FX Fluorometer Module For DS-11 Spectrophotometer


The FX Fluorometer Module instantly adds the power of fluorescence detection to any DeNovix DS-11DS-11+ or DS-C Spectrophotometer.

Features :

  • Best-in-Class dynamic range & sensitivity
  • Flexibility to choose any existing fluorescent assay
  • UV, blue, green and red fluorescence
  • Android™ OS with intuitive EasyApps®

More details

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The FX Module uses the same fluorescence detection module as the DS-11 FX, DS-11 FX+ and QFX. Simply plug in this USB powered accessory to a DS-C, DS-11 or DS-11+ device and DeNovix fluorometric EasyApps® are immediately enabled. The easy-to-use apps are preconfigured for use with a wide choice of commercially available assays including those designed for Qubit® and Quantus platforms.

The QFX Fluorometer System is more sensitive and reproducible than any other instrument in its class. The QFX is a powerful solution for all fluorometric applications where enhanced specificity or sensitivity are needed. Quantify nucleic acids and proteins using four fluorescent channels with a choice of common assays built into measurement apps or easily create custom apps for the ultimate in fluorometer flexibility. The QFX outperforms Qubit® and other tube fluorometers giving superior data quality, more powerful software and full network integration for seamless data handling.

Combined with the DeNovix Fluorescence Assays, the QFX offers quantification of DNA between 0.5 pg/µl and 4,000 ng/µl. The ideal solution for quantification of degraded or low concentration samples, even in the presence of common contaminants.

Compare the QFX and the Qubit® Fluorometer.

Easy to learn. Fast to use.

The QFX features the most powerful and intuitive software of its type. Designed by life scientists, pre-installed EasyApps® and a breakthrough Android™ touchscreen interface delivers error-free operation and sample to data in under 2 seconds. Every instrument is ready to measure right out of the box – no PC set-up or software installation.

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Assay independance

Choose the assay you wish to work with, not the one dictated to you by a fluorometer manufacturer. DeNovix EasyApps® are pre-configured with a large selection of commercially available quantification assays. Choose easy two-point standard curve DeNovix Fluorescence Assays or Qubit® and Quantus™ assays for dsDNA, RNA or protein quantification.

Multiple channels with the researcher in mind

DeNovix Fluorometers include four emission and excitation channels to provide scientists the flexibility to use the fluorophore and detection ranges of their choice. Choose from UV (375 nm), Blue (470 nm), Green (525 nm) or Red (635 nm) excitation sources.

Assays included in DeNovix EasyApps®

Choose from one of these pre-programmed assays, or create your own !

  • Fluoro dsDNA : DeNovix dsDNA Broad Range, DeNovix dsDNA High Sensitivity, DeNovix dsDNA Ultra High Sensitivity, Quant-it™ PicoGreen® , Quant-it™  dsDNA HS, Quant-it™  dsDNA BR, Qubit®dsDNA BR, Qubit®dsDNA HS, Quantifluor® dsDNA and Quantifluor® One dsDNA
  • Fluoro RNA : Quant-it™ Ribogreen, Quant-it™ RNA BR, Quant-it™ RNA HS, Qubit® RNA BR, Qubit® RNA HS, Quantifluor® RNA, Quant-it™ microRNA, Qubit® MicroRNA
  • Fluoro ssDNA : Quant-it™ OliGreen, Qubit® ssDNA, Quantifluor® ssDNA
  • Fluoro Protein : Quant-it™ Protein, Qubit® Protein


Unmatched connectivity

Built-in Wi-Fi, Ethernet and USB allows easy export of data you want in the format you need. Email a .csv or color .jpg of your results, save data to LIMS or network drives, print results or graphs to network and label printers and more !


