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Journal articles on the topic '[BMIM][MeSO4]'

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Published: 11 September 2021
Last updated: 17 July 2025

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1

Han, Song-Yi, Chan-Woo Park, Eun-Ah Lee, et al. "Pretreatment of pussy willow and Korean pine using various ionic liquids and their mixtures with organic solvents for enzymatic saccharification." BioResources 16, no. 1 (2020): 455–69. http://dx.doi.org/10.15376/biores.16.1.455-469.

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Different ionic liquids (ILs) and their mixtures with organic solvents (OSs) were investigated to determine their effects on pretreatment for enzymatic saccharification of pussy willow and Korean pine. Combinations of three ILs, namely (1-ethyl-3-methylimidazolium acetate ([EMIM]Ac), 1-butyl-3-methylimidazolium bromide ([BMIM]Br), and 1,3-dimethylimidazolium methyl sulfate ([MMIM]MeSO4)) and three OSs (N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMAc), and dimethyl sulfoxide (DMSO)) were used. Acremonium cellulase and Optimash BG were used for enzymatic saccharification. The viscosity of ILs and their mixtures with OSs was reduced by adding and increasing the OS amount in mixtures. The viscosity of [BMIM]Br was considerably decreased by the addition of OSs. For both species, the water-soluble fractions (WSFs) obtained using pure ILs decreased with increasing OS content in mixtures. For all co-solvent systems, the WSFs for pussy willow were twice as large as those for Korean pine. For both species, the yields of glucose and xylose were higher for [EMIM]Ac and its mixtures with OSs than for [BMIM]Br, [MMIM]MeSO4, and their mixtures. However, only small differences between glycan and xylose yields among the products pretreated by [BMIM]Br, [MMIM]MeSO4, and their mixtures were observed. The overall xylose yields for pussy willow were higher than those for Korean pine for all pretreatments because xylan is the main hemicellulose component of hardwood.
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2

Zhou, Weizheng, Zhongming Wang, Md Asraful Alam, et al. "Repeated Utilization of Ionic Liquid to Extract Lipid from Algal Biomass." International Journal of Polymer Science 2019 (January 9, 2019): 1–7. http://dx.doi.org/10.1155/2019/9209210.

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In this work, different kinds of ionic liquids and reaction conditions for the extraction of lipid from microalgae biomass were optimized and repeated use of ionic liquids for microalgal lipid extraction was evaluated. Morphological changes of microalgae cells were compared in terms of pre- and post-treatment to understand the mechanisms of ionic liquid treatment. Ionic liquid [BMIM][MeSO4] showed the best lipid extraction efficiency at 70°C and with reaction time of 2 hours. The ratios (ILs : methanol) of 1 : 7 and 1 : 3 were the optimum ratios to complete the extraction of the lipids from microalgae. The initial 50% volume fraction of [BMIM][MeSO4] was 16.04% of dry weight, which showed the highest five average extraction rates. The loss of ionic liquid in the reaction system and the increase in water content of ionic liquids were considered as the main reasons for the decrease in the extraction rate. It is suggested that the potential of lipid extraction in this IL-methanol co-solvent system is promising due to the high efficiency, low cost, safety, environmental protection, and other characteristics.
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3

Zhang, Lili, Pei Peng, Qian Pan, Fang Wan, and Huaxin Zhang. "Extraction of Dibenzyl Disulfide from Transformer Oils by Acidic Ionic Liquid." Molecules 29, no. 10 (2024): 2395. http://dx.doi.org/10.3390/molecules29102395.

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In recent years, dibenzyl disulfide (DBDS) in transformer oils has caused many transformer failures around the world, and its removal has attracted more attention. In this work, nine imidazolium-based ionic liquids (ILs) were applied as effective, green desulfurization extractants for DBDS-containing transformer oil for the first time. The results show that the desulfurization ability of the ILs for DBDS followed the order of [BMIM]FeCl4 > [BMIM]N(CN)2 > [BMIM]SCN > [BMIM](C4H9O)2PO2 > [BMIM]MeSO4 > [BMIM]NTf2 > [BMIM]OTf > [BMIM]PF6 > [BMIM]BF4. Especially, [BMIM]FeCl4 ionic liquid had excellent removal efficiency for DBDS, with its S partition coefficient KN (S) being up to 2642, which was much higher than the other eight imidazolium-based ILs. Moreover, the extractive performance of [BMIM]FeCl4 increased with an increasing molar ratio of FeCl3 to [BMIM]Cl, which was attributed to its Lewis acidity and fluidity. [BMIM]FeCl4 ionic liquid could also avail in the desulfurization of diphenyl sulfide (DPS) from model oils. The experimental results demonstrate that π−π action, π-complexation, and Lewis acid−base interaction played important roles in the desulfurization process. Finally, the ([BMIM]FeCl4) ionic liquid could be recycled five times without a significant decrease in extractive ability.
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4

