HETP


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HETP

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Cryogels used in this way are generally evaluated according to aspects associated with flow in fixed beds, determining the equivalent number of theoretical plates (HETP), the distribution of residence times, the coefficient of axial dispersion and flow permeability [1],
The use of the method of moments to determine the retention times and variance of the samples was shown to be adequate, since, considering the asymmetry observed, other methods could have resulted in greater errors [1, 29, 30], Figures 6 and 7 show the values obtained for apparent axial dispersion coefficient and HETP.
The HETP of the column produced varied little as a function of the mobile phase velocity, with a value of about 2.8 mm being observed for pulses (Fig.
Various factors affect HETP and the axial dispersion coefficient in cryogels, because they alter the pore structure, such as the synthesis composition and conditions, amongst others [35].
HETP's foul language by itself doesn't kill anyone but his whole attitude has led to countless deaths of 'suspects' in Davao City where he is still dictator and in the country as a whole which is turning into a dictatorship.
HETP = 2([[E.sub.b]/v] + 2[chi square](1 - [epsilon]/[epsilon])([[d.sub.p]/6[k.sub.t]] + [d.sup.2.sub.p/60[[epsilon].sub.p][D.sub.p])v (17)
For systems with linear adsorption isotherms, the efficiency of a chromatographic column can be quantified as the height equivalent to a theoretical plate (HETP), which can be related to the liquid-phase linear velocity and the key mass-transfer parameters of the system through Equation 17.
NOMENCLATURE BCD Base Catalyzed Depolymerization DCM Dichloromethane DEE Diethyl Ether EtAc Ethyl Acetate FLC Flash Liquid Chromatography GPC Gel Permeation Chromatography HETP Height Equivalent of a Theoretical Plate LC Liquid Chromatography LL Liquid-Liquid LLE Liquid-Liquid Extraction MeFu Methyl Furan MRF Monomers Rich Fraction NREL National Renewable Energy Laboratory RON Research Octane Number RP HPLC Reverse Phase High Performance Liquid Chromatography SEAL Steam-Exploded Aspen Lignin
In June, Robin Wilson Home won the Hake Mine a Million $ Business competition, sponsored by micro loan provider Count Me In for Women's Economic Independence and OPEN from American Express' small business arm, designed to hetp women-owned companies grow.
Pre-validation indicates the columns meet bioburden, endotoxin, HETP and asymmetry specification for the resin.
The HETP is the theoretical link between the Plate Theory and the Rate Theory as the HETP is numerically equal to the variance per unit length of the column as determined from the Rate Theory.