DeNovix UV-Vis spectrophotometers accurately measure 0.5 – 1.0 uL samples utilizing patent-pending SmartPath® Technology. The opto-mechanical components and algorithms provide ultra-precise, real-time pathlength control to deliver performance unmatched by any microvolume spectrophotometer. The DS-11 continually compresses a sample during measurements rather than stretching. This method is especially beneficial for quantification of low surface tension fluids such as protein samples.
Best in Class 1uL Sample Lower Detection Limits!
DeNovix Spectrophotometers set the industry standard for the lower detection limits of 0.5 -1.0 uL UV-Vis sample analysis. Detect to 0.75 ng/uL dsDNA, 0.60 ng/uL RNA or 0.04 mg/mL BSA.
The DS-11 does not rely on fixed path length calibrations and therefore does not require regular calibration checks. There is no downtime or expense required for routine calibration like many other spectrophotometers. DeNovix offers a LC-NA verification standard for labs that may need to verify proper operation from time to time in accordance with their own quality standards.
DeNovix software includes a proprietary algorithm to test for an unbridged condition in the primary nucleic acid and protein quantification apps. This element of the SmartPath® algorithm not only detects the broken liquid column but compensates to ensure accurate results with no user action required. Learn more in TechNote 135.
SmartQC™ Contamination Alerts
In the presence of common contaminants, DeNovix software alerts the user and advises on potential issues. SmartQC also helps prevent contamination of measurement surfaces by monitoring the sample measurement and cleaning process and warning when the sample has not been removed in a timely manner.
Truly 1.0 uL Sample Volumes
A key feature of the DS-11 is that the longest path length used (0.5 mm path) is shorter than the 1.0 mm path used by other microvolume spectrophotometers. This enables the DS-11 to truly measure 1.0 uL samples, virtually eliminating the possibility of erroneous results due to sample column breakage.
Automatic Pathlength Adjustment
Many microvolume spectrophotometers may offer multiple pathlengths, but many require the user to guess which pathlength is needed prior to measuring the sample. The DS-11 uses real-time absorbance data to determine the best path length to use for each measurement.
Ultra High Absorbance
The DS-11 can measure samples with absorbance values as high as 750 absorbance units (at a 1 cm equivalent path length). This translates into 1125 mg/ml of BSA protein or 37500 ng/uL of dsDNA. This ultra high absorbance capability is achieved by using a remarkably small path length enabled by our SmartPath® Technology.
The reproducibility of measurements on the DS-11 is an important performance feature. For example, replicates of 500 ng/ul dsDNA samples typically result in CV’s of less than 1%.