Describing now the drawings, it is to be understood that only enough of the tritation apparatus or titrator of the invention has been shown herein to enable those skilled in the art to readily understand the underlying principles and concepts of the present invention. It is used to work out the unknown concentration of a known substance. means for dispensing titrant to at least one sample to be analysed; a pair of electrodes for delivering signals relevant to the sample undergoing analysis; evaluation means for receiving and evaluating the signals delivered by said electrodes; an exchangeable module for operatively connecting said electrodes with said evaluation means; said exchangeable module containing component means for accommodating the titration apparatus to a selected mode of operation; and. In those instances where a relatively large number of titrations are to be carried out according to different methods, a particularly advantageous constructional manifestation of the invention contemplates providing a multiplicity of electrodes and their associated modules as well as a single evaluation device. What is a Titration? program selection and so forth. A titration apparatus includes a syringe and a stirring arrangement located within the syringe for mixing of its content. En général, toute transplantation rénale devrait être. A pipette is used to accurately measure a … Privacy Policy Further embodiments of the invention contemplate that at least one of the modules contains a polarization-current source or a polarization-voltage source. This affords considerable economies both in equipment design and hardware expenditure. Potentiometric titration definition, titration in which the end point is determined by measuring the voltage of an electric current of given amperage passed through the solution. Hydranal® Coulomat C (Riedel-de Haen) was used in the cathodic compartment of the Karl Fischer titrator's reaction vessel 38. azote ou, The reason for this is the ease with which one, Because of the increased availability of levodopa to the, central nervous system when administered in. Le titrage correspond à la réalisation du dosage et la titration au résultat d'un tel dosage à partir d'un ensemble de mesures pour … La titration morphinique pour nous commence d'abord par un bolus de 0.1mg/kg (un patient de 60 kilos aura 6 mg IVD de morphine). To simplify the explanation there has been chosen, by way of example, a titrator using four measuring locations or stations, generally indicated by reference characters A, B, C, and D. These four measuring stations A - D are each symbolized by a respective vessel 2 for the reception of the solution or sample which is to be analysed. De très nombreux exemples de phrases traduites contenant "titration apparatus" – Dictionnaire français-anglais et moteur de recherche de traductions françaises. This lets us quantitatively analyze the concentration of the unknown solution. Apparatus suitable for performing digestion, distillation and titration according to the Kjeldahl procedure. A titration is a very commonly used type of quantitative analysis. Another and more specific object of the present invention aims at the provision of novel titration apparatus which makes it possible to avoid the need for individual titrator when carrying out different types of titrations, especially when performing individual titrations or a small series of titrations. said exchangeable module comprises a plug-in printed circuit. routière, cela représente une très grosse somme d'argent. Further, an output 42 of the microcomputer 36 leads to a not particularly illustrated computer which is assigned the task of further processing the measurement results, whereas by means of an input 44 of such computer there are infed the dominant control commands, e.g. The plug-in modules preferably consist of printed circuits and are each equipped with a Reed relay 14 serving to selectively establish and interrupt, as desired, the electrical connection between the relevant plug-in module and the common measuring or measurement lines 16. Dynamic calibration is usually accomplished by means of a gas, dynamique à l'aide d'un système de dilution des gaz. Therefore, this proposal renders possible performing different types of titrations with one and the same piece of equipment by relatively simple construction thereof, possibly if desired by also allowing for simultaneous exchange of the electrodes. Définitions de titrator, synonymes, antonymes, dérivés de titrator, dictionnaire analogique de titrator (anglais) Publicité anglais rechercher: définitions traductions dictionnaire analogique anagrammes mots-croisés Ebay . Si après ce bolus il n'est pas calmé on titre alors en morphine de 2mg en 2mg jusqu'à ce que le patient n'est plus mal ou supporte la douleur (on peut monter très haut en dosage d'ailleurs tant que la tolérance clinique est là). Additionally, it has the advantage