Ods a column

Manufactured by Agilent Technologies

The ODS-A column is a high-performance liquid chromatography (HPLC) column designed for the separation and analysis of a wide range of organic compounds. It features a stationary phase of octadecylsilane (ODS) bonded to silica particles, which provides excellent retention and selectivity for a variety of analytes.

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Lab products found in correlation

Sephadex lh 20, by GE Healthcare (2 mentions) Rp c18 silica gel, by Mitsubishi (2 mentions) Rp c18 silica gel, by Mitsubishi Chemical Corporation (2 mentions) Avance 3 600 spectrometer, by Bruker (1 mentions) Ft ir 480 spectrophotometer, by Jasco (1 mentions) Uv 2450 spectrophotometer, by Shimadzu (1 mentions) Sb c18 column, by Agilent Technologies (1 mentions) Tensor 37 infrared spectrophotometer, by Bruker (1 mentions) Mat95xp high resolution mass spectrometer, by Thermo Fisher Scientific (1 mentions) Am400 nmr spectrometer, by Bruker (1 mentions) Mci gel chp 20p, by Mitsubishi Chemical Corporation (1 mentions) Chirascan spectrometer, by Applied Photophysics (1 mentions) Ltq orbitrap xl mass spectrometer, by Thermo Fisher Scientific (1 mentions) Avance drx600 spectrometer, by Bruker (1 mentions) Mci gel chp20 p120, by Mitsubishi Chemical Corporation (1 mentions)

3 protocols using ods a column

Spectroscopic Characterization of Novel Compounds

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IR spectra were recorded on a JASCO FT/IR-480 spectrophotometer and reported as wave number (cm⁻¹). ¹ H, ¹³ C NMR spectra and 2D NMR spectra were recorded on a Bruker Avance III 600 spectrometer. Chemical shifts (δ) were expressed in ppm with reference to TMS. HRESIMS data were obtained on an Agilent UPLC/TOF-MS spectrometer. Column chromatography (CC) was performed on silica gel (200‒300 µm; Qingdao Marine Chemical Co. Ltd., China), RP-18 silica gel (SMB-100-25/45, FUJI, Japan) and Sephadex LH-20 (GE Healthcare Bio-Sciences AB SE-75,184 Uppsala, Sweden). Preparative HPLC was performed on Agilent 1100 apparatus equipped with a YMC-Pack ODS-A column (12 µm, 10 × 25 mm). Biological assay data were recorded on microplate reader (Thermo Multiskan PC).

Wang S.H., Guo C., Cui W.J., Xu Q.X., Zhang J., Jiang J.Z., Liu Y., Chen S., Chen C., Cheng J.T, & Liu A. (2023). Two pyrrole acids isolated from Phyllanthus emblica L. and their bioactivities. Natural Products and Bioprospecting, 13(1), 26.

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Spectroscopic Analysis of Natural Compounds

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The melting point was measured on an X-5 melting point instrument and was uncorrected. Optical rotations were obtained with a PerkinElmer 341 automatic polarimeter. UV spectra were recorded with MeOH as the solvent using a Shimadzu UV-2450 spectrophotometer. IR spectra were determined on a Bruker Tensor 37 infrared spectrophotometer with KBr pellets. The 1D and 2D NMR spectra were obtained on a Bruker AM-400 NMR spectrometer with tetramethylsilane (TMS) as an internal reference. HREIMS were measured on a Thermo MAT95XP high-resolution mass spectrometer, and EIMS on a Thermo DSQ EIMS spectrometer. HRESIMS were acquired on a Shimadzu LCMS-IT-TOF instrument, and the ESIMS on an Agilent 1200 series LC-MS/MS system. RP-C₁₈ silica gel (Fuji, 40–75 μm), MCI gel (CHP20P, 75–150 μm, Mitsubishi Chemical Corporation, Tokyo, Japan), silica gel (200–300 Mesh Marine Chemical Ltd., Qingdao, People’s Republic of China), and Sephadex LH-20 (GE Healthcare Bio-Sciences AB, Sweden) were used for column chromatography (CC). Semipreparative HPLC separations were carried out on a LC-20AT Shimadzu liquid chromatography system with a YMC-Pack ODS-A column and an Agilent SB-C₁₈ column (250 × 9.4 mm, 5 μm) connected with an SPD-M20A diode array detector.

Luo P., Xia W., Morris-Natschke S.L., Lee K.H., Zhao Y., Gu Q, & Xu J. (2017). Vitepyrroloids A–D, 2-Cyanopyrrole-Containing Labdane Diterpenoid Alkaloids from the Leaves of Vitex trifolia. Journal of natural products, 80(5), 1679-1683.

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Spectroscopic Analysis of Natural Products

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¹H NMR, ¹³C NMR and 2D NMR spectra were acquired on a Bruker Avance DRX-600 spectrometer (600 MHz for ¹H NMR and 150 MHz for ¹³C NMR). HRESIMS spectra were obtained from an LTQ Orbitrap XL mass spectrometer (Thermo Fisher scientific). The optical rotations were measured by GYROMAT-HP polarimeter (Anton paar). The ECD spectra were carried out on an applied Photophysics Chirascan spectrometer. Semipreparative HPLC was performed on an Agilent 1260 instrument equipped with a diode array detector (DAD) and a YMC-Pack ODS-A column. For column chromatography, silica gel (200–300 mesh, Qingdao Haiyang Chemical Group Corporation), Sephadex LH-20 (25–100 µm, Pharmacia Bio-teck), MCI gel (CHP20/P120, 120 µm, Mitsubishi chemical corporation), and RP-C₁₈ silica gel (75 µm, YMC ODS-A) were used. TLC was carried out with silica gel GF₂₅₄ plates (Qingdao Haiyang Chemical Group Corporation).

Peng G.C., Hao J.H., Guan Y.Q., Wang Y.Y., Liu M.J., Li G.H., Xu Z.P., Wen X.S, & Shen T. (2024). Systematic investigation of the material basis, effectiveness and safety of Thesium chinense Turcz. and its preparation Bairui Granules against lung inflammation. Chinese Medicine, 19, 67.

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