Adaptation of moving‐wire flame ionization detector to accept total effluent in micro‐liquid chromatography

Tsuda, Toshitaka; Nago, A.; Nakagawa, Genkichi; Maseki, Mitsuaki

doi:10.1002/jhrc.1240061213

Cited by 14 publications

(7 citation statements)

References 4 publications

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“…The direction of vosm depends on the sign of the surface charge of the packing materials, and its value depends on the amount of surface charge, pH, concentration of electrolyte in the eluent, composition of the eluent, etc. [8,10,11].…”

Section: Resultsmentioning

confidence: 99%

“…In general, vOSm [15,16] and vmob [11,17] are expressed as (7) where E (defined as E = E~D ) and D are the (dimensionless) dielectric constant or relative permittivity (D = E / E , where c0 is the permittivity of free space), and AE, {, and C* are potential gradient, zeta potential, viscosity, and a constant, respectively. The value of 7 for 40% methanol/water solution at 20°C is about 1.8 cP, and the value gradually decreases to ca.…”

Section: Microcolumn Separations Vol 6 No 2 1994mentioning

confidence: 99%

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Effects of pH and organic solvent on chromatographic behavior in capillary electrochromatography

Kitagawa

Tsuda

1994

J Microcolumn Separations

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Abstract. Electrochromatography is demonstrated using a 50 pm i.d. capillary column. The separation of solutes due to their different mobilities is obtained by the application of high voltage along the column. The elution times of solutes are dependent on the pH and composition of the eluent. Both electrophoretic and electroosmotic flow velocities are almost constant between 30 and 90% methanol in the eluent, and they increase with more than 90% methanol. The pH dependence of the electroosmotic flow velocity may be related to the dissociation of unreacted silanol groups on the surface of the ODs-silica particles.

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Section: Resultsmentioning

confidence: 99%

Section: Microcolumn Separations Vol 6 No 2 1994mentioning

confidence: 99%

Effects of pH and organic solvent on chromatographic behavior in capillary electrochromatography

Kitagawa

Tsuda

1994

J Microcolumn Separations

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“…The first approach has the main disadvantage of the very likely risk of sample loss and is therefore hardly applied as an interface. Tsuda et al [189] and Veening et al [190] have reported on the use of a moving-wire flame ionization detector for capillary and micro LC, respectively. Typical mass limits of detection were 10-20 ng for triolin with the capillary LC system, and 160 and 400 ng for xylose and lactose with the micro LC system.…”

Section: Gas Chromatographic Detectorsmentioning

confidence: 99%

Microcolumn liquid chromatography: instrumentation, detection and applications

Vissers¹,

Claessens

Cramers

1997

Journal of Chromatography A

208

101

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This review discusses many different aspects of microcolumn liquid chromatography (LC) and reflects the areas of microcolumn LC research interest over the past decades. A brief theoretical discussion on a number of major issues, such as column characterisation, chromatographic dilution effects and extracolumn band broadening in microcolumn LC is given. Recent progress in column technology and the demands and developments of instrumentation and accessories for microcolumn LC are also reviewed. Besides that, the developments in a large number of established and also more recent detection techniques for microcolumn LC are also discussed. The potential of hyphenation of microcolumn LC with other techniques, more particularly of multidimensional chromatography and microcolumn LC coupled to mass spectrometry is reviewed. Finally, the perspective of microcolumn LC separation methods is stressed by a number of relevant applications.

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“…The analytes should be nonvolatile to be seen by the FID. Tsuda et al (117) and Veening et al (118) combined mLC and FID via a moving-wire interface. All these systems had a complex design and the loss of volatile analytes during solvent evaporation did not make them very useful.…”

Section: Htlc-fid (Flame Ionization Detection)mentioning

confidence: 99%