Spectroscopy

Manufacturer: Beckman Model: DU-65 UV/Vis Spectrophotometer P/N: 120651 S/N: 4310288 Description: Be (more)ckman Coulter DU-65 uv-vis spectrophotometer. The Beckman DU-65 is an  instrument that combines optimized wavelength scanning with step-programmable capabilities and brings self contained versatility and productivity to the laboratory. The  basic operation can be mastered in seconds with time saving features like  storage of calibrations and auto-scaling of scans. With its Plug in Soft-Pacs, repeated  analyses can be produced at the touch of a button with a variety of functions such as linear and non-linear calibration curves, wavelength scans, kinetic measurements,  and gel-scans. These modules are available for various applications such as protein assays, DNA purity, tablet dissolution rates, and performance validation. No need of software or anything else - very comfortable wavelength scans with  transmission and absorbance with the printer on top! Specifications: Operating Principle: Double beam spectrometer for the UV/VIS region, with  microcomputer electronics, keyboard entry and vacuum fluorescence display.Monochromator: Holographic concave grating with 1053 lines/mm.Radiation: Prealigned Deuterium and Tungsten halogen lamps with automatic lamp  switching.Wavelength: 200 nm – 900 nm.Scanning Speed : 500 or 750 nm/ min selectableStray Radiation: Measured with a 2 sec response time< 0.03 %T at 220 nm< 0.02 %T at 340 nm, 370 nm.Wavelength Accuracy: +- 0.3 nm at Deuterium peak 656.1 nm.Reproducibility: +- 0.1 nm.Spectral Slit Width: 2 nm.Photometric Accuracy: +- 0.005 A at 1 A (measured with NBS 930 filters).Reproducibility: +- 0.002 A at 1A.Range: -3 to +3 A.Stability: < 0.0003 A/h (at 500 nm, 1 sec response time, after warmup).Baseline Stability: +- 0.001 A (200-900 nm at 0 A, 2 sec response time, 240  nm/min scan speed.Noise: < 0.0003 A (at 0 A, 500 nm, 2 sec response time) All Intelligence in the Instrument with direct keyboard input. . No need for  external PC, Software or anything else - very comfortable wavelength scans with  transmission and absorbance with the printer on top giving you direct print-outs  of any made scan. SEE PHOTO Items delivered: - Beckman DU-65 UV/Vis Spectrometer- Epson FX-850 (new ink ribbon installed)- Performance Validation Soft-Pac Module (596716)- Memory Pac Module (598286)- Quant II Soft-Pac Module (598288- Beckman Instruction Manuals German & English- Connection and Power Cords- Spare Lamp The spectrometer DU-65 is in good cosmetic condition and 100% functional tested.  Passes selftests and runs wavelength scans very smooth.

The offered instrument / system is fully functional tested and ready to use. FURTHER DETAILS TO FOLL (more)OW

