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Gradient Delivery Systems

Pressure Drop Changes due to Changes in the Eluent Composition [Pg.13]

It takes a certain time for the outlet profile to reach a plateau. During this adsorption period a new equilibrium is established, with a liquid concentration being the feed concentration c". Likewise, during the desorption step the initial equilibrium is restored with a delay of tjeg. This experimental procedure is easy to implement and to automate if a gradient delivery system is available. [Pg.385]

HPLC has also been used to determine the residue levels of dinifroaniline herbicides. Pendimethalin was quantified by HPLC under the following conditions apparatus, Spectroflow 400 solvent delivery system. Model 430 gradient former, and Kratos Model 783 with UV absorbance detection at 239 nm column, Cig reversed-phase (25cmx 3.0-mm i.d.) temperature, 40 °C mobile phase, acetonitrile-water (7 3, v/v) flow rate, 1 mL min . ... [Pg.394]

Supercritical fluid chromatography pressure gradient solvent delivery system Pierce Chemicals Life Science Laboratories Ltd Sedgewick Road Luton... [Pg.500]

The traditional HPLC instrument is composed of two different parts the first part separates the components of the sample and the other part accomplishes the detection of the components separated. The part of the HPLC carrying out the separation contains a column, an injection device and the eluent delivery system (pump with filters, degasser and transfer tubing, eventually a mixer for gradient elution). One or more detectors, a signal output device coupled with appropriate software, are responsible for detection and primary data evaluation. Pumps deliver the eluent or the different components of the eluent into the column with a precise, constant and reproducible flow rate. [Pg.42]

Abra RM, Bankert RB, Chen F, et al. The next generation of liposome delivery systems recent experience with tumor-targeted, sterically-sbailized immuno-liposomes and active-loading gradients. J Liposome Res 2002 12 1-3. [Pg.24]

Over the past 20 years, our laboratory has played a major role in the development of liposomal systems optimized for the delivery of conventional drugs, almost all of which are encapsulated by pH-gradient techniques. Our initial studies led to the development of several liposomal drug delivery systems in which uptake was driven by the citrate method of generating pH gradients (15,21-23,27,54—58). This was followed by the development of new... [Pg.29]

Appropriate gradient-capable solvent delivery system Sample injection valve... [Pg.948]

Table F4.4.1 Linear Gradient Conditions for Separation of Chlorophylls and Their Nonpolar Derivatives Using a Ternary/Quaternary Solvent Delivery System... Table F4.4.1 Linear Gradient Conditions for Separation of Chlorophylls and Their Nonpolar Derivatives Using a Ternary/Quaternary Solvent Delivery System...
See other pages where Gradient Delivery Systems is mentioned: [Pg.13]    [Pg.96]    [Pg.724]    [Pg.279]    [Pg.123]    [Pg.139]    [Pg.696]    [Pg.1481]    [Pg.176]    [Pg.958]    [Pg.959]    [Pg.652]    [Pg.13]    [Pg.96]    [Pg.724]    [Pg.279]    [Pg.123]    [Pg.139]    [Pg.696]    [Pg.1481]    [Pg.176]    [Pg.958]    [Pg.959]    [Pg.652]    [Pg.125]    [Pg.224]    [Pg.282]    [Pg.285]    [Pg.290]    [Pg.799]    [Pg.510]    [Pg.42]    [Pg.218]    [Pg.565]    [Pg.529]    [Pg.153]    [Pg.156]    [Pg.12]    [Pg.651]    [Pg.38]    [Pg.45]    [Pg.330]    [Pg.64]    [Pg.85]    [Pg.86]    [Pg.796]    [Pg.175]    [Pg.110]    [Pg.581]    [Pg.792]    [Pg.233]    [Pg.484]    [Pg.93]   


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Gradient system

Solvent delivery systems composition gradients

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