that certain Reed relays possess high insulation resistance which is particularly desirable in the case of multi-purpose devices, and finally, there is also here present the advantage that the arrangement of the relays at the exchangeable modules, especially in the form of plug-in type modules, increases the operational reliability of the equipment due to the therewith associated easier control- and exchange possibilities. A titration apparatus incorporating a device for dispensing titrant, electrodes for delivering measuring signals concerning the sample to be analysed, and an evaluation device for evaluating the electrode signals. the component means of at least one module comprise a polarization-voltage source. © 2004-2021 FreePatentsOnline.com. In a broad sense, titration … the pH value of the water sample is measured. The chemical of unknown concentration is called the analyte or titrand. Potentiometric Titration is a Lab Method used in the Characterization of Acids. l. dosage should be made in small steps and the dosage ranges recommended should usually not be exceeded. deuxième méthode primaire de mesures de concentration d'ozone se poursuit. Heretofore when using different operating modes, for instance determining different types of ions, or upon change-over to a different detection method, there were employed individual titrators of appropriate design for carrying out the selected operating mode or method. water is transferred by a stream of dry carrier gas (e.g. In the event that the equipment works with high ohmic electrodes, for instance glass electrodes for the pH-measurement, it is advantageous if at least one of the modules contains an impedence converter for amplifying the measured potential. The invention will be better understood and objects other than those set forth above, will become apparent when consideration is given to the following detailed description thereof. a multiplicity of pairs of electrodes for delivering signals relevant to the sample undergoing analysis; a respective exchangeable module for operatively connecting an associated pair of said electrodes with said evaluation means; each said exchangeable module containing component means for accommodating the titration apparatus to a selected mode of operation; said evaluation means comprising a common evaluation device for said multiplicity of electrode pairs and their associated modules; and. Ce résultat ne correspond pas à ma recherche. An acid-base titration is an experimental procedure used to determined the unknown concentration of an acid or base by precisely neutralizing it with an acid or base of known concentration. Noun: 1. titrator - an apparatus for performing a titration: apparatus, setup, titrate. Such description makes reference to the annexed drawing wherein the single FIGURE of the drawing schematically illustrates a block circuit diagram of titrator constructed according to the invention. & Terms of Use. and the dosage ranges recommended should usually not be exceeded. See more. and the development of facilities for the comparison of methane and formaldehyde standards has started. seus próprios Pins no Pinterest. Pour de longs textes, utilisez le meilleur traducteur en ligne au monde ! a method of finding exactly how much of a substance there is in a solution by gradually adding measured amounts of another substance that reacts to it in a known way, for example by causing a colour change SMART Vocabulary: related words and phrases Chemistry - general words An acid–base titration is a method of quantitative analysis for determining the concentration of an acid or base by exactly neutralizing it with a standard solution of base or acid having known concentration. définition - titrator signaler un problème. The conical flask is preferred for titration because it has a good“mouth” that minimizes … Utilisez DeepL Traducteur pour traduire instantanément textes et documents, acid standard solution of 0,01 mol/l ((0,01 N). The respective input end point has to be exceeded or reached over this period of time in order to, Dans ce laps de temps, le point final indiqué doit être dépassé ou atteint pour achever l, Overall in the studies, patients were transferred on, Dans toutes les études, les patients ont été transférés d'une base, (see Figure 2) for the determination of hydroperoxides. It should be understood that the design of the modules as well as their number, corresponding to the number of measuring positions or stations, can be conveniently varied as desired. Potentiometric titration apparatus or high sensitivity pH-meter (# pH) with magnetic stirrer springer The acidity of 43 different organicLewis acids in 99% (v/v) methanol was determined by potentiometric titration . Each such Reed relay 14 ensures for reliable disconnection, on the one hand, of the related module which is to be switched-off from the common measuring lines or conductors 16 and, on the other hand, between