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English to Spanish translations [PRO] Science - Biology (-tech,-chem,micro-) / biochemistry
English term or phrase:standard batch method
Saludos De antemano gracias.
11. Experimental Methods for the Determination of Sorption Coefficients 11.1. Batch Equilibration (BE ) A known weight of sorbent ~soil or sediment! is placed in a vial with a measured volume of solution containing a known concentration of the solute in water ~distilled or containing known concentration of an electrolyte, NaCl, CaCl2, etc., to simulate the ionic strength of soil solution and to improve phase separation!. A minimum of headspace is left to avoid losses of solute in vapor phase. The vial is shaken for a time suitable to reach equilibrium, then is centrifuged and both phases are separated and analyzed to determine the concentration of the solute. The mass of sorbate per unit mass of sorbent may be obtained also by difference between the initial concentration of solute and the concentration after equilibrium has been reached. The first procedure seems more reliable because it takes into account the possibility of loss of solute by volatilization, degradation or by other processes causing disappearence or nonrecovery of the solute from the measurement system.528 No differences were found between the two procedures with napropamide and lindane sorption by soil.529 The Kd or Kf value are calculated using Eqs. ~3! and ~4!. Often labeled ~14C or 3H! compounds are used and their concentration is measured by liquid scintillation counting. However, much care is necessary in using radio-labeled compounds, especially when sorption coefficients are extremely high. Their purity should be checked accurately before use to avoid errors in measurement of the aqueous concentration after sorption. This can be termed the ‘‘standard batch’’ method.
The difference between "standard batch method" and "standard batch equilibration procedure" shows that it is not about "batch methods" as industrial production processes per se, but rather it is about "standard batches". David's link is just an explanation of what the "metodo discontinuo" is, it is not related to whether or not we're interpreting "standard batch method" correctly in the given context. Whether it's a "standard batch" method or a standard "batch method" makes a big difference, but if you can't see that I shan't waste anymore of your time trying to help. Good luck.
Kepa S S O (X)
Colombia
ASKER
02:32 Aug 15, 2015
Hello That is your opinion. As you can read the text you'll find the term is used with and without quotation marks (and don't understand why is so important to the translation) Procedure and Method could be different, however, in this case the difference seems negligible. Indeed, I'm in favour of David link's explanation. And should be very difficult that from my side ask again batch's related terms (if David chooses to help answering the remaining question, would be nice). Thank you very much.
Well in that case with the "" on " "standard batch" method", I think it's a method which describes how to prepare a standard batch ("método de lotes estándares"), and not a "standard" way of performing the batch method ("metodo discontinuo estandar") - ??is there a non-standard way of performing the batch method?? Obviously not.
Look at "standard batch equilibration procedure"; from that, and other examples, we can see it is clear that "standard batch" go together, whereas "batch method" do not necessarily. That's because the expression " "standard batch" method" refers to how to prepare a standard batch or "el método de lotes estándares".
Kepa S S O (X)
Colombia
ASKER
18:44 Aug 13, 2015
You could read the inputs and the text and find that the term was used with and without quotation marks. The term was used four times: …This can be termed the ‘‘standard batch’’ method. An accurate evaluation of the measurement error in the standard batch method has been reported… With the standard batch method the upper limit of sorption… …The results obtained with this method gave results comparable to those obtained by the standard batch equilibration procedure The former inputs also include context about the use of just °batch°. Because it could be useful. In desorption experiments, after the first sorptive batch equilibration, the aqueous layer is discarded and clean water is added to take its place for a new equilibration step. Ball and Roberts88 measured by the batch technique Batch equilibration was used also to measure sorption behavior of colloid materials. During batch sorption–desorption experimentsB desorbs and uncovers sites for binding The former inputs also include opinions, or a guessing.
is the source written exactly as, "This can be termed the "standard batch" method." (i.e. with the "" around "standard batch")???
