Some industrial developments and applications of multidimensional techniques

Crummett, Warren B.; Cortes, Hernan J.; Fawcett, T. G.; Kallos, George J.; Martin, Steve; Putzig, C. L.; Tou, James C.; Turkelson, V. T.; Yurga, Lori.; Zakett, D.

doi:10.1016/0039-9140(89)80082-7

Cited by 6 publications

(4 citation statements)

References 30 publications

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“…Cross-linking is done by the manufacturer to add strength to the material. The cross-linked material response time was found in the past to be longer and, therefore, less desirable than for the non-cross-linked material (5,14). But, a cross-linked silicone polymer probe was found to perform well in the water vapor test.…”

Section: Methodsmentioning

confidence: 98%

Hollow fiber membrane probes for the in situ spectrometric monitoring of nitrogen trichloride formation during wastewater treatment

Savickas¹,

LaPack²,

Tou³

1989

Anal. Chem.

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Section: Methodsmentioning

confidence: 98%

Hollow fiber membrane probes for the in situ spectrometric monitoring of nitrogen trichloride formation during wastewater treatment

Savickas¹,

LaPack²,

Tou³

1989

Anal. Chem.

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“…A complete and exhausting review of this technique is beyond the scope of this paper. However, for some industrial developments and applications of multidimensional techniques, the reader is referred to a recent review by Crummett et al 29 Also, the reader interested in the applications of two-dimensional nuclear magnetic resonance may consult a review by Perrin and Dwyer. 30 The theory and data manipulation methods have been described in detail elsewhere.22,31-33 II.…”

Section: Introductionmentioning

confidence: 99%

Applications of multidimensional absorption and luminescence spectroscopies in analytical chemistry

Ndou¹,

Warner²

1991

Chem. Rev.

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“…1970, 42, 1142-1147. GPC/GC, was carried out by Cortes et al 13 and Crummett et al 14 Since 1990, there has been great interest in the development of 2-D chromatographic systems using capillary zone electrophoresis (CZE), GC, and SFC. Knowledge of retention orthogonality is useful for more than predicting complementary combinations of chromatographies.…”

mentioning

confidence: 99%

“…Novel research on 2-D analytical techniques, which included LC/GC and GPC/GC, was carried out by Cortes et al . and Crummett et al …”

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confidence: 99%

Informational Orthogonality of Two-Dimensional Chromatographic Separations

et al. 1996

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A qualitative informational similarity technique has been used to describe the informational orthogonality of projected two-dimensional (2-D) chromatographic separations of complex mixtures from their one-dimensional 1-D separations. The reversed-phase liquid chromatography (RPLC), supercritical fluid chromatography (SFC), gas-liquid chromatography (GLC), and micellar electrokinetic capillary chromatography (MECC) retention behavior of up to 46 solutes of varying molecular properties was studied by 2-D range-scaled retention time plots and information entropy calculations. One hundred five combinations of technique/stationary phase pairs were used to simulate the 2-D chromatographic analyses. The informational entropy of one and two dimensions, the mutual information, the synentropy or "cross information", and the informational similarity were calculated to describe the informational orthogonality. In addition, pattern descriptors were used to qualitatively describe the 2-D peak distribution. With the solutes tested, informational orthogonality, zero informational similarity, was observed with MECC-SDS/SFC-C1, MECC-SDS/SFC-Carbowax, MECC-TTAB/SFC-Carbowax, HPLC-C18/GLC-DB-5, HPLC-PBD/SFC-phenyl, SFC-Carbowax/GLC-DB5, and HPLC-phenyl/SFC-phenyl 2-D chromatographic systems. Conversely, with the solutes tested, informational nonorthogonal behavior described by range-scaled retention time plots to moderate to severe band overlap and data clustering was observed with 2-D chromatographic systems with high informational similarity and moderate to high degrees of synentropy. These results should prove useful for predicting complementary 2-D techniques as well as for choosing a second separation technique for confirmation of separation or peak purity.

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Some industrial developments and applications of multidimensional techniques

Cited by 6 publications

References 30 publications

Hollow fiber membrane probes for the in situ spectrometric monitoring of nitrogen trichloride formation during wastewater treatment

Hollow fiber membrane probes for the in situ spectrometric monitoring of nitrogen trichloride formation during wastewater treatment

Applications of multidimensional absorption and luminescence spectroscopies in analytical chemistry

Informational Orthogonality of Two-Dimensional Chromatographic Separations

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