Dual-mode UV-Vis Spectrophotometer with Micro-Volume AND Cuvette Capability for Nucleic Acid and Protein Quantitation. The Thermo Scientific NanoDrop 2000c is the only micro-volume spectrophotometer that integrates a patented sample retention technology for samples as small as 0.5 µL and a cuvette capability. All the features of the NanoDrop 2000" Spectrophotometer plus cuvette mode. Pre-configured methods for all common Nucleic Acid and Protein Concentration and Purity measurements, in both modes. Custom Methods capability, in both modes Cell cultures (OD600) Kinetic studies (time and 37°C temp) with stirring, in cuvette mode. Extended concentration range (lower limit 0.4 ng/µL dsDNA) in cuvette mode.