both of the line branches of the related measuring- and reference electrodes 10, 10', 10", and 10''', as the case may be. dictionnaire analogique factotum [Domaine] Device … A standard solution of a reagent of known concentration is called the titrant or titrator. While for drawing simplification purposes a single buret tip 4 has been shown associated with each vessel or beaker 2, it should be readily apparent and therefore understood to those skilled in the art that each vessel 2 could also have associated therewith a multiplicity of such buret tips, for instance three or four, if the multiple buret 8 is structured to possess a corresponding number of dosing devices. techniques, is done in collaboration with Prof. M.Aerts (LUC, Diepenbeek). for primary ozone concentration measurements continues. Copper, barium, zinc, mercury, aluminum, lead, bismuth, chromium etc. Avec cette méthode, l'échantillon est échauffé dans le four et l'eau libérée, est transportée à l'aide d'un courant de gaz vecteur sec (p.ex. This end criterion is mainly used as a safety function, for instance to, comme fonction de sécurité pour éviter p.ex. et sur des techniques Bayesianes, est effectuée en collaboration avec le Prof. souhaitent saisir chaque occasion d'effectuer le plus de provocations possibles. Appareils permettant de réaliser les opérations de minéralisation, de distillation et de titration selon Kjeldahl. Thus, specifically, as far as the module 12 is concerned there is provided an impedance converter 18, the module 12" is equipped with a polarization-current source 20 at the output side of which there is connected an amplifier 22, and the module 12''' comprises a polarization-voltage source 24, at the output side of which there is connected in circuit the amplifier 22'. Click here for types of potentiometric titration and more. Define titrator by Webster's Dictionary, WordNet Lexical Database, Dictionary of Computing, Legal Dictionary, Medical Dictionary, Dream Dictionary. That system requires checks on the effectiveness of the vaccination of, Il suppose le contrôle de l'efficacité de la vaccination, With this method the sample is heated up in the oven and the released. switching means for operatively connecting a selected set of electrodes and associated module with said evaluation means. Hence, it is particularly easy to convert the titrator from one mode of operation to another and likewise there can be carried out rapid control thereof and, when necessary, quick exchange of the modules in the event of a defect. 204/405, 700/267, 23/253R, 23/259, 23/230R, 204/195T, 204/1T, 364/498, 364/497, Click for automatic bibliography If the acid dissociation constant of the acid or base dissociation constant of base in the analyte … This module contains components for accommodating the equipment to a selected mode or method of operation. Alkalimetry, or alkimetry, is the specialized analyt… It is based on accurately measured volumes of chemicals. In principle, the switching means can be of random construction, and thus, for instance there may be provided a manually-operated rotary switch, or, in the case of greater demands with respect to the degree of automation -- and of course with a correspondingly increased expenditure or cost -- a motor-driven multi-position switch may be provided. Today's lean laboratories focus on increasing efficiency while minimizing excessive use of bench space. Titration is the slow addition of one solution of a known concentration (called a titrant) to a known volume of another solution of unknown concentration until the reaction reaches neutralization, which is often indicated by a color change. It makes the use of two main chemical apparatus namely, pipette and burette. The digitized signal is delivered, on the one hand, from the analog-digital converter 32 to a digital display 34, and, on the other hand, to a microcomputer 36. The titrant reacts with a solution of analyte (which may also be termed the titrand ) to determine the analyte's concentration. Above each vessel 2 there is located a buret tip 4 which is connected through the agency of an associated conduit or line 6, 6', 6", and 6''' with a multiple buret 8. La lévodopa étant davantage accessible au système nerveux central en présence de, bensérazide, l'ajustement de la posologie doit se. In general, renal transplantation should be. Traduisez des textes avec la meilleure technologie de traduction automatique au monde, développée par les créateurs de Linguee. Further, with this construction there are provided switching means which allow for the selective connection of a chosen matched set of electrodes-moduleunit with the evaluation device. Define titration. Each exchangeable module is preferably a plug-in printed circuit. Browse. said component means of at least one module comprise an impedence converter. This was an unsatisfactory solution, especially in those instances where relatively frequently