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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Capillary, glass ; Subambient temperatures ; Cryogenic unit, inexpensive ; Temp. programming from ca. -50°C ; Automobile exhaust analysis, improved separation ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0935-6304
    Keywords: Liquid chromatography ; Specific detections ; Post-column derivatization ; Fluorometric ion-pair technique ; Fluorometric determination of pharmaceutical amines ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0935-6304
    Keywords: Thin layer chromatography TLC ; Ammoniacal silver ion plates for polyunsaturated fatty acid methyl esters separation ; Rf-data versus number of double bonds ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0935-6304
    Keywords: High-performance thin-layer chromatography, HPTLC ; Sugar determination by fluorescence ; Detection limit ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0935-6304
    Keywords: Chromatography GC, HPLC, HPTLC ; stationary phase support/system ; open-pore foams from silica: two methods developed ; temperature stability at least up to 1000° ; porosity up to 0.9 ; pore size can vary from approximately 20 micrometer to 5 mm ; pore size distribution remarkably narrow ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0935-6304
    Keywords: Thin-layer chromatography, TLC ; Direct application of amniotic fluid without extraction ; Lecithin/Sphingomyelin ratio measured, precision approxi-mately 5% ; Procedure faster, simpler, requires less amniotic fluid ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0935-6304
    Keywords: Liquid chromatography ; Heterogeneity of particle structure ; Significant deviations from law of additivity in mixed phases increasing temperature reduces heterogeneity effects ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The effects produced in liquid-solid chromatography by the heterogeneity of adsorbent particles on the behaviour of a number of substances were studied. As adsorbent silica gels were used which varied a)In specific surface area and pore size,b)In the diameter of particles of the same microporous structure.A second series of experiments was conducted at various temperatures.The dependences which were based on measurements of equivalent retention volumes were found to deviate somewhat from those theoretically predicted. However, they confirm and supplement some previous observations [l-5] according to which mass transport may be effected by only a portion of the packing particles if their porous structure is adequately heterogeneous. These observations are in contrast with views expressed by some authors [6, 7] who maintain that differences in mass transport resistance may only result in peak deformation.It has also been demonstrated that the effects of the heterogeneity of particle structure in liquid chromatographic systems can be reduced by increasing the temperature.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0935-6304
    Keywords: High performance thin-layer chromatography ; Unsaturated fatty acids ; p-Hydroxybenzaldehyde ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A rapid method for the detection and quantltatlve determlnation of unsaturated fatty acids by TLC is presented. After separation on HPTLC-RP18-plates, reaction wlth p-hydroxybenzaldehyde is carried out by a dipping procedure. Nanogram amounts of unsaturated fatty acids can be determined with good reproducibility.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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