Ion exchange and liquid column chromatography

Walton, Harold F.

doi:10.1021/ac50028a005

Cited by 38 publications

(10 citation statements)

References 155 publications

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“…371 Reviews of the technique have appeared. 297 ' 298 ' 303 Thin-layer and paper chromatography. Thin-layer chromatography (TLC) has been used extensively for the separation and purification of compound fractions prior to instrumental analysis.…”

Section: Chromatography and Ancillary Techniquesmentioning

confidence: 99%

Organic Compounds in Urban Atmospheres: A Review of Distribution, Collection and Analysis

Lamb¹,

Petrowski²,

Kaplan

et al. 1980

Journal of the Air Pollution Control Association

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Section: Chromatography and Ancillary Techniquesmentioning

confidence: 99%

Organic Compounds in Urban Atmospheres: A Review of Distribution, Collection and Analysis

Lamb¹,

Petrowski²,

Kaplan

et al. 1980

Journal of the Air Pollution Control Association

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“…Organic stationary phases, chemically bonded onto the surface of mineral supports such as silica, are widely used in LLC and have gained increasing importance during the past few years (Ref. [5][6][7][8][9][10][11]. Many experimental studies have been reported 1>n the chroma.tographic behavior of these bonded phases, which structure was called "molecular fur" by Horvath and Melander (Ref.39).…”

Section: ~ ~)mentioning

confidence: 99%

“…[1][2] and more recently for the separation of low molecular weight solutes (Ref. [2][3][4][5]. In another hand, chemically bonded stationary phases are commonly used in liquid liquid chromatography (LLC) (Ref.…”

Section: Introductionmentioning

confidence: 99%

“…In another hand, chemically bonded stationary phases are commonly used in liquid liquid chromatography (LLC) (Ref. [5][6][7][8][9][10][11] ; some of them having macromolecular grafts. Besides, grafted GPC packings were proposed for the molecular weight characterization of organic or hydrosoluble polymers and some of them have been commercialized, such as "glycophases" (Ref.…”

Section: Introductionmentioning

confidence: 99%

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Theoretical and experimental aspects of fractionation mechanisms in liquid chromatography on macromolecular stationary phases (gel or bonded chains)

Lecourtier¹,

Audebert²,

Quivoron³

1979

Pure and Applied Chemistry

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Abstract-In a preliminary part, we deal with the partition mechanism of low or high molecular weight solutes, by selective dissolution in swollen gels. After summing up the theoretical expressions, we present some experimental evidences for a fractionation mechanism based on such a phenomenon, which may interfere , in many cases, with the classical steric exclusion effect in GPC. Most of this paper is devoted to chemically bonded stationary phases which gained increasing importance in H.P.L.C., during the past few years. Owing to our previous works on gels, we theoretically studied the partition coefficient of low or high molecular weight solutes between a mobile phase and a stationary phase, constituted by macromolecular chains bonded to an inert surface. Variations of partition coefficient with the molecular sizes of solute, solvent and graft, and with the molecular interaction parameters between these species, are presented. In a complementary aspect, we describe the recent preparation of model chemically bonded phases of silica/polyethyleneoxide and silica/polystyrene types. The retention data obtained for various solutes on these bonded phases are discussed in terms of silica loading, grafting chain length, solute size and solvent nature. These theoretical and experimental studies lead to practical consequences concerning the relative parts of the dissolution effect into the grafted phase, the adsorption on the mineral support and the steric exclusion effect due to the residual porosity.

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“…They usually dealt only with the non-volatile ones, because they analyzed the contents of organic acids only by gas-chromatography. Recently high performance liquid chromatography (HPLC) has been used to analyze the organic compounds in plant tissues (6). And the instrument has also been in conjunction with the radio-analyzer to study the organic acid metabolism in plants (7).…”

mentioning

confidence: 99%

Detection of organic acids in soybean nodules by high performance liquid chromatography

Kawai

Mori

1984

Soil Science and Plant Nutrition

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Ion exchange and liquid column chromatography

Cited by 38 publications

References 155 publications

Organic Compounds in Urban Atmospheres: A Review of Distribution, Collection and Analysis

Organic Compounds in Urban Atmospheres: A Review of Distribution, Collection and Analysis

Theoretical and experimental aspects of fractionation mechanisms in liquid chromatography on macromolecular stationary phases (gel or bonded chains)

Detection of organic acids in soybean nodules by high performance liquid chromatography

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