I got several sample tubes for free when I was in the hospital (ask the lactation consultants) and I then bought a big tube when I got home. (topbabyspot.com)
The prototype, a small sampling box attached directly to a drone, pulls in air from the surrounding environment and passes it through sampling tubes that trap VOC molecules. (seas.harvard.edu)
Using a standard inverted microscope, researchers can then lift the desired cells and transfer them into individual sample tubes or microtiter wells. (sciencemag.org)