Lin, Pei-Yin, Allan N. Soriano, Alvin R. Caparanga, and Meng-Hui Li. "Molar heat capacity and electrolytic conductivity of aqueous solutions of [Bmim][MeSO4] and [Bmim][triflate]." Thermochimica Acta 496, no. 1-2 (2009): 105–9. http://dx.doi.org/10.1016/j.tca.2009.07.006.

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5

Yim, Joon-Hyuk, Seung-Jae Ha, and Jong Sung Lim. "Measurement and correlation of CO2 solubility in 1-butyl-3-methylimidazolium ([BMIM]) cation-based ionic liquids: [BMIM][Ac], [BMIM][Cl], [BMIM][MeSO4]." Journal of Supercritical Fluids 138 (August 2018): 73–81. http://dx.doi.org/10.1016/j.supflu.2018.04.004.

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6

Belesov, Artyom V., Natalya V. Shkaeva, Mark S. Popov, et al. "New Insights into the Thermal Stability of 1-Butyl-3-methylimidazolium-Based Ionic Liquids." International Journal of Molecular Sciences 23, no. 18 (2022): 10966. http://dx.doi.org/10.3390/ijms231810966.

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One of the most promising applications of ionic liquids (ILs) with 1-butyl-3-methylimidazolium (bmim) cation is based on their unique ability to dissolve and fractionate lignocellulosic biomass, allowing for the development of green biorefining technologies. A complete dissolution of lignocellulose requires prolonged treatment at elevated temperatures, which can cause the partial degradation of ILs. In the present study, a combination of various analytical techniques (GC-MS, HPLC-HRMS, 2D-NMR, synchronous thermal analysis) was used for the comprehensive characterization of bmim acetate, chloride, and methyl sulfate degradation products formed at 150 °C during 6- and 24-h thermal treatment. A number of volatile and non-volatile products, including monomeric and dimeric alkyl substituted imidazoles, alcohols, alkyl amines, methyl and butyl acetates, and N-alkylamides, was identified. By thermal lability, ILs can be arranged in the following sequence, coinciding with the decrease in basicity of the anion: [bmim]OAc > [bmim]Cl > [bmim]MeSO4. The accumulation of thermal degradation products in ILs, in turn, affects their physico-chemical properties and thermal stability, and leads to a decrease in the decomposition temperature, a change in the shape of the thermogravimetric curves, and the formation of carbon residue during pyrolysis.
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7

Belesov, Artyom V., Anton V. Ladesov, Ilya I. Pikovskoi, Anna V. Faleva, and Dmitry S. Kosyakov. "Characterization of Ionic Liquid Lignins Isolated from Spruce Wood with 1-Butyl-3-methylimidazolium Acetate and Methyl Sulfate and Their Binary Mixtures with DMSO." Molecules 25, no. 11 (2020): 2479. http://dx.doi.org/10.3390/molecules25112479.

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Ionic liquids (ILs) based on 1-butyl-3-methylimidazolium (bmim) cation have proved to be promising solvents for the fractionation of plant biomass with the production of cellulose and lignin. This study deals with the characterization of lignins isolated from coniferous (spruce) wood using [bmim]OAc and [bmim]MeSO4 ionic liquids and their binary mixtures with DMSO (80:20). Molecular weight distributions, functional composition, and structural features of IL lignins were studied by size-exclusion chromatography, NMR spectroscopy (1D and 2D) and atmospheric pressure photoionization high-resolution mass spectrometry. It was shown that the interaction of ILs with lignin leads to significant chemical changes in the biopolymer; a decrease in the degree of polymerization and in the content of free phenolic hydroxyl groups due to alkylation, the disappearance (in the case of [bmim]OAc) of carbonyl groups and a significant destruction of β-O-4 bonds. The chemical reactions between lignin and 1-butyl-3-methylidazolium cation with covalent binding of ionic liquids or products of their decomposition is evidenced by the presence of a large number of nitrogen-containing oligomers in IL lignins.
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8

Pereiro, Ana B., and Ana Rodríguez. "Azeotrope-breaking using [BMIM] [MeSO4] ionic liquid in an extraction column." Separation and Purification Technology 62, no. 3 (2008): 733–38. http://dx.doi.org/10.1016/j.seppur.2008.03.015.

