Light scattering detector evaporative

Evaporative light scattering detector (ELSD) is a universal, destructive, mass-flow detector, and sensitive, requires auxiliary gas, and is useable with isocratic or gradient mobile phases but with [Pg.935]

ELSD obtains a more accurate representation of sample mass than UV [Pg.937]

ELSD shows what maybe missing from your UV chromatogram [Pg.937]

ELSD replaces RI with higher 0 sensitivity and stable baselines [Pg.937]

Use ELSD in parallel with MS to obtain maximum structural and concentration information [Pg.937]

FIGURE 12,3 Separation of polyester oligomers, 2 X PLgel 3 jum MIXED-E 300 X 7.5 mm, eluent THE at 1.0 ml/min, evaporative light scattering detector... [Pg.357]

Thin-layer chromatography (TLC) is used both for characterization of alcohol sulfates and alcohol ether sulfates and for their analysis in mixtures. This technique, combined with the use of scanning densitometers, is a quantitative analytical method. TLC is preferred to HPLC in this case as anionic surfactants do not contain strong chromophores and the refractive index detector is of low sensitivity and not suitable for gradient elution. A recent development in HPLC detector technology, the evaporative light-scattering detector, will probably overcome these sensitivity problems. [Pg.283]

Mengerink et al. [243] describe for the analysis of ether carboxylic acids and mixtures thereof with ethoxylated alcohols an HPLC method with the use of a evaporative light-scattering detector (ELSD). [Pg.348]

Many different detectors are used in RPLC, including ultraviolet-visible spectrophotometers (UV-VIS), refractive index (RI) detectors, electrochemical (EC) detectors, evaporative light-scattering detectors, fluorimeters, and... [Pg.151]

Detection is also frequently a key issue in polymer analysis, so much so that a section below is devoted to detectors. Only two detectors, the ultra-violet-visible spectrophotometer (UV-VIS) and the differential refractive index (DRI), are commonly in use as concentration-sensitive detectors in GPC. Many of the common polymer solvents absorb in the UV, so UV detection is the exception rather than the rule. Refractive index detectors have improved markedly in the last decade, but the limit of detection remains a common problem. Also, it is quite common that one component may have a positive RI response, while a second has a zero or negative response. This can be particularly problematic in co-polymer analysis. Although such problems can often be solved by changing or blending solvents, a third detector, the evaporative light-scattering detector, has found some favor. [Pg.333]

Figure 8 Construction of the evaporative light-scattering detector. (From Stock-well, P. B. and King, B. W., Am. Lab., 23, 19, 1991. With permission.)...

Righezza, M. and Guiochon, G., Effect of the wavelength of the laser beam on the response of an evaporative light-scattering detector, /. Liq. Chromatogr., 11, 2709, 1988. [Pg.369]

Schultz, R. and Engelhardt, H., The application of an evaporative light-scattering detector in polymer analysis, Chromatographia, 29, 517, 1990. [Pg.369]

Mourey, T. H. and Oppenheimer, L. H., Principles of operation of an evaporative light-scattering detector for liquid chromatography, Anal. Chem., 56, 2427, 1984. [Pg.370]

ELSD Evaporative light scattering detector Raleigh scattering of atomised eluent... [Pg.177]

DSC Differential scanning calorimetry ELS(D) Evaporative light scattering (detector)... [Pg.753]

Schultz, R., Engelhardt, H. (1990). The Application of an Evaporative Light Scattering Detector in Polymer Analysis. Chromatographia 29, 517. [Pg.422]

Mengerink, Y., De Man, H.C.J., Van der Wal, S. (1991). Use of an evaporative light scattering detector in reversed-phase high-performance liquid chromatography of oligomeric surfactants. J. Chromatogr. A 552(1-2), 593-604. [Pg.444]

Trathnigg, B., Kollroser, M.J. (1997). Liquid chromatography of polyethers using universal detectors V. Quantitative aspects in the analysis of low-molecular mass poly(ethylene glycols) and their derivatives by reversed-phase HPLC with an evaporative light scattering detector. J. Chromatogr. A 768, 223-238. [Pg.445]

Detection Inlet heat exchangers Flow cell volume and geometry MS ion sources Sprayers (e.g., in evaporative light scattering detectors) Data filtering effects in high speed applications... [Pg.103]

Evaporative light scattering detector, liquid chromatography, 4 623 Evaporators... [Pg.339]

Good compatibility of the mobile phase with MS and evaporative light scattering detectors... [Pg.345]

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