With the capacity to measure eight samples concurrently, the ND-8000 spectrophotometer allows samples as small as 1 μl to be measured without cuvettes or capillaries. Even highly concentrated samples can be measured without performing dilutions. Up to eight samples are loaded using an 8-channel pipettor. Each of the samples is assessed at two different path-lengths to achieve an extensive dynamic range (e.g. 2 ng/μl to 3700 ng/μl dsDNA). Total sample-to-sample measurement cycle time is less than 30 seconds — including sample prep and loading, spectral reading, and wiping of the optical surfaces.