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9

Kim, Young-Hoo, Saerom Park, Min Hoo Kim, et al. "Ultrasound-assisted extraction of lipids from Chlorella vulgaris using [Bmim][MeSO4]." Biomass and Bioenergy 56 (September 2013): 99–103. http://dx.doi.org/10.1016/j.biombioe.2013.04.022.

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10

Shiflett, Mark B., Anne Marie S. Niehaus, and A. Yokozeki. "Separation of CO2and H2S Using Room-Temperature Ionic Liquid [bmim][MeSO4]." Journal of Chemical & Engineering Data 55, no. 11 (2010): 4785–93. http://dx.doi.org/10.1021/je1004005.

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11

Kheiri, Alireza, Alireza Afsharpour, and Mohammad Bagher Zare Talavaki. "Modeling of acid gases solubility in ionic liquid [BMIM][MeSO4] using CPA EoS." Petroleum Science and Technology 36, no. 4 (2018): 319–25. http://dx.doi.org/10.1080/10916466.2017.1421974.

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12

Shiflett, Mark B., and A. Yokozeki. "Separation of Carbon Dioxide and Sulfur Dioxide Using Room-Temperature Ionic Liquid [bmim][MeSO4]." Energy & Fuels 24, no. 2 (2010): 1001–8. http://dx.doi.org/10.1021/ef900997b.

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13

Planeta, Josef, Lenka Št'avíková, Pavel Karásek, and Michal Roth. "Limiting Partition Coefficients of Sulfur-Containing Aromatics in a Biphasic [bmim][MeSO4]−Supercritical CO2System." Journal of Chemical & Engineering Data 56, no. 3 (2011): 527–31. http://dx.doi.org/10.1021/je1010642.

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14

Park, Jung Hee, Ik Keun Yoo, O. Yul Kwon, and Keungarp Ryu. "Partial uncompetitive inhibition of horseradish peroxidase by a water-miscible ionic liquid [BMIM][MeSO4]." Biotechnology Letters 33, no. 8 (2011): 1657–62. http://dx.doi.org/10.1007/s10529-011-0618-4.

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15

Missoun, Fatiha, Antonia Pérez de los Ríos, Víctor Ortiz-Martínez, María José Salar-García, Jesús Hernández-Fernández, and Francisco José Hernández-Fernández. "Discovering Low Toxicity Ionic Liquids for Saccharomyces cerevisiae by Using the Agar Well Diffusion Test." Processes 8, no. 9 (2020): 1163. http://dx.doi.org/10.3390/pr8091163.

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Ionic liquids (ILs) are new solvents widely used in many technologies due to their unique and advantageous physicochemical properties. In biotechnological applications, ILs can be used along with microorganisms such as Saccharomyces cerevisiae. Due to the enormous number of ILs that can be synthesized through the combination of different anions and cations, it is necessary to have an easy and quick tool for the preliminary screening of their biocompatibility for being used in biotechnological applications. In this work, the agar well diffusion test was successfully applied as a rapid method to identify toxic/nontoxic ILs toward S. cerevisiae. Sixty-three ILs containing a diverse set of cations and anions were used. Through this methodology, nine fully biocompatible ILs toward S. cerevisiae were identified, including: [Bmim+] [NO3−], [HOPmim+] [NO3−], [Bmim+] [NTf2−], [N8,8,8,1+] [NTf2−], [S2,2,2+] [NTf2−], [EMPyr+] [NTf2−], [BMPi+] [NTf2−], [Moxa+] [MeSO4−] and [Chol+] [H2PO4−]. The analysis of the results also provides preliminary rules to enable the design of biocompatible ILs with S. cerevisiae. In this context, the toxicity was mainly determined by the cation nature although some anions can also display a strong influence on the IL biocompatibility as the bistriflimide anion. Besides, it was observed that an increase in the alkyl chain length of cations, such as imidazolium or pyridinium, involves an increase in the IL toxicity.
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16

Fernández, Adela, Julián García, José S. Torrecilla, Mercedes Oliet, and Francisco Rodríguez. "Volumetric, Transport and Surface Properties of [bmim][MeSO4] and [emim][EtSO4] Ionic Liquids As a Function of Temperature." Journal of Chemical & Engineering Data 53, no. 7 (2008): 1518–22. http://dx.doi.org/10.1021/je8000766.

