binder

in chromatography
https://doi.org/10.1351/goldbook.B00647
An
additive
used to hold the solid stationary phase to the inactive plate or sheet in
thin-layer chromatography
.
Source:
PAC, 1993, 65, 819. (Nomenclature for chromatography (IUPAC Recommendations 1993)) on page 830 [Terms] [Paper]