BioRad ID-Centrifuge 12 S II

Refurbished Hettich MIKRO 220 R, refrigerated microcentrifuge. Great condition - great price. 6 mont (more)hs warranty. Technical data: - Coolable microlitre centrifuge - Max. 18,000 rpm/31,514 x g (depending on rotor) - External dimensions (WxDxHxD): 330 x 650 x 313 mm (height with lid closed) Features: - Membrane keyboard for fast data input, rotary knob, metal housing and cover, stainless steel rotor chamber, viewing window in cover - Memory function for 10 programs - Nine preselectable acceleration or deceleration phases or unbraked deceleration - MIKRO 220 R: Stepless adjustment from -20 to +40 °C, Fast Cool function - Security features: Lid locking and fixing while rotor is running, emergency release for lid, overheating protection for motor, chamber overheating protection, unbalance switch-off, automatic rotor recognition, lid holding device

Maximum speed: 30000 rpm Maximum RCF: 65395 xg Maximum capacity: 6 x 250 ml Speed range: 200 – 30000 (more) rpm Temperature range: -20°C to 40°C Running time: 59 min 50 s / 10 s increments, 99 h 59 min / 1 min increments Dimensions (WxHxD): 715 x 420 x 510 mm Weight: 91 kg Equipped with: 1x Hermle 221.21 fixed angle rotor 6x Hermle 12/001 1x 50 ml falcon tube adapter 6x Hermle 13/001 4x 15 ml falcon tube adapter

Angular rotor for centrifuge Nr.12156 SIGMA 16500 rpm For 8x 50 mL With lid

Heating Rate: ≤ 20 min. 30° to 130°C No. of Blocks: Two block with 28 times 1.5 mL capacity Temperat (more)ure Accuracy: ≤ ± 0.5°C Temperature Uniformity: ≤ ± 1°C Timer: 0 to 99:59 min or continuous Dimensions (LxWxH): 318 x 200 x 100 mm Weight: 3.3 kg

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