Spectrophotometer microvolume mode (DS-11, DS-11+, DS-11 FX, DS-11 FX+)

Minimum sample size0.5 µl
Pathlength0.5 mm (auto ranging to 0.02 mm)
Light sourcePulsed Xenon flash lamp
Detector type2,048 element CCD
Wavelength range190-840 nm
Wavelength accuracy0.5 nm
Spectral resolution1.5 nm (FWHM at Hg 253.7 nm)
Absorbance precision0.015 AU (1 cm), or 1%, whichever is greater
Absorbance accuracy1.5% at 0.75 AU at 260 nm
Absorbance range0.015 – 750 (1 cm equivalent)
Detection limit0.04 mg/ml BSA; 0.75 ng/µl dsDNA
Maximum concentration1,125 mg/ml BSA; 37,500 ng/µl dsDNA
Lower sample surface material of construction303 stainless steel and sapphire window
Upper sample surface material of construction303 stainless steel and quartz fiber

Spectrophotometer cuvette mode (DS-C, DS-11+, DS-11 FX+)

Beam height8.5 mm
Heating37-45°C +/- 0.5 °C
Pathlength10, 5, 2, 1, 0.5, 0.2, 0.125 mm
Absorbance range0.0008-1.5 AU (1 cm)
Detection limit0.002 mg/ml BSA; 0.04 ng/µl dsDNA (1 cm)
Maximum concentration75 ng/µl dsDNA (1 cm)
Light sourcePulsed Xenon flash lamp
Detector type2048 element CCD
Wavelength range190-840 nm
Wavelength accuracy0.5 mm
Spectral resolution1.5 nm (FWHM at Hg 253.7 nm)
Absorbance precision0.015 AU (1 cm), or 1%, whichever is greater
Absorbance accuracy1.5% at 0.75 AU at 260 nm

Fluorometer mode (DS-11 FX, DS-11 FX+ and FX module)

Light sourcesUV LED (~375 nm), Blue LED (~470 nm),
Green LED (~525 nm), Red LED (~635 nm) 
Excitation filtersUV: 361-389 nm, Blue: 442-497 nm,
Green: 490-558 nm, Red: 613-662 nm
Emission filters435-485 nm, 514-567 nm, 565-650 nm, 665-740 nm
DetectorsPhotodiode, detection range 300-1,000 nm
Tube type0.5 ml Real-Time thin-wall PCR tube (polypropylene)

Onboard controller (no PC required)

Operating systemCustom Android™ OS
CPUTI OMAP 1.5 GHz Dual Core ARM Processor
Display1,280 x 800 high definition color display
User inputTouch screen with swipe and pinch motion; glove compatible
Internal storage32 GB flash drive
Connectivity3 USB ports for printer, barcode reader and USB drive
NetworkingEthernet and Wi-Fi


ColorsArctic White, Brazilian Blue, Fire Red, Tungsten Silver
Measurement time for spectrophotometry2 seconds
Measurement time for fluorescence2 seconds
Footprint20 cm x 33 cm 
Weight2 kg 
Operating voltage12 VDC
Operating power consumption10W; max 30W
ApprovalsCE, UL/CSA, FCC and Japan CAB
Manufacture locationUSA



QFX key features

  •   Intuitive app Icons for quick recognition
  •   Familiar Android navigation touch gestures and functional icons
  •   Fluid pinch, zoom glove compatible touch interface
  •   AutoRun option for streamlined operation
  •   Optimized screens for reports and graph overlays
  •   Password protected accounts for project and data management
  •   Absorbance represented as 1 cm equivalent for all apps- no confusion between applications
  •   Sample name field is key-focused for easy barcode reader use
  •   All data is automatically archived and easily exported in tab-delimited format
  • Preconfigured commonly used Qubit®, Quant-it™ and Quantifluor® assays
  • Easy configuration of additional assays
  • Single or multi-replicate standard curve options
  • User control of  line fit, trend line analysis, subtraction of blank
  • User control of assay and reported sample concentration units
  • Save and re-use curves and lists of standard concentrations

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