Green assay of anionic surfactant via ion-association with methylene blue sorbed on polyurethane foam monolithic rod and using a smartphone
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Publication Details
Author list: Yeerum C., Wongwilai W., Grudpan K., Vongboot M.
Publisher: Elsevier
Publication year: 2018
Journal: Talanta: The International Journal of Pure and Applied Analytical Chemistry (0039-9140)
Volume number: 190
Start page: 85
End page: 88
Number of pages: 4
ISSN: 0039-9140
eISSN: 1873-3573
Languages: English-Great Britain (EN-GB)
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Abstract
Anionic surfactant as sodium dodecyl sulfate (SDS) can be assayed by using methylene blue (MB). The ion-association of SDS-MB can be extracted solventless but sorbed on a specified polyurethane foam (PUF) monolithic rod, prepared in the lab by mixing polyether with methylene diphenyl diisocyanate (MDI). The blue product (the ion-association of SDS-MB) on the rod can be followed by a smartphone (iPhone 6S). With a set of conditions, a single standard calibration can be applied. The proposed green analytical procedure can be employed for on-site assay. Application to real water samples was demonstrated. ฉ 2018 Elsevier B.V.
Keywords
Anionic surfactant, Green assay, Monolithic rod
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