Skip to main content
. 2019 Jul 4;9(3):85. doi: 10.3390/bios9030085

Figure 1.

Figure 1

Schematic representation of cyclic olefin copolymer (COC) chips for the color test with an optical path length of 2, 3, or 4 mm for integrated UV-VIS spectroscopy. The insets show chips with an optical path length of 4 mm. The top channel in the top right picture is filled with Allura Red.