Alpha p ftir spectrometer

Manufactured by Bruker

Sourced in Germany, United States

The Alpha-P FTIR spectrometer is a compact and robust Fourier Transform Infrared (FTIR) spectrometer designed for routine analysis. It features a Michelson interferometer and a sensitive mid-infrared detector to measure the absorption or transmission of infrared radiation by a sample. The Alpha-P provides high-quality infrared spectra for the identification and quantification of various organic and inorganic compounds.

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Spelling variants of this product

Alpha FTIR spectrometer (243 citations) FTIR spectrometer (163 citations) Alpha spectrometer (95 citations) Bruker spectrometers (71 citations) Alpha FTIR (43 citations) Alpha-P (42 citations) Alpha-P spectrometer (16 citations) Alpha-P ATR FTIR spectrometer (6 citations) Alpha-P FTIR (5 citations) Alpha FTIR spectrometer Alpha-P (2 citations)

25 protocols using alpha p ftir spectrometer

Synthesis and Characterization of Compounds

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The required chemical compounds were obtained from Aldrich and Merck AG. ¹H and ¹³C NMR spectra, which used to elucidate the structures of the synthesized compounds, were obtained in DMSO-d₆ with TMS as internal standard by Bruker Ultrashield Plus Biospin spectrometer at 400 MHz and 100 MHz, respectively. Alpha-P Bruker FT-IR spectrometer were used IR spectra. Stuart SMP30 melting point apparatus were used in order to determine the melting points.

Beytur M., Turhan Irak Z., Manap S, & Yüksek H. (2019). Synthesis, characterization and theoretical determination of corrosion inhibitor activities of some new 4,5-dihydro-1H-1,2,4-Triazol-5-one derivatives. Heliyon, 5(6), e01809.

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Fourier Transform Infrared Spectroscopy Protocol

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The MIR spectra of the reference material and commercial products and were recorded in the wavenumber range 4000–550 cm⁻¹ on an Alpha-P Bruker FT-IR spectrometer mounted with an ATR diamond crystal (Bruker OPTIK GmbH, Ettlingen, Germany). The operating software used was OPUS^® 6.5 (Bruker OPTIK GmbH). Spectra were obtained by placing a small aliquot of the powder directly onto the surface of the ATR diamond crystal. A plunger was used to press down the powder so that it was in direct contact with the crystal. A total of 32 scans were accumulated and averaged to produce an average spectrum for each sample. All measurements were performed in the absorbance mode and a spectral resolution of 4 cm⁻¹ was used [15 (link)]. Chemometric analysis of the data was performed using SIMCA^®-P+ 14.0 (Umetrics AB, Malmo, Sweden).

Sandasi M., Vermaak I., Chen W, & Viljoen A. (2016). The Application of Vibrational Spectroscopy Techniques in the Qualitative Assessment of Material Traded as Ginseng. Molecules, 21(4), 472.

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FT-IR Characterization of NR, PHBV, and Blends

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Samples (NR, PHBV, and NR/PHBV blends) were characterized by a Bruker Alpha-P FT-IR spectrometer. The samples were scanned in attenuated total reflection (ATR) mode ranging from 4000 to 400 cm⁻¹ with a resolution of 4 cm⁻¹ and 48 scans.

Frank C., Emmerstorfer-Augustin A., Rath T., Trimmel G., Nachtnebel M, & Stelzer F. (2023). Bio-Polyester/Rubber Compounds: Fabrication, Characterization, and Biodegradation. Polymers, 15(12), 2593.

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Infrared Spectroscopy of Samples

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The infrared spectra were recorded on a Bruker Alpha-P FTIR spectrometer (Ettlingen, Germany) using attenuated total reflection (ATR) in the wavelength range of 3500 to 500 cm⁻¹, with a nominal resolution of 4 cm⁻¹ and accumulation of 32 scans.

Stofella N.C., Veiga A., Oliveira L.J., Montin E.F., Andreazza I.F., Carvalho Filho M.A., Bernardi L.S., Oliveira P.R, & Murakami F.S. (2019). Solid-State Characterization of Different Crystalline Forms of Sitagliptin. Materials, 12(15), 2351.

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Synthesis and Characterization of 2-Phenylbenzothiazole

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Synthesis of 2-phenylbenzothiazole was performed as described elsewhere [31 ]. Briefly, 2-mercaptoaniline (250 mg, 2 mmol), benzaldehyde (212 mg, 2 mmol) and excess acetic acid were heated for 4 hours at reflux temperature. After cooling it to room temperature, the reaction mixture was added into an ice water mixture. The solid precipitated out was collected by suction filtration. The crude solid was crystallized from ethanol/water to give 345 mg of 2p-bt in 82% yield as colorless solid.
Characterization of 2p-bt product was performed by 500 MHz ¹H and 125 MHz ¹³C NMR experiments performed on a JOEL Eclipse Plus 500 NMR spectrometer. Chemical shifts were recorded in reference to residual solvent peaks (CDCl₃ = 7.26 ppm). FT-IR spectra were recorded on a Bruker Alpha-P FT-IR Spectrometer by attenuated total reflectance on a diamond sample plate. ¹H NMR (500 MHz, CDCl₃) δ 8.13 – 8.09 (m, 3H), 7.89 (ddd, J = 8.0, 1.2, 0.6 Hz, 1H), 7.53 – 7.47 (m, 4H), 7.40 – 7.36 ppm (m, 1H); ¹³C NMR (126 MHz, CDCl₃) δ 168.1, 154.2, 135.1, 133.7, 131.0, 129.1, 127.6, 126.4, 125.3, 123.3, 121.7; IR (Neat): 3064, 3018, 1477, 1432, 1312, 1224, 962, 757, 729. Melting point (113–114 °C) was obtained in capillary tubes on a Mel-Temp II apparatus, and the thermometer was uncorrected. These values are in agreement with those reported in the literature [32 (link)].

