natgillin/translations-raw huggingface dataset:
The adsorption of these chemicals is correlated with the organic content of the sorbing solid (7); thus, Koc values depend on the specific characteristics of the humic fractions which differ considerably in sorption capacity, due to differences in origin, genesis, etc.
Sådana ämnens adsorption är beroende av den sorberande fasta fasens organiska innehåll (7), och därför beror Koc-värdet på de humösa fraktionernas specifika egenskaper, eftersom sorptionskapaciteten hos dessa fraktioner kan variera kraftigt beroende på deras olika ursprung, uppkomst osv.
The Freundlich adsorption isotherms equation relates the amount of the test substance adsorbed to the concentration of the test substance in solution at equilibrium (equation 8).
Ekvationen för Freundlich-adsorptionsisotermer ger sambandet mellan mängden av adsorberat testämne och testämnets koncentration i lösningen vid jämvikt (ekvation 8).
The data are treated as under ‘Adsorption’ and, for each test tube, the content of the test substance adsorbed on the soil after the adsorption test (Cs
Data behandlas på samma sätt som i punkten ”Adsorption” ovan, och halten av adsorberat testämne i jorden efter adsorptionstestet Cs
represents the equilibrium value:
representerar jämviktsvärdet:
The Freundlich adsorption equation is shown in (8):
Freundlich-adsorptionsekvationen (8) ser ut så här:
or in the linear form:
eller i linjär form:
Freundlich adsorption coefficient; its dimension is cm3 g-1 only if 1/n = 1; in all other cases, the slope 1/n is introduced in the dimension of KF
Freundlich-adsorptionskoefficienten, som anges i dimensionen cm3 g-1 bara om exponenten l/n = 1. 1 alla andra fall införs l/n i dimensionen förKF
(μg1-1/n (cm3)1/n g-1);
(μg1-1/n (cm3)1/n g-1)
n regression constant; 1/n generally ranges between 0,7-1,0 indicating that sorption data is frequently slightly non-linear.
n regressionskoefficienten. l/n ligger i regel mellan 0,7 och 1,0 som indikation på att sorptionsdata ofta är något olinjära.
Equations (8) and (9) are plotted and the values of KF
Ekvationerna (8) och (9) ritas upp i diagram, och värdena på KF
An example of such plots is given in Fig. 2.
Likaså beräknas den logaritmiska ekvationens korrelationskoefficient r. Exempel på kurvor av detta slag finns i figur 2.
Fig. 2 Freundlich Adsorption Plot, normal and linearised
Figur 2 Freundlich-adsorptionskurva (normal respektive linjanserad)
Mass balance
Massbalans
The mass balance (MB) is defined as the percentage of substance which can be analytically recovered after an adsorption test versus the nominal amount of substance at the beginning of the test.
Massbalansen (MB) anges i procent och definieras som förhållandet mellan den mängd av ämnet som analytiskt kan tas till vara efter adsorptionstestet och den nominella mängden av ämnet vid testets början.
The treatment of data will differ if the solvent is completely miscible with water.
Behandlingen av resultaten blir annorlunda om lösningsmedlet är fullständigt blandbart med vatten.
In the case of water-miscible solvent, the treatment of data described under ‘Desorption’ may be applied to determine the amount of substance recovered by solvent extraction.
Då kan man behandla resultaten på samma sätt som i punkten ”Desorption” för att bestämma den mängd av ämnet som tagits till vara genom extraktion av lösningsmedel.
If the solvent is less miscible with water, the determination of the amount recovered has to be made.
Om lösningsmedlet är mindre blandbart med vatten krävs en bestämning av den tillvaratagna mängden.