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17

Krawczyk, Marek, Kamil Kamiński, and Jerzy Petera. "Experimental and numerical investigation of electrostatic spray liquid-liquid extraction with ionic liquids." Chemical and Process Engineering 33, no. 1 (2012): 167–83. http://dx.doi.org/10.2478/v10176-012-0015-0.

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Experimental and numerical investigation of electrostatic spray liquid-liquid extraction with ionic liquids A new concept of an electrostatic spray column for liquid-liquid extraction was investigated. An important problem for separation processes is the presence of azeotropic or close-boiling mixtures in their production, for example heptane with ethanol, since the separation is impossible by ordinary distillation. The use of ionic liquids (IL) as a dispersed solvent specially engineered for any specific organic mixture in terms of selectivity is a key factor to successful separation. As IL present particularly attractive combination of favorable characteristics for the separation of heptane and ethanol, in this work we use 1-butyl-3-methylimidazolium methyl sulfate [BMIM][MeSO4]. Because of high viscosity and relatively high cost of IL a new technique was introduced, consisting in the electrostatically spray generation to enhance the mass transport between the phases. In order to optimally design the geometry of the contactor a series of numerical simulation was performed. Especially multi-nozzle variants for better exploitation of contactor volume were investigated. Experiments showed excellent possibility of control of the dispersion characteristics by applied voltage and thus control of the rate of extraction. The preliminary simulations based on our mathematical model for a three nozzle variant exhibited visual agreement with the theory of electrostatics.
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18

Torrecilla, José S., Ester Rojo, Julián García, Mercedes Oliet, and Francisco Rodríguez. "Determination of Toluene,n-Heptane, [emim][EtSO4], and [bmim][MeSO4] Ionic Liquids Concentrations in Quaternary Mixtures by UV−vis Spectroscopy." Industrial & Engineering Chemistry Research 48, no. 10 (2009): 4998–5003. http://dx.doi.org/10.1021/ie8014044.

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19

Afandak, Azam, and Hossein Eslami. "Ion-Pairing and Electrical Conductivity in the Ionic Liquid 1-n-Butyl-3-methylimidazolium Methylsulfate [Bmim][MeSO4]: Molecular Dynamics Simulation Study." Journal of Physical Chemistry B 121, no. 32 (2017): 7699–708. http://dx.doi.org/10.1021/acs.jpcb.7b06039.

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20

Chakraborti, Asit, Sudipta Roy, Pradeep Jadhavar, Kapileswar Seth, and Kulin Sharma. "Organocatalytic Application of Ionic Liquids: [bmim][MeSO4] as a Recyclable Organocatalyst in the Multicomponent Reaction for the Preparation of Dihydropyrimidinones and -thiones." Synthesis 2011, no. 14 (2011): 2261–67. http://dx.doi.org/10.1055/s-0030-1260067.

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21

Roy, Sudipta Raha, Pradeep S. Jadhavar, Kapileswar Seth, Kulin K. Sharma, and Asit K. Chakraborti. "ChemInform Abstract: Organocatalytic Application of Ionic Liquids: [bmim][MeSO4] as a Recyclable Organocatalyst in the Multicomponent Reaction for the Preparation of Dihydropyrimidinones and -thiones." ChemInform 42, no. 47 (2011): no. http://dx.doi.org/10.1002/chin.201147149.

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22

Chakraborti, Asit K., Sudipta Raha Roy, Dinesh Kumar, and Pradeep Chopra. "Catalytic application of room temperature ionic liquids: [bmim][MeSO4] as a recyclable catalyst for synthesis of bis(indolyl)methanes. Ion-fishing by MALDI-TOF-TOF MS and MS/MS studies to probe the proposed mechanistic model of catalysis." Green Chemistry 10, no. 10 (2008): 1111. http://dx.doi.org/10.1039/b807572g.

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23

Mozaffari, Farkhondeh. "Molecular dynamics simulation of the structure and dynamics in mixtures of ionic liquids and alcohols." Physical Chemistry Chemical Physics, 2024. https://doi.org/10.1039/d4cp03215b.

