Single drop microextraction

In the past decade, several novel solvent-based microextraction techniques have been developed and applied to environmental and biological analysis. Notable approaches are single-drop microextraction,147 small volume extraction in levitated drops,148 flow injection extraction,149 150 and microporous membrane- or supported liquid membrane-based two- or three-phase microextraction.125 151-153 The two- and three-phase microextraction techniques utilizing supported liquid membranes deposited in the pores of hollow fiber membranes are the most explored for analytes of wide ranging polarities in biomatrices. This discussion will be limited to these protocols. [Pg.35]

So far, LSE is the most popular for extracting contaminants in food. However, over the last years LPME in its different application modes (single drop microextraction, dispersive liquid-liquid microextraction and hollow fiber-LPME) has been increasingly applied to food analysis because of its simplicity, effectiveness, rapidity, and low consumption of organic solvents. Different applications have been recently reviewed by Asensio-Ramos et al. [112]... [Pg.23]

To enhance extraction efficiency in the SME system (also called single-drop microextraction [SDME]), He and Lee developed a procedure termed liquid-phase microextraction (LPME),89 which, in its static mode, resembles the SME system. [Pg.71]

Solvent Liquid/liquid extraction (LLE) Steam distillation/extraction (SDE) Solvent microextraction (SME) - SDME - LPME - DLLME Headspace-solvent-microextraction (HS-SME) - Headspace single-drop microextraction (HS-SDME) - Headspace liquid phase microextraction (HS-LPME) ... [Pg.319]

Psillakis, E. and N. Kalogerakis. 2001. Solid-phase microextraction versus single-drop microextraction for the analysis of nitroaromatic explosives in water samples. J. Chromatogr. A 938 113-120. [Pg.365]

Lopez-Bianco, M.C., S. Blanco-Cid, B. Cancho-Grande, and J. Simal-Gandara. 2003. Application of single-drop microextraction and comparison with solid-phase microextraction and solid-phase extraction for the determination of a- and [1-endosulfan in water samples by gas chromatography-electron-capture detection. J. Chromatogr. A 984 245-252. [Pg.468]

Saraji and Mousavinia (2006) developed an efficient in-syringe derivatization step for fiaiit juices and fruits. The parameters for insyringe derivatization optimized with phenolic standards were found to be 10 min at room temperature with 0.7 pL A,0-Z A(trimethylsilyl) acetamide (BSA). Before derivatization, the samples underwent single-drop microextraction, where small volumes of organic solvents were used to extract analytes. The advantage of this approach is that it creates reduced risks for sample loss and contamination. [Pg.51]

Saraji, M. Mousavinia, F. 2006. Single-drop microextraction followed by in-syringe derivatization and gas chromatography-mass spectrometric detection for determination of organic acids in fruits and fruit juices. J. Sep. Sci. 29 1223-1229. [Pg.66]

The most useful method for solvent residue analysis is GC. It can be performed by direct injection technique, or by headspace, solid phase microextraction (SPME), or single-drop microextraction (SOME) techniques [96]. GC has high selectivity, good specificity, is easy to perform, and involves simple sample preparation. Modem capillary GC allows separation of many compounds, together with their identification and quantification [96]. GC uses different detector systems, which are presented in Table 8.7. [Pg.197]

Romero, J., Lopez, P., Rubio, C., Batlle, R., Nerin, C. Strategies for single-drop microextraction optimisation and validation application to the detection of potential antimicrobial agents. J. Chromatogr. A 1166, 24—29 (2007)... [Pg.367]

PsillaMs, E., Kalogerakis, N. Developments in single-drop microextraction. Trends Anal. Oiem. 21, 53-63 (2002)... [Pg.367]

Fan, Z. Determination of antimony(ni) and total antimony by single-drop microextraction combined with electrothermal atomic absorption spectrometry. Anal. Chim. Acta 585, 300-304 (2007)... [Pg.367]