The mass balance MB for the adsorption is calculated as follows; it is assumed that the term (mE) corresponds to the sum of the test chemical masses extracted from the soil and surface of the test vessel with an organic solvent:
Massbalansen MB för adsorptionen beräknas enligt följande ekvation, under antagandet att termen (mE) motsvarar summan av de testämnesmassor som extraherats ur jorden och från testkärlets yta med hjälp av ett organiskt lösningsmedel:
MB mass balance (%);
MB massbalans ( %)
total mass of test substance extracted from the soil and walls of the test vessel in two steps (μg);
total massa av testämne som extraherats ur jorden och från testkärlets väggar i två steg (μg),
initial mass concentration of the test solution in contact with the soil (μg cm-3);
ursprunglig masskoncentration i testlösningen som är i kontakt med jord (μg cm3),
volume of the supernatant recovered after the adsorption equilibrium (cm-3).
volymen supernatant som tagits till vara efter adsorptionsjämvikt (cm-3).
DESORPTION
DESORPTION
The desorption (D) is defined as the percentage of the test substance which is desorbed, related to the quantity of substance previously adsorbed, under the test conditions:
Desorptionen (D) uttrycks i procent och definieras som förhållandet mellan den desorberade mängden av testämnet och den tidigare adsorberade mängden av ämnet, under testbetingelserna:
desorption percentage at a time point ti(%);
procentuell desorption vid tidpunkten ti ( %),
mass of the test substance desorbed from soil at a time point ti (μg);
massan av testämne som desorberats ur jorden vid tidpunkten ti (μg),
mass of the test substance adsorbed on soil at adsorption equilibrium (μg).
massan av testämne som adsorberats i jorden vid adsorptionsjämvikt (μg).
Detailed information on how to calculate the percentage of desorption Dti
Närmare anvisningar för sättet att beräkna den procentuella desorptionen Dti
The apparent desorption coefficient (Kdes) is, under the test conditions, the ratio between the content of the substance remaining in the soil phase and the mass concentration of the desorbed substance in the aqueous solution, when desorption equilibrium is reached:
Den skenbara desorptionskoefficienten (Kdes) är, under de aktuella testbetingelserna, förhållandet mellan massan av ämne som finns kvar i jordfasen och massan av desorberat ämne i vattenlösningen, när desorptionsjämvikt har inträtt:
desorption coefficient (cm3 g-1);
desorptionskoefficient (cm3 g-1):
total mass of the test substance desorbed from soil at desorption equilibrium (μg);
totala massan av testämne som desorberats ur jord vid desorptionsjämvikt (μg),
total volume of the aqueous phase in contact with the soil during the desorption kinetics test (cm3).
totala volymen av vattenfas i kontakt med jord under desorptionskinetiktestet (cm3).
Guidance for calculating the maq
Anvisningar för beräkning avmaq
is given in Appendix 5 under the heading ‘Desorption’.
finns i tillagg 5 under rubriken ”Desorption”.
Remark
Anmärkning:
If the adsorption test which was preceded, was performed with the parallel method the volume VT in the equation (12) is considered to be equal to V0.
Om adsorptionstestet som föregår desorptionstestet utförts med parallellmetoden, kan volymen VT i ekvation (12) sättas lika med Vo.
The Freundlich desorption isotherms equation relates the content of the test substance remaining adsorbed on the soil to the concentration of the test substance in solution at desorption equilibrium (equation 16).
Ekvationen för Frcundlich-desorptionsisotermer beskriver sambandet mellan mängden av testämne som förblir adsorberat i jorden och koncentrationen av testämne i lösningen vid desorptionsjämvikt (ekvation 16).
For each test tube, the content of the substance remaining adsorbed on soil at desorption equilibrium is calculated as follows:
Halten av ämne som förblir adsorberat i jorden vid desorptionsjämvikt beräknas för varje provrör enligt följande:
content of the test substance remaining adsorbed on the soil at desorption equilibrium (μg g-1);
balten av testämne som förblir adsorberat i jorden vid desorptionsjämvikt (μg g-1),
mass of substance determined analytically in the aqueous phase at desorption equilibrium (μg);
massan av ämne som bestämts analytiskt i vattenfasen vid desorptionsjämvikt (μg),
mass of the test substance left over from the adsorption equilibrium due to incomplete volume replacement (μg);
massan av testämne som blivit över (efter att adsorptionsjämvikt inträtt) på grund av ofullständig volymersättning (μg),
volume of the solution taken from the tube for the measurement of the test substance, at desorption equilibrium (cm3);
volymen av lösning som tagits ur röret för uppmätning av testämnet vid desorptionsjämvikt (cm3),
volume of the supernatant removed from the tube after the attainment of adsorption equilibrium and replaced by the same volume of a 0,01 M CaCl2 solution (cm3);
volymen av supernatant som avlägsnats ur röret efter att adsorptionsjämvikt inträtt och som ersatts med samma volym av 0,01 M CaCl2-lösning (cm3).