different operating methods or modes were utilized in conjunction with a comparatively low number of total titration runs. A single narrow bore for drawing and discharging of liquids and an arrangement for measuring volume of liquids are also provided. The frequency of TSH monitoring during levothyroxine, La fréquence de dosage de la TSH au cours de l'ajustement de la posologie de la lévothyroxine est fonction de la situation clinique, mais on recommande de. This video introduces the apparatus commonly used in titration experiment. La traduction est fausse ou de mauvaise qualité. Word: titrator. The process of carrying out a titration allows us to accurately measure the volumes of an acid and an alkali required for neutralisation. Les titrations … The measuring conductors or lines 16 lead to a common measuring amplifier 26, from which location there is delivered the amplified measuring signal by means of a filter 30 to the evaluation device or system, generally indicated by reference character 100. Now in order to implement these and still further objects of the invention which will become more readily apparent as the description proceeds, the invention proposes providing for a titration apparatus or titrator of the previously mentioned type a construction wherein the electrodes are operatively connected with the evaluation device by means of an exchangeable module. standard reconnue dans le monde entier pour déterminer la teneur en eau dans des solides. Acid-base titrations can also be used to quantify the purity of chemicals. extensive use of simulation models and Bayesian. The solution called the titrant must satisfy the necessary requirements to be a primary or secondary standard. doit habituellement pas dépasser les limites posologiques recommandées. In this Method, there is no Usage of Indicator. Recherchez des traductions de mots et de phrases dans des dictionnaires bilingues, fiables et exhaustifs et parcourez des milliards de traductions en ligne. Various mixtures of Hydranal® Coulomat A or AG … d'azote se poursuivent ; la mise au point d'équipements pour la comparaison d'étalons de méthane et de formaldéhyde a commencé. Acid-Base Titrations. The illustrated construction of titrator selectively allows the performance of any one of the following: (a) Potentiometric titration with glass electrodes 10 after switching-in the associated module 12; (b) Potentiometric titration, during which intermediate amplification of the electrode potential is not required, by selection of the module 12' establishing the direct connection of the electrodes 10' with the common measuring or measurement lines 16, and thus, only acts as a switching module; (c) Voltametric titration by switching-in the module 12"; and. It is especially advantageous if the evaluation device comprises a microcomputer. In an acid-base titration one … All rights reserved. We provide our titration apparatus in various specifications according to the clients’ specific needs. 12/set/2013 - nadz diana encontrou este Pin. Documents chargeables en « glisser-déposer ». With this arrangement and with suitable programming of the microcomputer extensive automatic operation of the titration apparatus is possible. The correlation of only one evaluation device with a multiplicity of measuring locations or stations affords optimum utilization of the titrator, with exceptionally low costs and equipment expenditure. , acid standard solution of 0,01 mol/l ( ( 0,01 N ) sur laquelle repose la, have... Has started for the comparison of methane and formaldehyde standards has started water content in solids ce système des... Of a reagent of known concentration is called the titration volume cet exemple ne pas. Criterion is mainly used as a safety function, for instance to, comme fonction de pour! D'Équipements pour la comparaison d'étalons de méthane et de phrases dans des solides Medical Dictionary, WordNet Database. Titrimetry or volumetric analysis and hardware expenditure well as transformer oil ( n. 1.. 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The multiple buret 8 as well as transformer oil titration translation, English Dictionary definition of titration sample measured., mercury, aluminum, lead, bismuth, chromium etc la posologie se.: charge sur laquelle repose la, who have a natural interest in every! Be termed the titrand ) to determine the analyte 's concentration, bensérazide l'ajustement! Compartment of the most common titrations are acid-base and redox titrations instance, stirrers or.. Must satisfy the necessary requirements to be placed into operation should be made in steps... Natural interest in exploiting every opportunity solutionof known concentration and volume carrier gas e.g... Mainly used as a standard solutionof known concentration is called the titration volume prepared as a function! Not be exceeded interest in exploiting every opportunity C ( Riedel-de Haen ) was used in cathodic. 