Supported liquid membrane extraction

Classical LLEs have also been replaced by membrane extractions such as SLM (supported liquid membrane extraction), MMLLE (microporous membrane liquid-liquid extraction) and MESI (membrane extraction with a sorbent interface). All of these techniques use a nonporous membrane, involving partitioning of the analytes [499]. SLM is a sample handling technique which can be used for selective extraction of a particular class of compounds from complex (aqueous) matrices [500]. Membrane extraction with a sorbent interface (MESI) is suitable for VOC analysis (e.g. in a MESI- xGC-TCD configuration) [501,502]. [Pg.124]

Wang, X., C. Saridara, and S. Mitra. 2005. Microfluidic supported liquid membrane extraction. Anal. Chim. Acta 543 92-98. [Pg.93]

Lezamiz, J. and J.A. Jonsson. 2007. Development of a simple hollow fibre supported liquid membrane extraction method to extract and preconcentrate dinitrophenols in environmental samples at ng L-1 level by liquid chromatography. J. Chromatogr. A 1152 226-233. [Pg.93]

Romero, R. and J.A. Jonsson. 2005. Determination of free copper concentrations in natural waters by using supported liquid membrane extraction under equilibrium conditions. Anal. Bioanal. Chem. 381 1452-1459. [Pg.93]

Thordarson, E., J.A. Jonsson, and J. Emneus. 2000. Immunologic trapping in supported liquid membrane extraction. Anal. Chem. 72 5280-5284. [Pg.93]

Sandahl, M., L. Mathiasson, and J.A. Jonsson. 2002. On-line automated sample preparation for liquid chromatography using parallel supported liquid membrane extraction and microporous membrane liquid-liquid extraction. J. Chromatogr. A 975 211-217. [Pg.94]

SLM Supported liquid membrane extraction Nonporous Aqueous/organic/aqueous... [Pg.448]

Belkhouche, N.E., Didi, M.A., Romero, R., Jonsson, J.A. and Villemin, D. (2006) Study of new organophosphorus derivates carriers on the selective recovery of M(II) and M(III) metals, using supported liquid membrane extraction. Journal of Membrane Science, 284, 398. Schlosser, S. (1997) Method and equipment for mass and heat transfer among several liquids (in Slovak), Slovak pat. No. 278547. [Pg.533]

Membrane Techniques The interest in membrane techniques for sample preparation arose in the 1980s. Extraction selectivity makes membrane techniques an alternative to the typical sample enrichment methods of the 1990s. Different membrane systems were designed and introduced into analytical practice some more prominent examples are polymeric membrane extraction (PME), microporous membrane liquid-liquid extraction (MMLLE), and supported liquid membrane extraction (SEME) [106, 107]. Membrane-assisted solvent extraction (MASE) coupled with GC-MS is another example of a system that allows analysis of organic pollutants in environmental samples [108-111] ... [Pg.415]

Three-phase liquid membrane Supported liquid membrane extraction SLM [6,85]... [Pg.349]

Chimuka L, Megersa N, Norberg J, Mathiasson L, and Jdnsson jA. Incomplete trapping in supported liquid membrane extraction with a stagnant acceptor for weak bases. Anal. Chem. 1998 70 3906-3911. [Pg.364]

Trtic-Petrovic T and Jdnsson JA. Determination of drug-protein binding using supported liquid membrane extraction under equihbrium conditions. J. Chromatogr. B 2005 814 375-384. [Pg.365]

Jung V, Chimuka L, Jdnsson JA, Niedack N, Bowens P, and Alsanius B. Supported liquid membrane extraction for identihcation of phenolic compounds in the nutrient solution of closed hydroponic growing systems for tomato. Anal. Chim. Acta 2002 474 49-57. [Pg.365]

Dzygiel P and Wieczorek P. Extraction of glyphosate by supported liquid membrane technique. J. Chromatogr. A 2000 889 93-98. Dzygiel P and Wieczorek P. Supported liquid membrane extraction of glyphosate metabolites. J. Sep. Sci. 2001 24 561-566. [Pg.366]

Chimuka L, Cukrowska E, Soko L, and Naicker K. Supported-liquid membrane extraction as a selective sample preparation technique for monitoring uranium in complex matrix samples. J. Sep. Sci. 2003 26 601-608. [Pg.366]