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Molecular dynamics simulations were conducted on mixtures of ionic liquid (IL) and alcohols, specifically methanol, ethanol, and 1-propanol. Two different ILs, [Mmim][MeSO4] and [Bmim][MeSO4], were used at varying alcohol mole...
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24

"Thermophysical and thermodynamic properties of binary liquid systems of [BMIM]+[MeSO4]−ionic liquid with carboxylic acids." Indian Journal of Chemistry -Section A 59, no. 8 (2020). http://dx.doi.org/10.56042/ijca.v59i8.29841.

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25

Shamsuri, Ahmad Adlie, Khalina Abdan, and Tatsuo Kaneko. "The Effect of Imidazolium-Based Ionic Liquids on the Tensile Properties of Gellan Gum/KCF Biocomposite Films - A Prelude Study." Asian Journal of Physical and Chemical Sciences, March 11, 2021, 1–10. http://dx.doi.org/10.9734/ajopacs/2021/v9i130126.

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In this prelude study, the gellan gum/kenaf core fiber (KCF) biocomposite films were fabricated with the addition of imidazolium-based ionic liquids such as 1-butyl-3-methylimidazolium chloride (Bmim Cl), 1,3-dimethylimidazolium methylsulphate (Dmim MeSO4), 1-ethyl-3-methylimidazolium acetate (Emim Ac), and 1-ethyl-3-methylimidazolium trifluoromethanesulfonate (Emim OTf). The fabrication of the biocomposite films was carried out by mixing KCF and the ionic liquids in an aqueous solution, followed by dissolution of gellan gum in the same solution at a temperature of 90°C. The mixed solution was gelled at room temperature, and the formed gel was dried in an oven at 40°C for 48 hours to obtain a freestanding biocomposite film. The fabricated films were characterized by using a universal testing machine to acquire tensile properties. The tensile test results indicated that the biocomposite film added with Emim Ac possesses a higher tensile extension at maximum (up to 24%) than the biocomposite film without ionic liquid (added with glycerol). In addition, the biocomposite film added with Emim OTf has a higher tensile modulus at maximum (up to 758%) compared to the biocomposite film without ionic liquid. In conclusion, the tensile properties of the gellan gum/KCF biocomposite films can be improved with the addition of Emim-based ionic liquids with different counter anions.
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26

Shamsuri, Ahmad Adlie. "The Effect of Imidazolium-Based Ionic Liquids on the Tensile Properties of Gellan Gum/KCF Biocomposite Films - A Prelude Study." March 11, 2021. https://doi.org/10.5281/zenodo.6976005.

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In this prelude study, the gellan gum/kenaf core fiber (KCF) biocomposite films were fabricated with the addition of imidazolium-based ionic liquids such as 1-butyl-3-methylimidazolium chloride (Bmim Cl), 1,3-dimethylimidazolium methylsulphate (Dmim MeSO4), 1-ethyl-3-methylimidazolium acetate (Emim Ac), and 1-ethyl-3-methylimidazolium trifluoromethanesulfonate (Emim OTf). The fabrication of the biocomposite films was carried out by mixing KCF and the ionic liquids in an aqueous solution, followed by dissolution of gellan gum in the same solution at a temperature of 90°C. The mixed solution was gelled at room temperature, and the formed gel was dried in an oven at 40°C for 48 hours to obtain a freestanding biocomposite film. The fabricated films were characterized by using a universal testing machine to acquire tensile properties. The tensile test results indicated that the biocomposite film added with Emim Ac possesses a higher tensile extension at maximum (up to 24%) than the biocomposite film without ionic liquid (added with glycerol). In addition, the biocomposite film added with Emim OTf has a higher tensile modulus at maximum (up to 758%) compared to the biocomposite film without ionic liquid. In conclusion, the tensile properties of the gellan gum/KCF biocomposite films can be improved with the addition of Emim-based ionic liquids with different counter anions.
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27

Chakraborti, Asit K., Sudipta Raha Roy, Dinesh Kumar, and Pradeep Chopra. "ChemInform Abstract: Catalytic Application of Room Temperature Ionic Liquids: [bmim][MeSO4] as a Recyclable Catalyst for Synthesis of Bis(indolyl)methanes: Ion-Fishing by MALDI-TOF-TOF MS and MS/MS Studies to Probe the Proposed Mechanistic Model of Catalysis." ChemInform 40, no. 7 (2009). http://dx.doi.org/10.1002/chin.200907125.

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