Water as a Detecting Agent in Thin Layer Chromatography of Surfactants

S, Simunić; Šoljić, Zvonimir

doi:10.1081/jlc-100101730

Cited by 6 publications

(2 citation statements)

References 4 publications

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“…Gas chromatography [1], high performance liquid chromatography [2], ion-pair chromatography [3], capillary electrophoresis [4,5], ion-exchange chromatography [6,7], conductometry [8], spectrophotometry [9] and thin layer chromatography [10][11][12] have all been used for this purpose. With the exception of TLC, other techniques are expensive and require the use of specialized equipment.…”

Section: Introductionmentioning

confidence: 99%

Use of an Aqueous Methionine Mobile Phase in Identification of Cetylpyridinium Chloride on a Kieselguhr Layer with Preliminary Separation from Nonionic Surfactants

Mohammad

Khatoon

2008

J Surfact & Detergents

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Thin layer chromatography of cationic and nonionic surfactants was performed on kieselguhr 'G' layers. Eight amino acids at three different concentration levels were used as aqueous mobile phase systems to examine the chromatographic behavior of cationic and nonionic surfactants. Among mobile phases used, a 0.01% methionine solution was found most suitable for the separation of cetylpyridinium chloride (CPC) from the mixture of nonionic surfactants on kieselguhr layers. The separation is not influenced by the presence of metal cations as impurities in the sample. None of the dyes, except ammonium purpurate and malachite green, hamper the separation. The exposure of the sample to UV radiation (k = 254 nm) also does not have any adverse effect on the separation of CPC from TritonX-100 and Brij-35. The R F values of surfactants were found to vary marginally on substitution of L-methionine by its D-isomer in the mobile phase or by the change in pH of the mobile phase (0.01% L-methionine) from 2.9 to 8.8. The proposed method can also be used for preparative thin layer chromatography.

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Section: Introductionmentioning

confidence: 99%

Use of an Aqueous Methionine Mobile Phase in Identification of Cetylpyridinium Chloride on a Kieselguhr Layer with Preliminary Separation from Nonionic Surfactants

Mohammad

Khatoon

2008

J Surfact & Detergents

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“…The most frequently used are silica or a non-polar phase like RP18; also others, less frequently used, are alumina, RP2, RP8 or aminopropyl-modified silica [20]. On the other hand, a large variety of solvent systems have been used in various mixed combinations for thin-layer chromatography of surfactants which involved lower alcohols, chloroform, acetone, benzene, dichloromethane, methyl ethyl ketone, acetonitrile, ethyl acetate, carbon tetrachloride, acetic acid and sulfuric acid as one of the components [21][22][23][24][25][26][27]. Surprisingly, the novel combination of formic acid with formamide as the mobile phase in TLC analysis of surfactants is lacking.…”

Section: Introductionmentioning

confidence: 99%

On Plate Identification of Coexisting Polyoxyethylene (20) Stearyl Ether, Cetyl Pyridinium Chloride, Tetradecyl Trimethyl Ammonium Bromide and Polyoxyethylene (9.5) Octyl Phenyl Ether Surfactants with Preliminary Separation by Planar Chromatography

Mohammad

Bhawani

2009

J Surfact & Detergents

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Separation studies of four surfactants (nonionic and cationic) were performed on silica high-performance thin-layer chromatographic plates with various solvent systems. The most useful chromatographic system for the mutual separation of coexisting polyoxyethylene (20) stearyl ether (C18EO20), cetylpyridinium chloride (CPC), tetradecyl trimethyl ammonium bromide (TTAB) and polyoxyethylene (9.5), octyl phenyl ether (OPEO9.5) was formamide ? 1 M formic acid (50:50 v/v). The nature of 'H' and 'H ? ' of formic acid (H-COO -H ? ) on the mobility of these surfactants was studied. The interference due to the presence of metal cations as impurities on the resolution of mixture of C18EO20, CPC, TTAB and OPEO9.5 was also examined. The limits of detection of C18EO20, CPC, TTAB and OPEO9.5 estimated were 0.0620, 0.0310, 0.0625 and 0.0312 lg/zone, respectively. The practical applicability of the proposed method was tested for the identification of four coexisting surfactants after their separation from the spiked aqueous systems.

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Planar Chromatography

Sherma

2000

Anal. Chem.

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Water as a Detecting Agent in Thin Layer Chromatography of Surfactants

Cited by 6 publications

References 4 publications

Use of an Aqueous Methionine Mobile Phase in Identification of Cetylpyridinium Chloride on a Kieselguhr Layer with Preliminary Separation from Nonionic Surfactants

Use of an Aqueous Methionine Mobile Phase in Identification of Cetylpyridinium Chloride on a Kieselguhr Layer with Preliminary Separation from Nonionic Surfactants

On Plate Identification of Coexisting Polyoxyethylene (20) Stearyl Ether, Cetyl Pyridinium Chloride, Tetradecyl Trimethyl Ammonium Bromide and Polyoxyethylene (9.5) Octyl Phenyl Ether Surfactants with Preliminary Separation by Planar Chromatography

Planar Chromatography

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