The Freundlich desorption equation is shown in (16):
Freundlich-desorptionsekvationen (16) ser ut så här:
Freundlich desorption coefficient;
Freundlich-desorptionskoefficienten.
n regression constant;
n regressionskoefficienren,
mass concentration of the substance in the aqueous phase at desorption equilibrium (μg cm-3).
ämnets masskoncentration i vattenfasen vid desorptionsjämvikt (μg cm-3).
The equations (16) and (17) can be plotted and the value of KF
Ekvationerna 16 och 17 kan ritas upp i diagram, och värdet på KF
and 1/n are calculated by regression analysis using the equation 17.
och l/n beräknas med regressionsanalys med hjälp av ekvation 17.
if the Freundlich adsorption or desorption exponent 1/n is equal to 1, the Freundlich adsorption or desorption binding constant (KF
Om Freundlichs adsorptions- eller desorptionsexponent l/n är lika med 1, blir Freundlichs adsorptions- eller desorptionskoefficient (KF
and KF
respektive KF
will be equal to the adsorption or desorption equilibrium constants (Kd and Kdes) respectively, and plots of Cs vs Caq will be linear.
lika med adsorptionens respektive desorptionens jämviktskoefficient (Kd och Kdes), och kurvorna över Cs som funktion av Caq blir linjära.
If the exponents are not equal to 1, plots of Cs vs Caq will be non-linear and the adsorption and desorption constants will vary along the isotherms.
Om exponenten är skild från 1, blir kurvorna över Cs som funktion av Caq olinjära, och adsorptions- och desorptionskoefficienterna kommer att variera längs isotermerna.
complete identification of the soil samples used including,
Fullständiga uppgifter om jordproverna, inbegripet följande:
geographical reference of the site (latitude, longitude),
områdets geografiska läge (latitud och longitud),
date of sampling,
provtagningsdatum,
use pattern (e.g. agricultural soil, forest, etc.),
bruksändamål (t.ex. jordbruk, skog osv.),
depth of sampling,
provtagningsdjup,
sand/silt/clay content;
halt av sand, silt och clay,
pH values (in 0,01 M CaCl2),
pH-värden (i 0,01 M CaCl2),
organic carbon content,
halt av organiskt kol,
organic matter content,
halt av organiskt material,
nitrogen content,
kvävehalt,
C/N ratio,
kol-kväveförhållande,
cation Exchange Capacity (mmol/kg),
katjonbyteskapacitet (mmol/kg),
all information relating to the collection and storage of soil samples,
alla uppgifter av betydelse som ror provtagning och förvaring av jordproverna,
where appropriate, all relevant information for the interpretation of the adsorption — desorption of the test substance,
i förekommande fall, alla uppgifter av betydelse för tolkning av testämnets adsorption och desorption,
reference of the methods used for the determination of each parameter,
uppgift om vilka metoder som använts för bestämning av enskilda parametrar.
information on the test substance as appropriate,
Relevanta uppgifter om testämnet
temperature of the experiments,
Testtemperaturen
centrifugation conditions,
Centrifugeringsbetingelser
analytical procedure used to analyse the test substance,
Analysprocedurer som använts för analys av testämnet
justification for any use of solubilising agent for the preparation of the stock solution of the test substance,
I förekommande fall motivering för användning av hjälplösningsmedel för beredning av testämnets stam lösning
explanations of corrections made in the calculations, if relevant,
1 förekommande fall förklaringar av korrigeringar som gjorts i beräkningarna
data according to the form sheet (Appendix 6) and graphical presentations,
Data enligt blanketten (bilaga 6) och diagram
all information and observations helpful for the interpretation of the test results.
Alla uppgifter och observationer som kan vara till hjälp för att tolka testresultaten.
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