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Analytical instruments

Explore High-Precision Analytical Instruments at QuestPair. Discover our wide range of analytical instruments, designed to deliver accurate and reliable measurements for your laboratory needs. From spectroscopy to chromatography, our instruments are essential for achieving precise analysis in research, quality control, and beyond.

Perkin Elmer 343 Polarimeter-cover
Perkin Elmer 343 Polarimeter

Polarimetry is an important technique for the investigation and analysis of optically active substan (more)ces. 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 Principle: Automatic precision Polarimeter with optical null principle by rotation of the analyzer; automatic gain control. Radiation: Na spectral lamp Spectral lines: Selectable from instrument keypad (Na 589 nm) Apertures: Selectable apertures for standard cells and microcells. Detector: Photomultiplier 1P28A. Polarizer and analyzer: Vis-transmitting polarizers Rotatory range: ± 85° Balancing speed: 1.3°/s at 50 Hz; 1.5°/s at 60 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. Format of results: Selectable from instrument keypad – angular rotation, specific rotation, molar rotation, international sugar scale, user-defined scale with factor and offset. Dimensions (WxHxD): 825 x 310 x 390 mm Weight: 40 kg

€5,999.00 ex VAT
Netherlands
polarimeters, polarimeter
Perkin Elmer Model 343 S Polarimeter-cover
Perkin Elmer Model 343 S Polarimeter

Polarimetry is an important technique for the investigation and analysis of optically active substan (more)ces. 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 Principle: Automatic precision Polarimeter with optical null principle by rotation of the analyzer; automatic gain control. Radiation: Na spectral lamp Spectral lines: Selectable from instrument keypad (Na 589 nm) Apertures: Selectable apertures for standard cells and microcells. Detector: Photomultiplier 1P28A. Polarizer and analyzer: Vis-transmitting polarizers Rotatory range: ± 85° Balancing speed: 1.3°/s at 50 Hz; 1.5°/s at 60 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. Format of results: Selectable from instrument keypad – angular rotation, specific rotation, molar rotation, international sugar scale, user-defined scale with factor and offset. Dimensions (WxHxD): 825 x 310 x 390 mm Weight: 40 kg

€5,999.00 ex VAT
Netherlands
polarimeter, polarimeters
WATERS ALLIANCE 2695 + 2487 DAD HPLC-cover
WATERS ALLIANCE 2695 + 2487 DAD HPLC

For sale: Refurbished WATERS ALLIANCE 2695 HPLC Pricing: from EUR 9500,- till EUR 12.000,-  (please  (more)ask for official quote) Refurbished including:  2695 module  2487 Dual Absorbance Detector DAD  Software and computer Cables and connectors Also available: Other type of Detectors available like PDA Other brands of HPLC like Agilent and Thermo More refurbished parts for Waters HPLC systems All our products are fully tested and 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! Waters 2695 HPLC System Specifications Number of solvents One to four Solvent conditioning Vacuum degas, two (2) operating modes, four (4) chambers, ≈<500 uL internal volume per chamber> <500uL interval volume per chamber Programmable flow rate range 0.000 and 0.010 to 10.000 mL/min in 0.001-mL/min. increments Typical operating flow rate range 0.050 to 5.000 mL/min in 0.001-mL/min increments Compressibility compensation Automatic and continuous Effective system delay volume <650 µL, independent of backpressure @ 1 mL/min Plunger seal wash Integra, active, programmable Gradient profiles Eleven (11) gradient curves [including linear, step (2 curves), concave (4 curves), and convex (4 curves)] Dry prime/wet prime Automatic, front panel control Flow ramping Time (0.01 to 30.00 min in 0.01-min increments) to reach maximum flow rate Maximum operating pressure 5000 psi (345 bar) (0.010 to 3.000 mL/min) Programmable upper and lower limits. Pressure fall-off at >3.000 mL/min. Pressure ripple ≤2.5% (1 mL/min, degassed methanol, at 1700 psi backpressure) Composition accuracy ±0.5% absolute, independent of backpressure (Proportioning Valve Pair Test [degassed methanol:methanol/propylparaben, 2 mL/min, 254 nm]) Composition precision ≤0.15% RSD or ≤0.02 min SD, whichever is greater, based on retention time. (Degassed methanol:water 60:40 Dial-a-Mix, 1 mL/min, six replicates, phenone mix, 254 nm.) Flow precision ≤0.075% RSD or ≤0.02 min SD, based on retention time (N = 6) or volumetric measures (0.200 to 5.000 mL/min), isocratic premix Flow accuracy ±1% or 10 µL/min, whichever is greater, (0.200 to 5.000 mL/ min), degassed methanol, at 600 psi backpressure

Netherlands
hplc systems

QuestPair Analytical Instruments: Your Partner in Precision

In today's fast-paced scientific landscape, the accuracy of your data is non-negotiable. QuestPair’s analytical instruments are designed to meet the exacting standards of modern laboratories, providing the reliability and precision needed to drive your research forward. Whether your focus is on chemical analysis, materials testing, or environmental monitoring, our instruments are engineered to deliver clear, consistent results every time.

Our Analytical Instruments: Key Features

Each instrument in our collection is equipped with features that ensure top-tier performance:

  1. Precision Engineering: Every instrument is fine-tuned to deliver measurements with the highest degree of accuracy, essential for complex analyses.
  2. Robust Design: Built to last, our instruments can handle the demands of intensive laboratory use, providing you with reliable data over the long term.
  3. Versatility: From spectroscopy to chromatography, our range covers multiple analytical techniques, making them adaptable to various scientific disciplines.
  4. Ease of Use: User-centric interfaces and straightforward operation make our instruments accessible, even for complex procedures, enhancing lab efficiency.

Applications Across Multiple Disciplines

QuestPair’s analytical instruments are indispensable tools across various fields:

  • Chemical Analysis: Achieve accurate quantitative and qualitative analysis with instruments designed for high sensitivity and specificity.
  • Materials Testing: Our instruments support the testing and characterization of materials, ensuring they meet required standards and specifications.
  • Environmental Monitoring: Reliable measurements for environmental assessments, including air, water, and soil analysis, are made possible with our advanced tools.

Why Choose QuestPair?

QuestPair is committed to providing you with analytical instruments that not only meet but exceed industry standards. Our products are backed by expert support, ensuring you have access to the guidance and information you need to make the most of your investment.

Consult with Our Experts for personalized advice on selecting the right analytical instruments for your laboratory. Contact us today to enhance your lab’s analytical capabilities with the precision and reliability that QuestPair is known for.

Disclaimer: QuestPair assumes no responsibility or liability for any errors or omissions in the content of this site. The information contained in this site is provided and presented on an “as is“ basis with no guarantees of completeness, accuracy, usefulness or timeliness.

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