Capillary electrophoresis probes and method

Details Capillary electrophoresis probes and method Capillary electrophoresis probes and method

2005-10-11

2005-10-11

Noguerola, Alex (Department: 1753)

Chemistry: electrical and wave energy

Processes and products

Electrophoresis or electro-osmosis processes and electrolyte...

C204S468000, C204S603000

Reexamination Certificate

active

06953520

ABSTRACT:
A novel class of capillary electrophoresis probes and a method of employing the same are described. The novel class of capillary electrophoresis probes are comprised of one or more vinylogous carboxylic acid compounds or their derivatives. In another aspect of the present invention, a method of detecting ions in water by capillary electrophoresis is provided wherein: water is introduced into a capillary filled with an electrolyte which contains UV absorbing species comprised of one or more vinylogous carboxylic acid compounds. An electric voltage is applied along the capillary to cause ions present in the water to move along the capillary and separate. The ions displace the UV absorbing species and are detected indirectly by a UV/visible light photometric detector.

REFERENCES:
patent: 4104308 (1978-08-01), Gadek et al.
patent: 4340595 (1982-07-01), Franke et al.
patent: 4478694 (1984-10-01), Weinberg
patent: 4589964 (1986-05-01), Mayhan et al.
patent: 4828983 (1989-05-01), McClune
patent: 5069766 (1991-12-01), Zhu et al.
patent: 5104506 (1992-04-01), Jones et al.
patent: 5128005 (1992-07-01), Jones et al.
patent: 5156724 (1992-10-01), Jones et al.
patent: 5215890 (1993-06-01), Theodoropulos et al.
patent: 5288811 (1994-02-01), Brois
patent: 5366601 (1994-11-01), Jones et al.
patent: 5866683 (1999-02-01), Shimura et al.
patent: 6322980 (2001-11-01), Singh
patent: 6331235 (2001-12-01), Dolphin et al.
patent: 6511850 (2003-01-01), Vigh et al.
patent: 06082423 (1994-03-01), None
patent: 09325130 (1997-12-01), None
patent: 10197481 (1998-07-01), None
patent: 11118761 (1999-04-01), None
Macka et al. “Changes in Electrolyte pH Due to Electrolysis during Capillary Zone Electrophoresis,” Anal. Chem., 70, p. 742-74 (Feb. 15, 1998).
Fukushi et al. “Determination of ascorbic acid in vegetables by capillary zone electrophoresis,” Journal of Chromatography A, 772, p. 313-320 (1997).
Allinger et al., “Chromophoric Groups” and “Conjugated Systems,” Organic Chemistry, 2nd Ed., p. 764-768 (1976).
Tu et al., “The influence of fluorescent dye structure on the electrophoretic mobility of end-labeled DNA,” Nucleic Acids Research, 1998, vol. 26, No. 11, 2797-2802.
http://www.whatislife.com/reader/dna-rna/dna-rna.html.
“Organic Acids without a Carboxylic Acid Functional Group”, G. V. Perez and Alice L. Perez, Journal of Chemical Education, vol. 77, No. 7, pp. 910-915 (Jul. 2000).
Oehrle, Stuart A., “Controlled changes in selectivity of cation separations by capillary electrophoresis using various crown-ether additives,” Journal of Chromatography A, 745 (1996), pp. 87-92.
Doble et al., “Design of background electrolytes for indirect detection of anions by capillary electrophoresis”, Trends In Analytical Chemistry, vol. 19, No. 1, 2000, pp. 10-17.
Ehmann et al., “Capillary preconditioning for analysis of anions using indirect UV detection in capillary zone electrophoresis”, “Systematic investigation of alkaline and acid prerinsing techniques by designed experiments”, Journal of Chromatography A, 816 (1998), pp. 261-275.
Fritz, James S., “Recent developments in the separation of inorganic and small organic ions by capillary electrophoresis”, Journal of Chromatography A, 884 (2000), pp. 261-275.
Pacáková et al., “Capillary electrophoresis of inorganic anions and its comparison with ion chromatography,” Journal of Chromatography A, 789 (1997), pp. 169-180.

Affiliated with

Also associated with

Rating

Capillary electrophoresis probes and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Capillary electrophoresis probes and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Capillary electrophoresis probes and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3475624