer | |
| AR241520A1 (en) | Apparatus and process for separating a dispersed liquid phase from a continuous liquid phase by electrostatic coalescence | |
| GB1444434A (en) | Electrostatic separating apparatus | |
| RU2005121231A (en) | ELECTROKINETIC MICROPUMP | |
| Righetti et al. | A horizontal apparatus for isoelectric protein purification in a segmented immobilized pH gradient | |
| US5256269A (en) | Method and apparatus for separating biological substances and organic compounds in solution | |
| US3252883A (en) | Frames for electrolytic diaphragm cells | |
| ATE99739T1 (en) | ELECTROLYTIC CELL FOR GAS PRODUCTION CONTAINING A STACK OF VERTICAL FRAMES. | |
| GB1360704A (en) | Electrolytic cell | |
| US4426270A (en) | Monopolar filter-press electrolyzer | |
| JPS5939161B2 (en) | Countercurrent extraction column for liquid-liquid extraction | |
| EP0202955A3 (en) | Dialyzing electrofilter with improved electrode | |
| EP0395674B1 (en) | Deposition apparatus |