Manufacturer: Perkin Elmer Model: Polarimeter 341 P/N: L300-0011 S/N: 9837 YoM: 2008 Description: Po (more)larimetry is an important technique for the investigation and analysis of optically active substances. Model 341 is a universal and general-purpose precision Polarimeter with Na and Hg source lamps and Glan-Taylor polarizer. Model 341 is a highly versatile instrument for research applications as well as for quality control work. The instrument can be extended into the UV range and is ready for polarimetric HPLC detection. The proven optical null principle, with automatic rotation of the analyzer, is the basis of PerkinElmer’s reputation for excellence in polarimetry. This principle, combined with state-of-the-art microprocessor electronics, results in an instrument which combines the highest possible accuracy and precision with simple operation. For routine measurements simply select the wavelength, insert the sample and read the result.  Common applications include: - Characterization of newly synthesized compounds- Quality control of pharmaceutical drugs- Precise quantitative analysis of sugars- Selective detection of optically active components by HPLC- Monitoring and control of enzymatic reactions Features: - UV-transmitting Glan/Taylor polarizer- Pure light from Hg and Na spectral lamps- Several interface ports- Simple user interaction- Enhanced sensitivity at low wavelengths- Highly accurate readings- Flexible use as a standalone system with printer, PC system or HPLC detector- Easy operation, quick to learn- Simple operation, database results and method management and customized reporting- Fully meets FDA requirements for regulated industries Specifications: - Model 341: Na 589 nm, Hg 578 nm, Hg 546 nm, Hg 436 nm and Hg 365 nm; four spare positions for additional optional filters.- Principle: Automatic precision Polarimeter with optical null principle by rotation of the analyzer; automatic gain control.- Radiation: Hg high-pressure lamp and Na spectral lamp. - Spectral lines: Selectable from instrument keypad.- Apertures: Selectable apertures for standard cells and microcells.- Detector: Photomultiplier 1P28A.- Polarizer and analyzer: UV/Vis-transmitting calcite Glan-Taylor prisms. - Rotatory range: ± 85°.- Balancing speed: 1.3°/s at 50 Hz.- Accuracy: ± 0.002° for rotations =1º; ± 0.2% for rotations >1°.- Reproducibility: Better than 0.002° (for zero and rotational reading).- Internal angular resolution: 1 x 10-4 º Integration times: 0.1s, 0.2s, 0.5s, 1s, 2s, 5s, 10s, 20s, 50s and 100s.- Autozero setting: Electronically from instrument keypad at any desired position in the rotatory range.- User interaction: Either menu-driven from integrated touch-keys (English, German, French, Spanish and Italian), or PC-controlled from POL WinLab or POL WinLab ES software.- Display: Stand-alone operation: vacuum fluorescence display, two lines with 20 characters each. PC-operation.- Format of results: Selectable from instrument keypad – angular rotation, specific rotation, molar rotation, international sugar scale, user-defined scale with factor and offset.- Printer output: Standard parallel printer port (Centronics port) supporting HP-PCL, Epson esc-p and generic ASCII format.- Communications: RS-232C serial interface, selectable communication parameters.- Data input: Input port for lntermec 9720 barcode reader and/or standard PC/AT keyboard.- Analogue output: Digital-to-analogue conversion of angular rotation for connecting integrators or chart recorders; recording ranges ± 50°, ± 5°, ± 0.5°, ± 0.05°; resolution 0.1% of range width; cyclic repeatability in all ranges; output voltage 0 to 10 mV, 100 mV, and 1 V. External “Ready”: Relay contact closure (normally open), signal floating; maximum load 110 V, 0.3 A AC or 30 V, 1A DC; activated by print signal, selectable delay and duration.- External autozero: External activation of autozero function; TTL signal, low active; or contact closure; duration 100 ms minimum.- Temperature sensor: PT-100 temperature sensor for sample cells (optional accessory); temperature range -23° C to +198° C.- Power requirements: 220-240V, 50Hz- Dimensions (WxHxD): 825 x 310 x 390 mm Items delivered: - Perkin Elmer Polarimeter 341 Condition: The Polarimeter is in excellent cosmetic as well as technical and operating condition. It is 100% functional tested, functions as intended and ready to be operated.

SECOMAM Anthelie UV/Visible Spectrophotometer Spectrophotometer Type: UV/Visible Mass: 8 kg Spectral (more) range: 190 - 900 nm For tank 10 x 10

Spectrophotometer BIOCHROM Visible Libra S21 Vis Type : Visible Wavelength Range : 325 - 1100nm W (more)avelength Accuracy (+/-) : 1nm Wavelength Reproducibility (+/-) : 0.5nm Lamp Source : Xenon (PTR) Beam : Split Beam Optical System : Reference Beam Compensation Bandwidth : <3nm Detector : Dual Solid State Silicon photodiode Photometric Range : -3.000 to 3.000A, -9999 to 9999 conc. units, 0.1 to 200%T Stray Light : <0.05%T at 220nm and 340nm Zero Stability : ± 0.002A/h at 0A after warm up Baseline Flatness n/a Power Requirement 90-265V, AC, 50/60Hz, 80VA Weight 13Kg (28.6lb) Dimensions (WxDxH) 51 x 37 x 23 cm (20 x 14.6 x 9.1 inches) Photometric Accuracy +/- 0.5% or +/-0.003A to 3A at 546nm Photometric Reproducibility 0.5% of absorbance value Spectral Scanning Yes (up to 900nm)

THERMO SPECTRONIC AQUAMATE 2000E UV-Visible Spectrophotometer Wavelength range: 190-1100 nm Spectral (more) bandwidth: 2 nm Wavelength Accuracy: +/-1.0nm Absorbance accuracy: +/-0.005 A at 1 A Photometric range: 0.1 to 3.0 A; absorbance Stability: <=0.002 A/h after heating Power supply: 100-240V 50/60Hz Dimensions: 455 x 395 x 215mm Weight: 10kg Hardware check performed on 27-12-22

The system includes: - 990 Graphite Furnace AAS & AA/WIN software - Sequential Auto-Sampler for 990  (more)Graphite Furnace AAS - Instruction manuals It was purchased in 2009, but never used in practice!