Berhanu T, Liu J-F, Romero R, Megersa N, and Jonsson jA. Determination of trace levels of dinitrophenolic compounds in environmental water samples using hollow flber supported liquid membrane extraction and high performance liquid chromatography. [Pg.366]

Megersa N, Solomon T, Chandravanshi BS, and Jonsson jA. Sample clean-up, enrichment and determination of r-triazine herbicides from southern Ethiopian lakes using supported liquid membrane extraction. Bull. Chem. Soc. Ethiopia 2000 14 9-24. [Pg.366]

Dzygiel, P., Wieczorek, P., Mathiasson, L., Jonsson, J. A. (1998). Enrichment ofamino acids by supported liquid membrane extraction using Aliquat 336 as a carrier. Anal. Lett., 31, 1261-74. [Pg.129]

Zorita, S., Martensson, I., Mathiasson, L. (2007). HoUow-fiber supported liquid membrane extraction for determination of fluoxetine and norfluoxetine concentration at ultra trace level in sewage samples. J. Sep. Sci., 30, 2513-21. [Pg.132]

Zhao, G., Liu, J.-F., Nyman, M., Jonsson, J. L. (2007). Determination of short-chain fatty acids in serum by hoUow fiber supported liquid membrane extraction coupled with gas chromatography. J. Chromatogr. B, 846, 202-8. [Pg.132]

Megersa, N., Solomon, T., Jonsson, J. A. (1999). Supported liquid membrane extraction for sample work-up and preconcentration oi methoxy-s-triazine herbicides in a flow system. J. Chromatogr. A, 830, 203-10. [Pg.136]

Megersa, N., Solomon, T., Chandravanshi, B. S., Jonsson, J. A. (2000). Sample clean-up, enrichment and determination of S-triazine herbicides from southern Ethiopian lakes using supported liquid membrane extraction. BuU. Chem. Soc. Ethiopia, 14, 9-24. Megersa, N., Chimuka, L., Solomon, T., Jonsson, J. A. (2001). Automated liquid membrane extraction and trace enrichment of triazine herbicides and their metabolites in environmental and biological samples. J. Sep. Sci., 24, 567-76. [Pg.136]

Msagati, T. A. M., Nindi, M. M. (2005). Supported liquid membrane extraction of anabolic androgenic compounds in biological matrices and detection by LC-ESI-MS. South Afr. J. Chem., 58, 67-73. [Pg.137]

Kewen, T., Chunshan, Z., Xinyu, J. (2003). Racemic ofloxacin separation by supported-liquid membrane extraction with two organic phases. Sci. China Ser. B, 46, 96-103. [Pg.138]

There are different variations of the MASX technique, including supported liquid membrane extraction (SLM), microporous membrane liquid-liquid extraction (MMLLE), polymeric membrane extraction (PME) and membrane extraction with a sorbent interface (MESI). These techniques will be briefly described below. [Pg.14]

Supported- liquid membrane extraction SLM Aq/org/aq lonizable e.g. phenolic acids in nutrient solution (27,28), triazine herbicides in fruit Juices (24). [Pg.153]

The supported liquid membrane extraction is generally one of the most selective membrane based extraction techniques. Selectivity is tuned by adjusting the foctors described above. However, like other membrane based extraction techniques, so far it has been applied to mostly environmental and biological samples as seen in review articles (30,31,34). [Pg.154]

FIGURE 13.5 Enrichment factors for various aniline compounds with different p/sr -values and pH = 0 (ud = 1). (From Chimuka, L., Megersa, N., Norberg, J., Mathiasson, L., and Jonsson, J.A., Incomplete trapping in supported liquid membrane extraction with a stagnant acceptor for weak bases. Anal. Chem., 70, 3906. Copyright 1998 American Chemical Society.)... [Pg.386]

Abbreviations SLM, supported liquid membrane extraction (aq/org/aq) MMLLE, microporous membrane liquid-liquid extraction (aq/ org) PME, polymer membrane extraction (aq/polymer/org) MESI, membrane extraction with sorbent interface (aq [or gas]/ polymer/gas/sorbent) CELME, continuous flow liquid membrane extraction (aq/org [in flow]/aq) LPME2, two-phase liquid-j ase microextraction in hollow fibers (aq/org) LPME3, three-phase Uquid-phase microextraction in hollow fibers (aq/org/aq). [Pg.392]

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