In 1978, Karlberg and Thelander [5] described the flow injection extraction (FIE) technique, and in 1979 Murray [6] improved the microextraction, reducing the amount of solvent to 200 pL. The main disadvantage of these methods was the necessity to use complicated equipment. Jeannot and Cantwell [7] and, independently, Hee and Lee [8] introduced a simpler kind of microextraction in which a solvent drop is applied, single drop microextraction (SOME). They designed a microreactor with 8 pL of -octane in a Teflon tube (Fig. 14.3) [7]. The authors performed measurements of diffusion coefficients and the kinetics of the system, which suggested a mass transfer model. [Pg.406]

Ponnusamy, V.K., Ramkumar, A., Jen, J.E. Microwave assisted headspace controlled-temperature single drop microextraction for liquid chromatographic determination of chlorophenols in aqueous samples. Microchim. Acta 179, 141-148 (2012)... [Pg.423]

Tian, F., Liu, W., Fang, H., An, M., Duan, S. Determination of six organophosphorus pesticides in water by single-drop microextraction coupled with GC-NPD. Chromatographia 77, 487 92 (2014)... [Pg.423]

Fernandes, V.C., Subramanian, V., Mateus, N., Domingues, V.F., Deleme-Matos, C. The development and optimization of a modified single-drop microextraction method for organo-chlorine pesticides determination by gas chromatography-tandem mass spectrometry. Microchim. Acta 178, 195-202 (2012)... [Pg.423]

Park, Y.K., Chung, W.Y., Kim, B., Kye, Y., Shin, M., Kim, D. Ion-pair single-drop microextraction determinations of degradation products of chemical warfare agents in water. Chromatographia 76, 679-685 (2013)... [Pg.423]

Hu, M., Chen, H., Jiang, Y., Zhu, H. Headspace single-drop microextraction coupled with gas chromatography electron capture detection of butanone derivative for determination of iodine in milk powder and urine. Chem. Pap. 67(10), 1255-1261 (2013)... [Pg.423]

Enteshari, M., Mohammadi, A., Nayebzadeh, K., Azadniya, E. Optimization of headspace single-drop microextraction coupled with gas chromatography-mass spectrometry for determining volatile oxidation compounds in mayonnaise by response surface methodology. Food Anal. Methods 7,438-448 (2014)... [Pg.423]

Zhou, Q., Ye, C. Ionic liquid for improved single-drop microextraction of aromatic amines in water samples. Microchim. Acta 162, 153-159 (2008)... [Pg.424]

Psillakis, E. and Kalogerakis, N., Solid-phase microextraction versus single-drop microextraction for the analysis of nitroaromatic explosives in water samples, J. Chromatogr. A, 938, 113-120, 2001. Petersson, M., Wahlund, K. G., and Nilsson, S., Miniaturised online SPE for enhancement of concentration sensitivity in capillary electrophoresis, J. Chromatogr. A, 841, 249-261, 1999. [Pg.117]

Das, P., Gupta, M., Jain, A. Verma, K. K. (2004). Single Drop Microextraction Or Solid Phase Microextraction-Gas Chromatography-Mass Sp>ectrometiy For The Determination Of Iodine In Pharmaceuticals, Iodized Salt, Milk Powder And Vegetables Involving Conversion Into 4-Iodo-N,N-Dimethylaniltne. J. Chromatogr. A, Vol.1023, pp 33-39, ISSN 00219673... [Pg.391]

Marquez-Sillero, I. Aguilera-Herrador, E. Cardenas, S. Valcarcel, M., Determination of 2,4,6-tricholoroanisole in water and wine samples by ionic liquid-based single-drop microextraction and ion mobility spectrometry, Chim. Acta 2011, 702(2), 199-204. [Pg.346]

Determination of 2,4,6-tricholoroanisole in water and wine samples by ionic liquid-based single-drop microextraction and ion mobility spectrometry. Arudytica Chimica... [Pg.141]

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