The Ultrospec™ 2100 pro UV-Visible spectrophotometer has an integral high resolution graphics displa (more)y and easy-to-use software making it ideal for use in the modern laboratory. Technical specifications Wavelength range 190–900 nm Monochromator 1200 lines/mm Aberration corrected concave grating Maximum scanning speed 3000 nm/minute Spectral bandwidth < 3 nm Wavelength accuracy ± 1 nm Wavelength reproducibility ± 0.5 nm Light source xenon lamp Detectors two silicon photodiodes Photometric range - 3.000 to 3.000 A, 0.01 to 9999 concentration units, 0.1 to 200 % T Photometric accuracy ± 0.5 % or ± 0.003 A to 3.000 A at 546 nm, whichever is the larger Photometric reproducibility within 0.5 % of absorbance value to 3.000 A at 546 nm Stability ± 0.001 A per hour at 340 nm at 0 A Stray light <0.05 % T at 220 nm using NaI and <0.05 % T at 340 nm using NaNO2 Digital output 9 pin serial and Centronics parallel Sample compartment size 210 x 140 x 80mm Dimensions 510 x 350 x 160mm Weight 13kg Power requirements 100–240 V AC ± 10 %, 50/60 Hz,

includes one laser: 785 nm, power range on a sample 5-50 mW

includes one laser with optical isolator: 785 nm, power range on a sample 0.5-5 mW

includes one laser: 785 nm, power range on a sample 15-150 mW

includes two lasers: 785 nm, power range on a sample 15-150 mW; 660 nm, power range on a sample 1-32 (more) mW

includes two lasers: 785 nm, power range on a sample 5-50 mW; 660 nm, power range on a sample 1-32 m (more)W

For sale: Refurbished Agilent 240FS series Atomic Absorption Flame system (please ask for official q (more)uote) Complete working system with burner, software, computer, cables. Also available: SPS3 sampler and other options if needed Other Atomic Absorption Systems like Varian 220FS, 220Z Furnance, 240Z Furnance, Perkin Elmer 400 series New and used parts for Agilent and Varian AAS systems Other brands like Perkin Elmer or Thermo   We are not a agent/reseller. All products on our website are in stock and can be delivered with installation by our own service engineers. All systems are delivered with warranty! We are not a agent/reseller. All products on our website are in stock and can be delivered with installation by our own service engineers. All systems are delivered with warranty! We can deliver maintenance and repair services by our own engineers   The 240FS AA is a fast sequential atomic absorption spectrometer that can double sample throughout and dramatically reduce running costs. Able to handle multi-element suites with ease, the Agilent 240FS AA system is ideal for environmental, food, and agriculture labs. The 240FS AA features automatic lamp selection, programmable gas box, and D2 background correction. A full range of AA accessories enable extra capabilities. Key Features Boost productivity and reduce running costs using Fast Sequential analysis Reduce your analysis time Reduce sample consumption Get accurate results Improve precision and accuracy Simplify your analysis Tune your flame AA performance Mark 7 atomization system

For sale: refurbished Varian 220 FS Atomic Absorption System (AAS)   (please ask for official quote) (more) Complete working system with burner, software, computer, cables. Also available: Sampler and other options if needed Other Atomic Absorption Systems like Agilent 240FS, Varian 220FS, 220Z Furnance, 240Z Furnance, Perkin Elmer 400 series New and used parts for Agilent and Varian AAS systems Other brands like Perkin Elmer or Thermo   We are not a agent/reseller. All products on our website are in stock and can be delivered with installation by our own service engineers. All systems are delivered with warranty!   We are not a agent/reseller. All products on our website are in stock and can be delivered with installation by our own service engineers. All systems are delivered with warranty! We can deliver maintenance and repair service for Varian and Agilent AAS systems by our own engineers

For sale: Refurbished Varian 240FS Atomic Absorption System – AAS (please ask for official quote) Co (more)mplete working system with burner, software, computer, cables. Also available: SPS3 sampler and other options if needed Other Atomic Absorption Systems like Agilent 240FS, Varian 220FS, 220Z Furnance, 240Z Furnance, Perkin Elmer 400 series New and used parts for Agilent and Varian AAS systems Other brands like Perkin Elmer or Thermo   We are not a agent/reseller. All products on our website are in stock and can be delivered with installation by our own service engineers. All systems are delivered with warranty! We are not a agent/reseller. All products on our website are in stock and can be delivered with installation by our own service engineers. All systems are delivered with warranty! Specifications: Vairan AA Intro