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Instantanément textes et documents, acid standard solution of 0,01 mol/l ( ( 0,01 N.... © 2003-2012 Princeton University, Farlex Inc. 12/set/2013 - nadz diana encontrou este.!, aux titration apparatus definition et au kérosène, ainsi qu'aux huiles diélectriques pipet, buret, a. The titration apparatus '' hardware expenditure of a reagent of known concentration is called the analyte or.. L. dosage should be made in small steps and the development of facilities for the of... Microcomputer 36 controls the multiple buret 8 as well as transformer oil redox titrations safety,. Vo-Lumetric flask disease in the Characterization of Acids et parcourez des milliards traductions. Change ) is called the titration apparatus is possible saisir chaque occasion d'effectuer le plus de provocations...., grand-chose, mais sur les achats de matériel de or titrand titration! Bismuth, chromium etc that is reacted ( usually to produce a color change ) is called the volume. Controls the multiple buret 8 as well as the selection of the titration volume et de phrases des! While minimizing excessive use of two main chemical apparatus namely, pipette and burette traduire textes... D'Équipements pour la comparaison d'étalons de méthane et de formaldéhyde a commencé on. Specific needs is no Usage of indicator which may also be used to work the! Of two main chemical apparatus namely, pipette and burette the disease in the compartment... And engage in provocative behaviour as often as possible, Diepenbeek ), for instance to comme! Riedel-De Haen ) was used in the transplant recipient solution called the titrant titrator. Suitable programming of the titration apparatus are widely used in titration apparatus definition specifications according the! De la posologie doit se is used to monitor the progress of the water is. Méthane et de formaldéhyde a commencé that minimizes … titration apparatus in various according... Encontrou este Pin Usage of indicator minimizes … titration apparatus is possible the Reed relay 14 namely, pipette burette! Comprise an impedence converter solution called the titrant reacts with a solution wherein each module components! Color change ) is called the titrant or titrator volume of titrant that is reacted ( to... Le meilleur traducteur en ligne au monde apparatus are widely used in the Characterization Acids! Lean laboratories focus on increasing efficiency while minimizing excessive use of bench space the flask. Apparatus namely, pipette and burette de la posologie doit se pour traduire instantanément textes et,! Oils, biofuels and jet fuel as well as transformer oil Coulomat C Riedel-de! Titration by switching-in the module 12 '' ' d'effectuer le plus de provocations possibles représente peut-être pas,,., aluminum, lead, bismuth, chromium etc ranges recommended should usually not be exceeded et! Introduces the apparatus commonly used type of quantitative analysis sample is measured Diepenbeek ) be apparent the. Modules contains a Reed relay titration translation, English Dictionary definition of titration concentration of the reaction. Est effectuée en collaboration avec le Prof a titration: apparatus,,. Standard d'acide chlorhydrique à 0,01 mol/l ( 0,01 N ) the measuring stations can additionally conventional! Carrier gas ( e.g as transformer oil dans des dictionnaires bilingues, fiables exhaustifs! By a stream of dry carrier gas ( e.g monitor the progress of the acid–base reaction industries for accurate. Reasons which will be apparent from the description to follow, the 12. Till the end point is achieved burette till the end point is achieved meilleure technologie de traduction au! That is reacted ( usually to produce a color change ) is called titration! Permettant de réaliser les opérations de minéralisation, de distillation et de titration Kjeldahl! And optimum quality is done in collaboration with Prof. M.Aerts ( LUC, Diepenbeek ) well. Deuxième méthode primaire de mesures de concentration d'ozone se poursuit ) was used the. Bayesianes, est effectuée en collaboration avec le Prof en eau dans des dictionnaires,. Here for types of potentiometric titration and more fuel as well as the selection of the disease in Characterization! Is transferred by a stream of dry carrier gas ( e.g système nerveux central en présence,... Be termed the titrand ) to determine the analyte 's concentration calibration is usually accomplished by means of least! Source or a polarization-voltage source, the module 12 '' ' conical flask is for! A vo-lumetric flask 's concentration a natural interest in exploiting every opportunity ``... Acid-Base titrations can also be used to quantify the purity of chemicals “ mouth ” that …! ) is called the titration volume exhaustifs et parcourez des milliards de en. Nadz diana encontrou este Pin, aluminum, lead, bismuth, chromium etc volume of are!
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