Wb 400 spectrometer

Manufactured by Bruker

Sourced in Germany

The WB-400 spectrometer is a laboratory equipment manufactured by Bruker. It is a nuclear magnetic resonance (NMR) spectrometer designed for scientific research and analysis. The core function of the WB-400 is to perform high-resolution NMR measurements and spectroscopy.

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Lab products found in correlation

16f pc ftir spectrometer, by PerkinElmer (3 mentions) Miniflex 2 desktop x ray diffractometer, by Rigaku (3 mentions) Xseries 2 icp ms, by Thermo Fisher Scientific (2 mentions) Elemental analyzer series 2 model 2400, by PerkinElmer (2 mentions) Dsc 204 f1 phoenix, by Netzsch (1 mentions) Tg 209 f1 libra, by Netzsch (1 mentions) N dimethylformamide, by Merck Group (1 mentions)

Spelling variants of this product

400 spectrometer (95 citations) Bruker spectrometers (71 citations) AVANCE III 400 WB spectrometer (19 citations) Avance III 400 WB NMR spectrometer (6 citations) Avance 400 WB spectrometer (4 citations) AVANCE 400 WB NMR spectrometer (2 citations)

5 protocols using wb 400 spectrometer

Synthesis and Characterization of Crosslinked Polymers

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EXAMPLE 1

Materials and Methods:

Phenol (Ph), ethylene glycol (EG), diethylene glycol (DEG), triethylene glycol (TEG) and Tetraethylene glycol (TETA) and paraformaldehyde were purchased from Fluka Chemie AG (Buchs, Switzerland). heptane was supplied by Sigma-Aldrich, Germany. All other solvents and reagents employed were of analytical grade. The infrared spectra were recorded were analysed by Perkin Elmer 16F PC FTIR spectrometer in the 4000-500 cm-1 wavelength region. The solid NMR spectra were recorded by Bruker WB-400 spectrometer with a spinning rate of 10 KHz. The cross-linked polymers were analysed for powder xray diffraction by Rigaku Miniflex II Desktop X-ray Diffractometer with 30 and stop angle of 700 sampling step size of 0.03, scan speed 3.00, 30 KV and 15 mA. The concentrations of mercury samples before and after analysis were analysed Inductively Coupled Plasma Mass Spectroscopy model ICP-MS XSeries-II (Thermo Scientific). Thermal properties of the synthesized cross-linked polymers were performed on NETZSCH Thermal Analyzer, model DSC 204 F1 Phoenix and TG 209 F1 Libra, respectively.

US10844156B2. Cross-linked polymeric resin and methods of use (2020-11-24). King Fahd University of Petroleum and Minerals [SA]. Inventors: Othman Charles Sadeq Al Hamouz [SA].

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Characterization of Melamine-based Composites

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Example 1

Materials and Methods

Melamine, diaminoalkanes, and paraformaldehyde were purchased from Fluka Chemie AG (Buchs, Switzerland). N, N-dimethylformamide (DMF) was supplied by Sigma Aldrich (Germany). All other solvents and reagents employed were of analytical grade. FT-IR spectra of the composites were analyzed on a Perkin Elmer 16F PC FT-IR spectrometer within 4000-500 cm⁻¹wavenumber region. Solid-state ¹³C-NMR spectra were taken using a Bruker WB-400 spectrometer with a spinning rate of 10 KHz. Elemental analysis was done on a Perkin-Elmer Elemental Analyzer series II Model 2400. Powder X-ray diffraction pattern of crystal nature was recorded using a Rigaku Miniflex II Desktop X-ray Diffractometer with 3° and stop angle of 70°, sampling step size of 0.03, scan speed of 3.00, 30 KV and 15 mA. Inductively Coupled Plasma Mass Spectroscopy (ICP-M S) analyses of wastewater before and after treatment with composites were done using an ICP-M S X Series-II (Thermo Scientific).

