Analyte focusing in capillary electrophoresis using on-line isotachophoresis von Stegehuis, D.S., Tjaden, U.R., van der Greef, J.

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Isotachophoresis as an on-line concentration pretreatment technique in capillary electrophoresis von Stegehuis, D.S., Irthu, H., Tjaden, U.R., Van Der Greef, J.

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Bioanalysis of the peptide de-enkephalin-γ-endorphin : On-line sample pretreatment using membrane dialysis and solid-phase isolation von Stegehuis, D.S., Tjaden, U.R., van der Greef, J.

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Sample pretreatment in peptide bioanalysis von Stegehuis, D.S., Tjaden, U.R., van der Greef, J.

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Bioanalysis of the neuropeptide des-enkephalin-γ-endorphin by high-performance liquid chromatography with on-line sample pretreatment using gel permeation and solid-phase isolation... von Stegehuis, D.S., Tjaden, U.R., Van den Beld, C.M.B., Van der Greef, J.

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Bioanalysis of the peptide de-enkephalin-γ-endorphin von Stegehuis, D.S., Tjaden, U.R., van der Greef, J.

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Isotachophoresis as sample pretreatment for capillary electrophoresis von Reinhoud, N.J., Stegehuis, D.S., Irth, H., Tjaden, U.R., van der Greef, J.

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Determination of some β-endorphin fragments in human plasma by high-performance liquid chromatography with laser induced fluorescence detection von van den Beld, C.M.B., Tjaden, U.R., Reinhoud, N.J., Stegehuis, D.S., van der Greef, J.

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