X-ray fluorescence spectrometric determination of sulfur-containing anionic surfactants in water after their enrichment on a membrane filter as an ion-pair complex with a cationic surfactant

The Analyst ◽  
2001 ◽  
Vol 126 (11) ◽  
pp. 2078-2081 ◽  
Author(s):  
Shigeru Taguchi ◽  
Kenji Takahashi ◽  
Noriko Hata ◽  
Issei Kasahara
Keyword(s):  
Cationic Surfactant ◽  
Anionic Surfactants ◽  
Membrane Filter ◽  
Ion Pair ◽  
X Ray ◽  
Sulfur Containing

scholarly journals Potentiometric Surfactant Sensor Based on 1,3-Dihexadecyl-1H-benzo[d]imidazol-3-ium for Anionic Surfactants in Detergents and Household Care Products

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3627
Author(s):  
Nikola Sakač ◽  
Dubravka Madunić-Čačić ◽  
Dean Marković ◽  
Lucija Hok ◽  
Robert Vianello ◽  
...  
Keyword(s):  
Anionic Surfactants ◽  
Negative Impact ◽  
Ion Pair ◽  
Two Phase ◽  
Potentiometric Response ◽  
Titration Curves ◽  
Signal Change ◽  
Nernstian Slope ◽  
Good Agreement

A 1,3-dihexadecyl-1H-benzo[d]imidazol-3-ium-tetraphenylborate (DHBI-TPB) ion-pair implemented in DHBI-TPB surfactant sensor was used for the potentiometric quantification of anionic surfactants in detergents and commercial household care products. The DHBI-TPB ion-pair was characterized by FTIR spectroscopy and computational analysis which revealed a crucial contribution of the C–H∙∙∙π contacts for the optimal complex formation. The DHBI-TPB sensor potentiometric response showed excellent analytical properties and Nernstian slope for SDS (60.1 mV/decade) with LOD 3.2 × 10−7 M; and DBS (58.4 mV/decade) with LOD 6.1 × 10−7 M was obtained. The sensor possesses exceptional resistance to different organic and inorganic interferences in broad pH (2–10) range. DMIC used as a titrant demonstrated superior analytical performances for potentiometric titrations of SDS, compared to other tested cationic surfactants (DMIC > CTAB > CPC > Hyamine 1622). The combination of DHBI-TPB sensor and DMIC was successfully employed to perform titrations of the highly soluble alkane sulfonate homologues. Nonionic surfactants (increased concentration and number of EO groups) had a negative impact on anionic surfactant titration curves and a signal change. The DHBI-TPB sensor was effectively employed for the determination of technical grade anionic surfactants presenting the recoveries from 99.5 to 101.3%. The sensor was applied on twelve powered samples as well as liquid-gel and handwashing home care detergents containing anionic surfactants. The obtained results showed good agreement compared to the outcomes measured by ISE surfactant sensor and a two-phase titration method. The developed DHBI-TPB surfactant sensor could be used for quality control in industry and has great potential in environmental monitoring.

A transparent membrane filter for the solid-phase spectrophotometric determination of trace cationic surfactant in water

The Analyst ◽  
1999 ◽  
Vol 124 (10) ◽  
pp. 1489-1492 ◽  
Author(s):  
S. Taguchi ◽  
K. Morisaku ◽  
Y. Sengoku ◽  
I. Kasahara
Keyword(s):  
Cationic Surfactant ◽  
Spectrophotometric Determination ◽  
Solid Phase ◽  
Membrane Filter

scholarly journals Capillary isotahophoretic determination of phosphate after enrichment on membrane filter as ion pair of molybdophosphate with bis[2-(5-chloro-2-pyridylazo)-5-diethylaminophenolato]cobalt(III).

1989 ◽  
Vol 5 (2) ◽  
pp. 219-220 ◽  
Author(s):  
Mitsuhiko TACA ◽  
Masahiko KAN ◽  
Fumio KOMATSU ◽  
Shunitz TANAKA ◽  
Hitoshi YOSHIDA
Keyword(s):  
Membrane Filter ◽  
Ion Pair

Metallkomplexe mit funktionalisierten Schwefelliganden, V Ruthenium(II)-Alkyl- und -Arylthiosulfinato-Komplexe. Kristallstrukturanalyse von CpRu(PPh3)(CO)[S-S(O)-CH2-C6H5] / Metal Complexes of Functionalized Sulfur Containing Ligands, V Ruthenium(II)-Alkyl-and -Arylthiosulfinato Complexes. X-Ray Structure Determination of CpRu(PPh3)(CO)[S-S(O)-CH2-C6H5]

1993 ◽  
Vol 48 (5) ◽  
pp. 627-635 ◽  
Author(s):  
Wolfgang Weigand ◽  
Gabriele Bosl ◽  
Christian Robl ◽  
Jürgen Kroner
Keyword(s):  
Bond Length ◽  
Structure Determination ◽  
Spectroscopic Data ◽  
Structural Determination ◽  
Chiral Complexes ◽  
X Ray ◽  
Extended Hückel Calculations ◽  
Sulfur Containing ◽  
Sulfur Bond

Compounds of the type CpRu(PPh3)(L)(SH) [L = PPh3 (2), CO (4)] react with N-alkyl and -arylsulfinyl phthalimides 3a-f to give the chiral complexes CpRu(PPh3)(L)[S-S(O)-R] (L = PPh3, 5a: R = C4H9,5b: R = C12H25,5d: R = C18H37,5e: R = Tol; L = CO, 6a: R = C4H9,6b: R = C12H25,6c: R = C16H33,6d: R = C18H37,6f: R = CH2Ph). With 6a-c diastereoselectivities of 5:2, with 6d 5:1, and with 6f 10:3, respectively, are observed. The compounds 5,6 are characterized by their spectroscopic data; the X-ray structural determination of u-6f shows a sulfur-sulfur bond length of 208,6 (3) pm, the dihedral angle Ru-S(1)-S(2)-C(25) is 170,8°. Extended Hückel calculations give information about the rotational barrier around the S-S(O) axis.

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