Hydrophobic Interaction Chromatography - Sigma-Aldrich

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Solvents and Cartridges Hydrophobic Interaction Chromatography Solvents In high performance liquid chromatography the quality and reproducibility of the separation depends not only on the properties of the stationary phase, but decisively on the quality of the solvents used. The solvent line CHROMOSOLV ® offers guaranteed quality specially tailored to chromatographic requirements, in conjunction with batch consistency. For more information on CHROMOSOLV, please visit sigma.com/lc-ms-solvents. LC-MS CHROMASOLV Solvents for LC-MS Analysis Choice of solvent can seriously affect the performance of an LC-MS system. Impurities arising from the solvent can mask low levels of target ions or give false peaks, resulting in faulty interpretation of spectra. Sigma-Aldrich’s LC-MS CHROMASOLV solvents are manufactured specifically to meet the needs of modern LC-MS instruments. They have particulary low (max. 100 ppb) levels of alkaline impurities, such as calcium, magnesium, potassium and sodium, which can form clusters with the analyte, especially when using electrospray ionization. By reducing these clusters more sample peaks can be identified in a shorter time. Description Cat. No. Solvents for HPLC Water 39253 Acetonitrile 34967 Methanol 34966 2-Propanol 34965 Ethyl acetate 34972 LC-MS CHROMASOLV Blends Acetonitrile with 0.1% trifluoracetic acid 34976 Acetonitrile with 0.1% acetic acid 34678 Acetonitrile with 0.1% ammonium acetate 34669 Acetonitrile with 0.1% formic acid 34668 Methanol with 0.1% acetic acid 34672 Methanol with 0.1% ammonium acetate 34670 Methanol with 0.1% trifluoroacetic acid 34974 Water with 0.1% trifluoracetic acid 34978 Water with 0.1% acetic acid 34675 Water with 0.1% ammonium acetate 34674 Water with 0.1% formic acid 34673 Water/2-propanol (rinsing agent for LC-MS) 34689 G CHROMASOLV solvents for gradient elution The G CHROMASOLV qualities were developed for sensitive gradient elutions at short wavelengths and with very high requirements with regard to UV-transmittance and fluorescence detection. Acetonitrile 34998 Ethanol 34963 Methanol 34885 2-Propanol 34959 Water 34877 38 ORDER: 800-325-3010 TECHNICAL SERVICE: 800-325-5832 sigma.com
Description Cat. No. P CHROMASOLV ® solvents for preparative LC The specifications of the P CHROMASOLV qualities are tailored fully to the requirements of preparative liquid chromatography. In particular this means low contents of non-volatile impurities and free of alkali. Acetonitrile 34989 Dichloromethane 34977 Toluene 34987 CHROMASOLV solvents for HPLC The CHROMASOLV solvents are characterized by high UV-transmittance, consistent gradient testing for interfering peaks and baseline drift, guaranteed suitability for fluorescence detection, low non-volatile components, low free acid and free alkali, and an exactly defined low water content. Acetone 34850 Acetonitrile 34851 1-Butanol 34867 2-Butanone 34861 tert-Butyl methyl ether 34875 1-Chlorobutane 34958 Cyclohexane 34855 1,2-Dichloroethane 34872 Dichloromethane 34856 Description Cat. No. Dimethyl sulfoxide 34869 1,4-Dioxane 34857 Ethyl acetate 34858 Ethanol 34852 Heptane 34873 Hexane 34859 Methanol 34860 2,2,4-Trimethylpentane 34862 Pentane 34956 1-Propanol 34871 2-Propanol 34863 Tetrahydrofuran 34865 Toluene 34866 Chloroform 34854 1,1,2-Trichloro-1,2,2-trifluoroethane 34874 Hydrophobic Interaction Chromatography Our Innovation, Your Research — Shaping the Future of Life Science 39
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Hydrophobic Interaction Chromatography - Sigma-Aldrich

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