Capillary electrophoresis sulfate

Benedek, K. and Thiede, S., High performance capillary electrophoresis of proteins using sodium dodecyl sulfate-poly(ethylene oxide), J. Chromatogr., 676, 209, 1994. 

Hunt G. and Nashabeh W., Capillary electrophoresis sodium dodecyl sulfate nongel sieving analysis of a therapeutic recombinant monoclonal antibody a biotechnology perspective, Anal. Chem. 71, 2390,1999. 

Karim, M.R., Shinagawa, S., Takagi, T. (1994). Electrophoretic mobilities of the complexes between sodium dodecyl sulfate and various peptides or proteins determined by free solution electrophoresis using coated capillaries. Electrophoresis 15, 1141-1146. 

Lin et al. [95] used capillary electrophoresis with dual cyclodextrin systems for the enantiomer separation of miconazole. A cyclodextrin-modified micellar capillary electrophoretic method was developed using mixture of /i-cyclodextrins and mono-3-0-phenylcarbamoyl-/j-cyclodextrin as chiral additives for the chiral separation of miconazole with the dual cyclodextrins systems. The enantiomers were resolved using a running buffer of 50 mmol/L borate pH 9.5 containing 15 mmol/L jS-cyclodextrin and 15 mmol/L mono-3-<9-phcnylcarbamoyl-/j-cyclodextrin containing 50 mmol/L sodium dodecyl sulfate and 1 mol/L urea. A study of the respective influence of the /i-cyclodcxtrin and the mono-3-(9-phenylcarbamoyl-/i-cyclodextrin concentration was performed to determine the optical conditions with respect to the resolution. Good repeatability of the method was obtained. 

Riu et al. [542] has reported the determination of linear ethyl benzane-sulfates in coastal waters using automated solid-phase extraction followed by capillary electrophoresis with ultraviolet detection, and confirmed by capillary electrophoresis-mass spectrometry. The detection limits were 1 pg/1 when 250 ml of coastal water was preconcentrated. 

Bergholdt, A.B., Jprgensen, K.W., Wendel, L., Lehmaim, S.V. Fast chiral separations using sulfated fS-cyclodextrin and short-end injection in capillary electrophoresis. 

Perrin, C., Vander Heyden, Y, Maftouh, M., Massart, D.L. Rapid screening for chiral separations by short-end injection capillary electrophoresis nsing highly sulfated cyclodextrins as chiral selectors. Electrophoresis 2001, 22, 3203-3215. 

Zhou, L., Thompson, R., Song, S., Elhson, D., Wyvratf J.M. A strategic approach to the development of capillary electrophoresis methods for pharmaceutical basic compounds nsing sulfated cyclodextrins. J. Pharm. Biomed. An. 2002, 27, 541-553. 

Zamfir A, Seidler DC, Kresse H, Peter-Katalinic J. 2002. Structural characterization of chondroitin/dermatin sulfate oligosaccharides from bovine aorta by capillary electrophoresis and electrospray ionization quadrupole time-of-flight tandem mass spectrometry. Rapid Commun Mass Spectrom 16 2015. 

Salas-Solano, O., Tomlinson, B., Du, S. B., Parker, M., Strahan, A., and Ma, S. (2006). Optimization and validation of a quantitative capillary electrophoresis sodium dodecyl sulfate method for quality control and stability monitoring of monoclonal antibodies. Anal. Chem. 78(18), 6583-6594. 

Wienen, F., and Holzgrabe, U. (2002). Characterization of paromomycin sulfate by capillary electrophoresis with UV detection after pre-capillary derivatization. Chromatographia 55,... 

Fabre, H., Blanchin, M. D., and Bose, N. (1999). Capillary electrophoresis for the determination of bromide, chloride and sulfate as impurities in calcium acamprosate. Anal. Chim. Acta 381, 29-37. 

Liu, H., and Sunderland, V. B. (2004). Determination of sulfate in aminoglycoside antibiotics by capillary electrophoresis with indirect UV detection. J. Liq. Chromatogr. Related Technol. 27, 677—6S7. 

Rudaz, S., Calleri, E., Geiser, L., Gherkaoui, S., Prat, J., and Veuthey, J. L. (2003). Infinite enantiomeric resolution of basic compounds using highly sulfated cyclodextrin as chiral selector in capillary electrophoresis. Electrophoresis 24, 2633—2641. 

Figure 1.9 Use of capillary electrophoresis for the analysis of amoxicillin from four suppliers (a-d). Reprinted from [18], copyright 1994, with permission from Elsevier. (AMOX is amoxicillin, AMP is ampicillin, PENV is penicillin V, DG is a degradant, and 1 and 2 are unspecified impurities. Capillary 80 cm X 50 (tm i.d. [75 cm to detector] [Polymicro Technologies] running buffer 100 mM pH 8 Na2HP04 containing 50 mM sodium dodecyl sulfate and 50 mM sodium borate voltage 18 kV injection at 100 mm for 15 s detector UV 205 nm.)...

S Izumoto, H Nishi. Enatiomer separation of drugs by capillary electrophoresis using mixtures of /3-cyclodextrin sulfate and neutral cyclodextrins. Electrophoresis 20 189-197, 1999. 

R Gotti, V Cavrini, V Anchisano, G Mascellani. Dermatan sulfate as useful chiral selector in capillary electrophoresis. J Chromatogr A 814 205-211, 1998. 

JP Ou, STH Chang, WSB Yeung. Separation of bovine serum albumin and its monoclonal antibody from their immunocomplexes by sodium dodecyl sulfate-capillary gel electrophoresis and its application in capillary electrophoresis-based immunoassay. J Chromatogr B 731 389—394, 1999. 

Micellar electrokinetic capillary chromatography (MECC), in contrast to capillary electrophoresis (CE) and capillary zone electrophoresis (CZE), is useful for the separation of neutral and partially charged species [266,267]. In MECC, a surfactant, usually sodium dodecyl sulfate (SDS), is added to the buffer solution above its critical micellar concentration to form micelles. Although SDS is certainly the most popular anionic surfactant in MECC, other surfactants such as bile salts have proved to be very effective in separating nonpolar analytes that could not be resolved using SDS [268]. 

Capillary electrophoresis has been applied by Chen and Gu (281) for simultaneous determination of oxytetracycline, tetracycline, chlortetracycline, and doxycycline residues in bovine milk. Separation was performed on a noncoated capillary column, 57 cm total length with 50 cm effective length, 75 m internal diameter (i.d.) and 375 m outside diameter (o.d.), using a mobile phase containing 10 mM sodium dodecyl sulfate, 50 mM borate, and 50 mM phosphate, pH 8.5. Under these conditions, concentrations below 10 ppb could be determined in milk using an ultraviolet spectrophotometer set at 370 nm. 

A Family of Single-Isomer, Sulfated y-Cyclodextrin Chiral Resolving Agents for Capillary Electrophoresis, Anal. Chem. 2000, 72, 310. 

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