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Ac 300 ft nmr spectrometer

Manufactured by Bruker
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The AC 300 FT-NMR spectrometer is a compact, high-performance nuclear magnetic resonance (NMR) spectrometer designed for routine analysis and research applications. It operates at a magnetic field strength of 7.05 Tesla, providing a proton frequency of 300 MHz. The instrument is equipped with a Fourier transform (FT) system for signal processing and data acquisition.

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Lab products found in correlation

Sodium bromate, by Merck Group (1 mentions) Magnesium chloride, by Merck Group (1 mentions) Milli q system, by Merck Group (1 mentions) Calcium chloride, by Merck Group (1 mentions) Iron 3 chloride, by Merck Group (1 mentions) Sodium bromide, by Merck Group (1 mentions) Zinc 2 chloride, by Merck Group (1 mentions)

3 protocols using ac 300 ft nmr spectrometer

1

Synthesis and Characterization of Liquid Crystals

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Decylaniline
(10C) was purchased
from Alfa Aesar. Sodium nitrite (NaNO2), sodium bromide
(NaBr), sodium bromate (NaBrO3), magnesium chloride (MgCl2), calcium chloride (CaCl2), iron(III) chloride
(FeCl3), and zinc(II) chloride (ZnCl2) were
purchased from Sigma-Aldrich. Potassium carbonate (K2CO3) was purchased from J.T. Baker. Potassium phosphate tribasic
(K3PO4) was purchased from Acros. Nematic liquid-crystal
4-cyano-4′-pentylbiphenyl (5CB) was purchased from Tokyo Chemical
Industry. 4-(Decyloxy)aniline (10CO) and decyl 4-aminobenzoate (10CBA)
were synthesized following the previous reports and identified through
the 1H NMR spectrum collected in the Supporting Information.56 (link),57 (link) Deionized water was
obtained from a Milli-Q system (Millipore). Real water samples, i.e.,
tap water and pond water, were collected in the campus of Tamkang
University. A Bruker AC-300 FT-NMR spectrometer was used to record
the NMR spectra.
Ho T.Y., Lan Y.H., Huang J.W., Chang J.J, & Chen C.H. (2020). Using Diazotization Reaction to Develop Portable Liquid-Crystal-Based Sensors for Nitrite Detection. ACS Omega, 5(20), 11809-11816.
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2

NMR Characterization of Copolymers

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1H-NMR spectroscopy was utilized for the verification of the chemical structure and mass composition (wt. %) of P(DMAEMA-co-OEGMA), as well as the quaternization degree of its Q_P(DMAEMA-co-OEGMA) derivative. 1H-NMR spectra were recorded using a Bruker AC 300 FT-NMR spectrometer (Billerica, MA, USA), and tetramethylsilane (TMS) was used as the reference. Samples for NMR measurements were prepared by dissolving 10 mg of the sample in 0.7 mL of deuterated chloroform (CDCl3) or deuterated water (D2O).
Theodoropoulou S., Vardaxi A., Kagkoura A., Tagmatarchis N, & Pispas S. (2024). Hybrid Nanoparticles from Random Polyelectrolytes and Carbon Dots. Materials, 17(10), 2462.
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3

Polymer Characterization by NMR Spectroscopy

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1H-NMR spectra were obtained using a Bruker AC 300 FT-NMR spectrometer at 30 °C. Chemical shifts are shown in ppm in reference to tetramethyl silane (TMS). Regarding sample preparation, 10 mg of copolymer were dissolved in 0.7 mL deuterated chloroform (CDCl3) or deuterated water (D2O) and then the solution was introduced to NMR tubes. The NMR spectrum analysis was performed using MestReNova software (VNMRJ 2.2C, Varian, Palo Alto, CA, USA) from MestRelabs.
Makri K, & Pispas S. (2024). Block and Statistical Copolymers of Methacrylate Monomers with Dimethylamino and Diisopropylamino Groups on the Side Chains: Synthesis, Chemical Modification and Self-Assembly in Aqueous Media. Polymers, 16(9), 1284.
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