Pulsed amperometry is combined with this technique in analysis of sugars. Preparation of reagents for this technique include sparging and endcapping, though endcapping cannot fully prevent the peak-tailing problem encountered in one version of it. The MuDPIT technique developed by John Yates employs a multidimensional form of this technique followed by electrospray ionization tandem mass spectrometry. Invented by Csaba Horv?h, it often uses either a refractive index or UV detector. This technique employs "organic modifiers" to control the polarity of the mobile phase in its "reverse phase" variety, and it also comes in "normal phase" and "ion exchange" forms. For 10 points, name this version of column chromatography in which a mobile phase that is neither solid nor gas is forced through a 
Pulsed amperometry is combined with this technique in analysis of sugars. Preparation of reagents for this technique include sparging and endcapping, though endcapping cannot fully prevent the peak-tailing problem encountered in one version of it. The MuDPIT technique developed by John Yates employs a multidimensional form of this technique followed by electrospray ionization tandem mass spectrometry. Invented by Csaba Horv?h, it often uses either a refractive index or UV detector. This technique employs "organic modifiers" to control the polarity of the mobile phase in its "reverse phase" variety, and it also comes in "normal phase" and "ion exchange" forms. For 10 points, name this version of column chromatography in which a mobile phase that is neither solid nor gas is forced through a column at a high flow rate, allowing for the analysis and separation of small molecules.
Pulsed amperometry is combined with this technique in analysis of sugars.
HPLC [or high performance liquid chromatography; or high pressure liquid chromatography; prompt on chromatography; prompt on column chromatography; prompt on liquid chromatography or LC, since as far as I know the first clue only applies to HPLC and not other forms of LC; do not accept "gas chromatography"]