Spektrophotometer Thermo Scientific NanoDrop 2000

Thermo Scientific NanoDrop 2000 UV-Vis microvolume spectrophotometer. The NanoDrop 2000 measures nucleic acid and protein samples using a sample-retention pedestal that requires only 1-2 uL of sample, with no cuvettes or dilutions needed for most measurements. It is used routinely in molecular biology and biopharmaceutical labs for quantifying DNA, RNA, purified protein (A280), labeled dyes and microbial cell density, with a xenon flash lamp source covering the UV-visible range and variable path length technology for a wide concentration range. The instrument nameplate in photo 3 reads Thermo Scientific NanoDrop 2000 UV-Vis Spectrophotometer, Configuration: PC, Serial No. Q341, assembled in USA, and carries the CE mark and MET listing E112352. The PC configuration means the unit is operated from a Windows computer running NanoDrop 2000 software over a USB connection; no computer, monitor or software is shown in the photos of this unit. The unit runs from an external 12 VDC power supply (approximately 30 W). Photos show the instrument sitting loose on a laboratory bench with the sample arm and measurement pedestal intact (photo 2, pedestal and upper optical surface visible) and cords nearby. A small mark/label residue is visible on the right side of the housing in photo 1. No operating or condition testing is documented for this unit, and no accessories beyond what is visible in the photos are included. The instrument is a benchtop, hand-carryable unit measuring approximately 8 x 5 x 7 inches.