Abstract: Non-interfering, anionic ion pairing reagents, anionic ion pairing reagent systems, or in situ formed anionic pairing ion and in situ formed anionic pairing ion systems having volatile combustion products with O or S or halogen atoms or combinations thereof as their only heteroatoms are disclosed along with their use in analytical techniques utilizing element specific detectors. The anionic ion pairing reagents, anionic ion pairing reagent systems, or in situ formed anionic pairing ion and in situ formed anionic pairing ion systems have volatile combustion products with O or S or halogen atoms as their only heteroatoms. Also, analytical techniques are disclosed using these anionic ion pairing reagents, anionic ion pairing reagent systems, or in situ formed anionic pairing ion and in situ formed anionic pairing ion systems.

Abstract: Non-interfering, anionic cyclodetrins and anionic cyclodextrin systems having volatile combustion products including O or S or halogen atoms or combinations thereof as their only heteroatoms are disclosed that can be used in analytical techniques utilizing element specific detectors. Analytical techniques and apparatuses are also disclosed using these anionic cyclodetrins and anionic cyclodextrin systems to detect analytes.

Abstract: New non-interfering buffer and buffer systems having volatile combustion products are disclosed for use in analytical techniques utilizing element specific detectors. The new buffers and buffer systems are free of heteroatoms except for O or O and S and are free of metal salt containing counterions. Also, analytical techniques are disclosed using the new buffers and buffer systems.

Abstract: This invention is directed to isoelectric gateways for use in the alteration of the composition of the sample wherein the buffering capacity of such isoelectric gateways is not as limited as in an isoelectric membrane and the isoelectric gateways are suitably used in analytical and preparative-scale isoelectric focusing separations, or in the alteration of the composition of solutions that contain at least one amphoteric substance.

Abstract: A cyclodextrin composition of substantially pure, sulfated-cyclodextrin derivatives particularly suitable as chiral resolving agents for enantioseparation by electrophoresis. The cyclodextrin composition preferably have an isomeric purity of at least 80 mole %. Non-sulfato substituents for the substantially pure cyclodextrin derivatives are hydrogen, C1-C12 alkyl groups, C2-C8 hydroxyalkyl groups, C1-C12 alkylnitryl groups, C2-C12 acyl groups, aryl groups, carbamate groups, thiocarbamate groups or combinations thereof.

Abstract: An electrophoretic apparatus comprising:

Abstract: The invention concerns electrophoresis and methods and electrolyte compositions for decoupling or isolating the dual functions of the electrolyte composition in order to increase separation selectivity or reduce electromigration dispersion, or both. An electrolyte composition is used in electrophoresis to separate a charged analyte having a mobility .mu..sub.a in an electric field. The composition includes a buffer system having an ionic component that controls the pH of the composition and mobility matching ions having a mobility .mu..sub.2 in the electric field, such that .mu..sub.a /.mu..sub.2 equals about one. Alternatively, the buffer system may maintain the composition's pH and a complexing agent may complex with the buffer system to alter the mobility .mu..sub.2 of an ionic component of the buffer system, such that .mu..sub.a /.mu..sub.2 equals about one. The pH of the composition is within a pH range selected based on the analyte to be separated, and .mu..sub.