Abstract: The invention is related to an image selection method comprising the following steps: a) automatically and randomly selecting (100) at least one, so-called, reminder digital image (108), amongst a collection (102) of digital images, b) automatically selecting at least one subset (130, 130a) of, so-called, linked digital images amongst the collection of images, the linked images being selected based on a similarity computation with the randomly selected reminder image, c) temporarily displaying (104) the reminder image on a display screen and stetting (106) a first user interface in an interaction detection mode whilst the reminder image is displayed, d) in response to a user interaction with the first interface whilst the reminder image is displayed, displaying simultaneously at least part of the subset of linked images determined in step b) and setting a second user interface in a selection mode in which a user can select at least one image amongst the displayed subset of linked images, e) in response to the

Abstract: A method of identifying and quantifying the chemical components of a mixture of organic material comprises subjecting the organic material to chromatography to separate the components of the mixture and subjecting the separated materials to spectrometry to detect and identify the components. A variable selection procedure is described that results in well resolved chromatography which facilitates the proper interpretation.