US11772990B2. Removal of cadmium ions using a terpolymer/carbon nanotube composite (2023-10-03). King Fahd University of Petroleum and Minerals [SA]. Inventors: Othman Charles Sadeq Al Hamouz [SA], Isaiah Olabisi Adelabu [SA], Tawfik Abdo Saleh Awadh [SA].

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Solid-State 13C NMR Characterization

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Solid-state 13 C cross polarization magic-angle spinning (CPMAS) nuclear magnetic resonance (NMR) spectra were obtained on a Bruker WB 400 spectrometer, using a 4-mm DVT probehead. Samples were packed in 4 mm diameter cylindrical zirconia rotors and spectra were referenced to adamantane. Operation conditions included a contact time of 1 ms, a recycle delay of 3 s, a spin rate of 9 kHz and 4000 scans.

Campano C., Rivero-Buceta V., Fabra M.J, & Prieto M.A. (2022). Gaining control of bacterial cellulose colonization by polyhydroxyalkanoate-producing microorganisms to develop bioplasticized ultrathin films. International journal of biological macromolecules, 223(Pt A).

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Synthesis and Characterization of Polyamine Compounds

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Example 1

Materials and Methods

Pyrrole (PY), 1,2-Diaminoethane (ED), 1,4-Diaminobutane (BD), 1,8-Diamineoctane (OD), 1,10-Diaminodecane (DD), paraformaldehyde, heptane, carbon disulfide (CS₂), potassium hydroxide, acetone, dimethylformamide (DMF) were used as received without purification. Solvents and other chemicals used were of analytical grade. Elemental analysis was done using a Perkin-Elmer Elemental Analyzer series II Model 2400. FT-IR spectra recorded on a Perkin Elmer 16F PC FTIR spectrometer. Solid-state ¹³C-NMR spectra were taken using Bruker WB-400 spectrometer with a spinning rate of 10 KHz Thermogravimetric analysis (TGA) was performed using a thermal analyzer (STA 429) by Netzsch (Germany). Powder X-ray Diffraction pattern for crystal nature was recorded using Rigaku Miniflex II Desktop X-ray Diffractometer from Theta=5-50. Concentration of metal ions before and after adsorption where measured by inductively coupled plasma (ICP-MS).

US10494472B2. Crosslinked polydithiocarbamate, synthesis thereof, and use for removing heavy metals (2019-12-03). King Fahd University of Petroleum and Minerals [SA]. Inventors: Othman Charles Sadeq Al Hamouz [SA], Mohammed Estatie [SA], Tawfik Abdo Saleh Awadh [SA].

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Cross-Linked Polymer Characterization by NMR

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Example 4

Characterization of Cross-Linked Polymer: NMR Spectroscopy

Solid state ¹³C NMR spectra were obtained using a Bruker WB-400 spectrometer with a spinning rate of 10 kHz and shown in FIG. 3. The assignment of peaks and spectra confirmed the proposed structures of each polymer. The peak at˜80 ppm (d-peak of MPF) revealed the formation of a triazine ring in MPF. The peak at ˜130 ppm in the spectrum of BSPF is attributed to the aromatic bisphenol-S [Rego R, Adriaensens PJ, Carleer RA, Gelan JM. Fully quantitative carbon-13 NMR characterization of resol phenol-formaldehyde prepolymer resins. Polymer 2004; 45: 33-8; Chuang IS, Maciel G E, Myers G E. Carbon-13 NMR study of curing in furfuryl alcohol resins. Macromolecules 1984; 17: 1087-90; and Chutayothin P, Ishida H. Polymerization of p-cresol, formaldehyde, and piperazine and structure of monofunctional benzoxazine-derived oligomers. Polymer 2011; 52(18): 3897-904, each incorporated herein by reference in their entirety]. Additionally, tertiary aromatic α-peak and secondary-cyclic and acyclic e- and f-peaks exist in both polymer types.

US11530289B2. Crosslinked polymers and a method for heavy metal ion removal (2022-12-20). KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS [SA]. Inventors: Othman Charles Sadeq Al Hamouz [SA], Mohammed Estatie [SA], Tawfik Abdo Saleh Awadh [SA], Mohamed A. Morsy [SA].

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