Morrow W.P., Sardar S., Thapa P., Hossain M.S., Foss FW J.r, & Pierce B.S. (2017). Thiol dioxygenase turnover yields benzothiazole products from 2-mercaptoaniline and O2-dependent oxidation of primary alcohols. Archives of biochemistry and biophysics, 631, 66-74.

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Hydrogel Characterization using FT-IR Spectroscopy

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Hydrogels were spread as prepared
onto the crystal surface of a Bruker ALPHA-P FT-IR spectrometer equipped
with a multibounce attenuated total reflectance (ATR) plate. The transmittance
spectra were recorded (128 scans) between 4000 and 400 cm^–1 with a resolution of 4 cm^–1. HPLC grade water
was used as background and was automatically subtracted from the recorded
spectra using the OPUS software provided with the instrument. Peak
area relative intensity was evaluated by fitting the 1624 cm^–1 peak using a GassAmp function (Origin 9.0) after subtraction of
a straight baseline in the amide I region (1600–1700 cm^–1). The total intensity of the amide I region was obtained
by integration.

Elsawy M.A., Smith A.M., Hodson N., Squires A., Miller A.F, & Saiani A. (2016). Modification of β-Sheet Forming Peptide Hydrophobic Face: Effect on Self-Assembly and Gelation. Langmuir, 32(19), 4917-4923.

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Structural and Compositional Analysis of Mesoporous Silica Nanoparticles

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SAXRD analysis was performed to identify specific hexagonal two-dimensional peaks that appear only in MSN structures. SAXRD patterns were recorded in NANOPIX (RIGAKU, Tokyo, Japan) at an angle of 2θ and a scanning speed of 0.005°/s in the range of 0–6.5°.
Fourier transform infrared (FT-IR) spectroscopy was performed to confirm the binding that occurs during MSN synthesis. The FT-IR peak was confirmed using an ALPHA-P FT-IR spectrometer (Bruker Optics Inc., Billerica, MA, USA) in the range of 600 to 4000 cm⁻¹ at RT.

Kim M.K., Ki D.H., Na Y.G., Lee H.S., Baek J.S., Lee J.Y., Lee H.K, & Cho C.W. (2021). Optimization of Mesoporous Silica Nanoparticles through Statistical Design of Experiment and the Application for the Anticancer Drug. Pharmaceutics, 13(2), 184.

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ATR-FTIR Characterization of Dried Samples

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The ATR–FTIR spectra were recorded to confirm that all DMF had been evaporated from the dried samples. A Bruker Alpha-P FTIR spectrometer (Billerica, MA, USA) was used in the absorbance mode, with ATR platinum–diamond coupling. The samples were analysed at RT, 2 cm⁻¹ spectral resolution, at 64 scans per sample, and in the range 4000–400 cm⁻¹. The analysis was performed in triplicate, and the sample portion for analysis was randomly selected.

Cordeiro R., Alvites R.D., Sousa A.C., Lopes B., Sousa P., Maurício A.C., Alves N, & Moura C. (2023). Cellulose-Based Scaffolds: A Comparative Study for Potential Application in Articular Cartilage. Polymers, 15(3), 781.

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Analyzing Membrane Fouling via ATR-FTIR

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Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was applied to measure the amount of lignin originated fouling. GR95PP and UFX5-pHt membranes fouled with BL and TMP process water, respectively, were analyzed using Bruker ALPHA-p FTIR spectrometer in ATR mode. The spectral range was 500–4000

{cm}^{- 1}

resolution 2

{cm}^{- 1}

and data interval 1

{cm}^{- 1}

. UP010 membranes fouled with PHWE were analyzed using Perkin-Elmer Frontier spectrometer equipped with a diamond crystal. The spectral range was 400–4000

{cm}^{- 1}

, resolution 4

{cm}^{- 1}

and data interval 1

{cm}^{- 1}

. 10 points were measured from each membrane. Spectra were processed with ATR correction, baseline correction and normalization.

Virtanen T., Rudolph G., Lopatina A., Al-Rudainy B., Schagerlöf H., Puro L., Kallioinen M, & Lipnizki F. (2020). Analysis of membrane fouling by Brunauer-Emmett-Teller nitrogen adsorption/desorption technique. Scientific Reports, 10, 3427.

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Identifying MPs Chemical Composition

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The chemical composition of a representative sample of MPs was non-destructively identified by attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy. ATR-FTIR has become a standard analytical technique for identifying the chemical composition of samples larger than 0.5 mm. However, owing to this size constraint, the representative sample analyzed was made from those plastic particles that were at least 0.5 mm in one dimension. In total, 10% of the collected MPs were identified by ATR-FTIR. Scans were run at a resolution of 2 cm⁻¹ between 4000 and 650 cm⁻¹ on a Bruker Alpha-p FTIR spectrometer (Bruker, Billirica, MA, USA) fitted with a diamond single-bounce internal reflectance element. Spectra were compared with reference standards run on the same instrument and processed using Opus software supplied by Bruker. To make a positive polymer identification, we used the approach advocated by Frias et al. (2016) [37 (link)] and the European Union expert group on marine litter (Subgroup on Marine litter (TSG-ML)) to only accept matches of >70% similarity to the reference library samples [38 (link)].

Khan F.R., Shashoua Y., Crawford A., Drury A., Sheppard K., Stewart K, & Sculthorp T. (2020). ‘The Plastic Nile’: First Evidence of Microplastic Contamination in Fish from the Nile River (Cairo, Egypt). Toxics, 8(2), 22.

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