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; therefore, SFC has lower mass transfer resistance between stationary phase and mobile phase than HPLC. The viscosity of SF is close to that of gas, and the density is similar to that of certain liquid, which facilitates lower pressure drop at relatively high

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precisely specified points along the reactor (residence time). The high heat exchange efficiency allows rapid change of reaction conditions. The pressure resistance enables operation in superheated solvents. A, B, C, D = reagents; I = intermediates; P

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materials and have many advantages such as highly porous structure, nonhindered diffusion of solutes, very low flow resistance, very short residence time for both adsorption and elution; (2) to use as the alternative solid-phase extraction sorbent to extract

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Acta Chromatographica
Authors: Amanda Fernandes de Medeiros, Maria Gabriela Ferreira Rocha, Alexandre Coelho Serquiz, Richele Janaína Araújo Machado, Vanessa Cristina Oliveira Lima, Fabiana Maria Coimbra de Carvalho, Izael de Sousa Costa, Bruna Leal Lima Maciel, Elizeu Antunes dos Santos, and Ana Heloneida de Araújo Morais

resistance to a huge variation of temperatures and pHs, an advantage against the most varied conditions required for enzymatic reactions, and the inhibitory action upon trypsin may put this inhibitor as a biopharmacological candidate. Considering that

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nano-sorbents have proved to be especially effective because of their high specific surface areas, highly active surface sites, and the absence of internal diffusion resistance in the separation process [ 9 ]. Magnetic nanoparticles (MNPs) have

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Acta Chromatographica
Authors: Ruijie Chen, Mengrou Lu, Xiaoting Tu, Wei Sun, Weijian Ye, Jianshe Ma, Congcong Wen, Xianqin Wang, and Peiwu Geng

acid were obtained from Merck Company (Darmstadt, Germany). Ultrapure water (resistance >18 MΩ) was prepared by Milli-Q purification system (Bedford, USA). Figure 1. Chemical structure of panasenoside (A

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sulfate (SDS) with purity of 97% was purchased from Macklin Biochemical Co., Ltd. (Shanghai, China). Ultrapure water with the specific resistances of 18.2 MΩ·cm was produced by a Milli-Q ultrapure water system (Millipore, Bedford, MA, USA) for aqueous

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Acta Chromatographica
Authors: Muhammad Hanif, Shahid Shah, Nasir Rasool, Ghulam Abbas, Malik Saadullah, Sajid Mehmood Khan, Muhammad Masood Ahmed, Nazar Abbas, Mehran Ashfaq, and Omeira Iqbal

composed of uronic acid residues which are linked together by α -1, 4-glycosidic bonds [ 2 ]. The pectin is favored in formulations due to its resistance property against certain enzymes such as amylase and protease but a disadvantage of the early drug

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sulfate (SDS) with purity of 97% was purchased from Macklin Biochemical Co., Ltd. (Shanghai, China). Ultrapure water with the specific resistances of 18.2 MΩ·cm was produced by a Milli-Q ultrapure water system (Millipore, Bedford, MA, USA) for aqueous

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Journal of Thermal Analysis and Calorimetry
Authors: D. Sternik, M. Majdan, A. Deryło-Marczewska, G. Żukociński, A. Gładysz-Płaska, V. M. Gun'ko, and S. V. Mikhalovsky

[ 1 – 5 ]. The sieve-molecular properties, availability of strongly active surface sites, high resistance to acids and other useful properties of zeolites allow the use of them as catalysts in cracking, hydrocracking, isomerization and other processes

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