Optical rotations were recorded on a LAXCO POL-200 series polarimeter using a 1.0 mL cell. IR spectra were recorded on a Perkin Elmer Spectrum One FT-IR spectrometer. 1D and 2D NMR spectra were recorded with a Bruker Avance 400 MHz instrument at 400 MHz for 1H NMR and 100 MHz for 13C NMR. Chemical shift values (δ) are recorded in parts per million (ppm), and coupling constants (J) are in Hz. All of the chemical shifts were recorded with respect to the deuterated solvent resonance (CDCl3: δH 7.24 for the proton resonance and δC 77.0 for carbon; MeOH-d4: δH 3.31 for the proton resonance and δC 49.1 for carbon; C6D6: δH 7.16 for the proton resonance and δC 128.4 for carbon). All COSY experiments were 2D-COSY. Both low and high-resolution mass spectra were recorded on an Agilent 6520 Q-TOF LC mass spectrometer. Monoisotopic accurate masses were calculated with ISIC-EPFL Mass Spectrometry Platform.
6520 q tof lc mass spectrometer
Manufactured by Agilent Technologies
Sourced in United States
The 6520 Q-TOF LC mass spectrometer is a high-resolution, accurate-mass quadrupole time-of-flight (Q-TOF) liquid chromatography mass spectrometry (LC-MS) system. It is designed to provide precise, high-quality data for a wide range of analytical applications.
Automatically generated - may contain errors
Lab products found in correlation
Avance 400 mhz, by Bruker (1 mentions)
Spectrum one ftir spectrometer, by PerkinElmer (1 mentions)
Lcq fleet mass spectrometer, by Thermo Fisher Scientific (1 mentions)
Silica gel 60, by Merck Group (1 mentions)
400 mhz spectrometer, by Bruker (1 mentions)
Silica gel 60 f254 plate, by Merck Group (1 mentions)
Microplate reader, by Dynex (1 mentions)
2 protocols using 6520 q tof lc mass spectrometer
1
Optical, IR, and NMR Spectroscopic Analysis
2
Synthesis and Characterization of (R)-Solketal
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(R)-(-)-2,3-O-isopropylideneglycerol ((R)-solketal) with purity ≥98% and all other chemicals were of reagent grade (Sigma-Aldrich). All solvents were dried and distilled before use. Thin-layer chromatography (TLC) was performed on Silica gel 60 F 254 plates (Merck) and visualized with UV light or 1% (p/v) ceric sulfate in a 7% sulfuric acid solution. Silica gel 60 (0.040-0.063 mm, Merck) was used for column chromatography (CC). 1D and 2D NMR spectra were recorded with a Bruker 400 MHz spectrometer using CDCl 3 (δ: 7.26 ppm, 77.0 ppm). ESI-MS spectra were measured on an LCQ Fleet mass spectrometer (Thermo Fisher Scientific, Waltham, USA). HRESI-MS was carried out on a 6520 Q-TOF LC mass spectrometer (Agilent Technologies Inc., Santa Clara, USA). Optical rotations were determined on an ADP440 polarimeter (Bellingham + Stanley, Suwanee, USA). Absorbance was measured using a microplate reader (Dynex technology, Chantilly, USA)
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