✦ LIBER ✦

Pressurized flow-driven capillary electrochromatography using ion exchange resins

✍ Scribed by Shinya Kitagawa; Akira Tsuji; Hirokazu Watanabe; Masakuni Nakashima; Takao Tsuda

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 225 KB
Volume: 9
Category: Article
ISSN: 1040-7685
DOI: 10.1002/(sici)1520-667x(1997)9:5<347::aid-mcs2>3.0.co;2-1

No coin nor oath required. For personal study only.

✦ Synopsis

Capillary electrochromatography using cation and anion exchange resins under pressurized flow is demonstrated to be applied to the separation of charged solutes, such a lanthanide ions. The typical variation of elution order for the mixture of sulfite, sulfate, and thiosulfate ions, the reduction and extension of elution times due to the application of high voltage, and the simultaneous separation of cations and anions are demonstrated. A minor component appears by shifting the elution time of a major component while applying a high electric field. The electric resistance of the column was measured under electrochromatographic conditions, and its dependence on the applied voltage has been discovered. From the relationship between elution times and applied voltage, the sum of electrophoretic mobility of an ion and electroosmotic mobility is estimated for landthanide cations. The capacity factor in electrochromatography is found to depend, to some extent, on the potential gradient.

📜 SIMILAR VOLUMES

Pressurized flow driven electrochromatog

Pressurized flow driven electrochromatography using fluorinated-bonded silica

✍ C. Chaiyasut; T. Tsuda; S. Kitagawa; H. Wada; T. Monde; Y. Nakabeya 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 109 KB

Capillary electrochromatography using fluorinated-bonded silica Fluo-ᮋ . fix under pressurized flow was demonstrated to be applied to the separation of charged compounds and neutral compounds. The reduction and extension of the elution time due to the application of high voltage were demonstrated. T

Automated capillary electrochromatograph

Automated capillary electrochromatography tandem mass spectrometry using mixed mode reversed-phase ion-exchange chromatography columns

✍ Valerie Spikmans; Stephen J. Lane; Ubbo R. Tjaden; Jan van der Greef 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 190 KB 👁 2 views

An automated injection system for capillary electrochromatography (CEC), combined with a short in-house designed and constructed micro-electrospray CEC mass spectrometry interface, for automated CEC/MS(/MS), electro-osmotic flow (EOF) infusion and flow-injection analysis, is coupled to an electrospr

Manipulation of separation selectivity f

Manipulation of separation selectivity for alkali metals and ammonium in ion-exchange capillary electrochromatography using a suspension of cation exchange particles in the electrolyte as a pseudostationary phase

✍ Michael C. Breadmore; Miroslav Macka; Paul R. Haddad 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 145 KB 👁 2 views

Enhanced production of L-(+)-lactic acid

Enhanced production of L-(+)-lactic acid in chemostat by Lactobacillus casei DSM 20011 using ion-exchange resins and cross-flow filtration in a fully automated pilot plant controlled via NIR

✍ Antonio González-Vara y R.; Giuseppe Vaccari; Elisabetta Dosi; Antonio Trilli; M 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 196 KB 👁 2 views

Due to the lack of suitable in-process sensors, on-line monitoring of fermentation processes is restricted almost exclusively to the measurement of physical parameters only indirectly related to key process variables, i.e., substrate, product, and biomass concentration. This obstacle can be overcome