Tensammetry with accumulation on the hanging mercury drop electrode

Pawlak, M.K.; Łukaszewski, Zenon

doi:10.1016/s0003-2670(00)85904-8

Cited by 13 publications

(7 citation statements)

References 4 publications

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“…In such a case the calibration graph rebuilds the sigmoidal shape (see Figure 5, curve b). The appearance of narrow peak (11) was also reported for oxyethylated n-octadekanol 18-6 (6 oxyethylene subunits) and for a higher concentration of surfactant 18-10 (10 oxyethylene subunits) [6]. A trace of this peak is visible on the tensammetric curves of surfactant 18-14 (14 oxyethylene subunits) [6].…”

Section: Discussionsupporting

confidence: 59%

“…Also straight-chain oxyethylated alcohols having the C,,-C,, hydrophobe were fragmentarily examined (5-71. As for the oxyethylated alcohols having the c16-c,, hydrophobe, workers have published articles investigating the behavior of oxyethylated n-octadekanols having an oxyethylene chain of 6,10, and 14 oxyethylenesubunits [6] as well as the behavior of their mixtures [S]. The behavior of Rokanol RZ-12 (surfactant having c,6-C,, and av.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Adsorptive stripping tensammetry of commercially available oxyethylated alcohols: Part 2. Surfactants having C₁₆C₁₈hydrophobe

Szymański

Łukaszewski

1991

Electroanalysis

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The behavior of oxyethylated straight chain alcohols having the CI6-C,, hydrophobe and 10, 18, 25, 30, and 40 oxyethylene subunits was investigated. The dependences of the peak height on the concentration of surfactant, preconcentration time, and preconcentration potential were examined. Roughly, the behavior of the surfactants having 10-30 oxyethylene subunits can be described as the behavior of the system of two peaks: the dispersed one, which shifts toward a negative direction with the increase of concentration, and the narrow one, which has a stable position. The narrow peak is useful for analytical purposes whereas the dispersed one makes the background current worse. The surfactant having 40 oxyethylene subunits forms two narrow closely located peaks, useful for analysis. The peaks of all surfactants increase linearly with the increase of the number of oxyethylene subunits, under selected conditions.

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Section: Discussionsupporting

confidence: 59%

Section: Introductionmentioning

confidence: 99%

Adsorptive stripping tensammetry of commercially available oxyethylated alcohols: Part 2. Surfactants having C₁₆C₁₈hydrophobe

Szymański

Łukaszewski

1991

Electroanalysis

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“…This association causes the formation of a complex peak, being frequently lower than in the case of a monomer of surfactant. A similar effect was observed in the series of oxyethylated alcohols having 14 oxyethylene subunits and a variable length of alkyl chain (C6, C10 and C14) [1]. The increase in the length of alkyl moiety initially caused a strong increase in the peak height but also a tendency to a more complex con®guration of a tensammetric peak (for surfactant 18±14).…”

Section: Resultssupporting

confidence: 66%

The Effect of Alkyl Length on the Analytical Signal of Monoalkylethers of Butylene Oxide‐Ethylene Oxide Block Copolymers in Adsorptive Stripping Tensammetry

et al. 2001

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Monoalkylethers of butylene oxide – ethylene oxide block copolymers (ABE) belong to nonionic surfactants. ABE are electroinactive and do not contain chromophoric groups. Therefore, the number of available analytical methods for ABE determination is very limited. Tensammetry provides an opportunity to increase the number of available analytical methods. A series of four surfactants corresponding to the formula: RO[CH2CH(C2H5)O]3(CH2CH2O)10 H where R=n‐C10H21 (C10B3E10), n‐C8H17 (C8B3E10), n‐C6H13 (C6B3E10) or n‐C4H9 (C4B3E10), were investigated under the conditions of adsorptive stripping tensammetry (AdST). The morphology of tensammetric peaks, as well as peak height dependences on the concentration of a corresponding surfactant, preconcentration time and potential were investigated. All four surfactants form negative tensammetric peaks roughly between −1.6 and −1.7 V. The peak height follows the sequence: C4B3E10≈C6B3E10≪C10B3E10

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“…The AST behavior of oxyethvlated alcohols and their mixtures have been comparatively widely investigated [4,. Oxyethylated alkylphenols 13,121 and poly( ethylene glycols) [ 2,131 were also characterized.…”

Section: Oxyethylene-oxypropylene Block Copolymers (Oeopbc)mentioning

confidence: 99%

Adsorptive stripping tensammetry of oxyethylene‐oxypropylene block copolymers

Szymański

Łukaszewski

1994

Electroanalysis

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The behavior of oxyethylene-oqpropylene block copolymers (OEOPBC) of EPE type was investigated. Most of the investigations were performed with OEOPBC having 30 oxT\propylene subunits and different lengths of oxyethylene chain. The dependences of the peak height on the concentration of surfactant, preconcentration time, and preconcentration potential were examined. OEOPBC partially behave in agreement with the general scheme of the behavior of ethoxylates, formulated on the basis of previous studies and predicting two types of behavior. The scheme has been supplemented with the third type of behavior on the basis of this work: a single peak is formed whose potential is stable, independent of changes of the surfactant concentration, preconcentration time, and potential. All the investigated OEOPBC give peaks suitable for analytical purposes,

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Tensammetry with accumulation on the hanging mercury drop electrode

Cited by 13 publications

References 4 publications

Adsorptive stripping tensammetry of commercially available oxyethylated alcohols: Part 2. Surfactants having C₁₆C₁₈hydrophobe

Adsorptive stripping tensammetry of commercially available oxyethylated alcohols: Part 2. Surfactants having C₁₆C₁₈hydrophobe

The Effect of Alkyl Length on the Analytical Signal of Monoalkylethers of Butylene Oxide‐Ethylene Oxide Block Copolymers in Adsorptive Stripping Tensammetry

Adsorptive stripping tensammetry of oxyethylene‐oxypropylene block copolymers

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Tensammetry with accumulation on the hanging mercury drop electrode

Cited by 13 publications

References 4 publications

Adsorptive stripping tensammetry of commercially available oxyethylated alcohols: Part 2. Surfactants having C16C18hydrophobe

Adsorptive stripping tensammetry of commercially available oxyethylated alcohols: Part 2. Surfactants having C16C18hydrophobe

The Effect of Alkyl Length on the Analytical Signal of Monoalkylethers of Butylene Oxide‐Ethylene Oxide Block Copolymers in Adsorptive Stripping Tensammetry

Adsorptive stripping tensammetry of oxyethylene‐oxypropylene block copolymers

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Adsorptive stripping tensammetry of commercially available oxyethylated alcohols: Part 2. Surfactants having C₁₆C₁₈hydrophobe

Adsorptive stripping tensammetry of commercially available oxyethylated alcohols: Part 2. Surfactants having C₁₆C₁₈hydrophobe