If indeed the "" are used in the original source text then it can't refer to "método discontinuo estándar" because that would be a standard "batch method". The quotation marks strongly imply that it is a method for preparing a standard batch ("método de lotes estándar") as opposed to a standardised version of a batch method ("método discontinuo estándar"). PLEASE COULD you answer this important question, it has a lot of bearing on the correct translation. I think David's suggestion may be a misinterpretation of the source.
I guess that could be asked again the question with the word in another context, if there were a error choosing the answers. Thank you very much for your participation.
With the standard batch method the upper limit of sorption data obtainable is dictated by affinity of the sorbent for the compound, compound water solubility, and sorbent/solution ratio. When the sorbent has a great affinity for the compound ~.95% adsorption! it becomes difficult to generate an adsorption isotherm, since even the maximum solution concentration would be greatly depleted. Consequently, it would be impossible to obtain adsorption data at or near the solubility limit of the compound using this technique. Thus, Bowman536 proposed another method which allows us to extend the isotherm to values of equilibrium aqueous concentrations closer to the water solubility of the compound under examination. For obtaining the sorption isotherm, after each equilibration and centrifugation a certain volume of supernatant is removed and substituted with an equal volume of preselected compound solution. The initial concentrations of the compound and the volume and concentrations of the solutions added in each step are se
Kepa S S O (X)
Colombia
ASKER
02:51 Aug 13, 2015
Well, indeed is obvious I misunderstand batch for lote or discontinuo (thats why I asked it). Indeed I'm biased toward to translate it as discontinuo and the link of David support that idea. I think that lotes or discontinuo are different. Indeed I'm not a chemist. Factors affecting sorption of organic compounds in natural sorbent/water systems and sorption coefficients for selected pollutants. A review more text from the same section: Ball and Roberts88 measured by the batch technique the Kd values for TCE and 1,2,4,5-TeCBz sorption on sandy aquifer material. They developed an accurate data analysis technique to account for partitioning to sample headspace and glass surfaces of the ampules, monitored through the routine use of blank samples containing solute and water but no solids. Experimental errors were determined for all important batch measurements and these propagated through the calculations to provide estimates of error on reported apparent distribution coefficients. In their study, relative errors in the measurement of Kd app were generally between 0.02 and 0.20 cm3 g21 and, for most cases, were sufficiently low as to be insignificant compared to sorption variability du
Kepa S S O (X)
Colombia
ASKER
02:45 Aug 13, 2015
another text An accurate evaluation of the measurement error in the standard batch method has been reported.534 The ratio mass sorbent/volume solution may vary in batch experiments, depending upon sorption coefficient of the chemical under study. By examining the literature reports86,121,535 this ratio ranges between 1024 and 1 g cm23 with all the possible intermediate values between these two extremes. If sorption is derived from the difference in the concentration in liquid phase, the experimental error in the sorption coefficients becomes very large when this coefficient tends to zero. To minimize experimental errors, the solid/liquid ratio of the soil suspension should always be taken as large as possible ~in practice 1 g cm23!, unless this results in an equilibrium concentration that is too low to be measured accurately. If a solid/liquid ratio of about 0.2 g cm23 is used, the error in the sorption coefficient will usually be unacceptable for sorption coefficients less than about 1 cm3 g21. If the expected value of the sorption coefficient is below 0.3 cm3 g21, it will usually be necessary to remove the liquid phase from the solid phase as far as possible and to extract the re
is the source written exactly as, "This can be termed the "standard batch" method." (i.e. with the "" around "standard batch")???
If indeed the "" are used in the original source text then it can't refer to "método discontinuo estándar" because that would be a standard "batch method". The quotation marks strongly imply that it is a method for preparing a standard batch ("método de lotes estándar") as opposed to a standardised version of a batch method ("método discontinuo estándar").
Kepa S S O (X)
Colombia
ASKER
14:14 Aug 11, 2015
David, gracias por el enlace para estas preguntas.
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Answers
7 hrs confidence:
el método de lotes estándar
Explanation: .
Neil Ashby Spain Local time: 01:49 Works in field Native speaker of: English PRO pts in category: 23
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