Simple spectrophotometric determination of nonionic surfactants with a cationic azo dye

Maiko Nakata; Yoshiyuki Murata; Mikiro Tada; Yasuaki Shimoishi

doi:10.2116/bunsekikagaku.52.899

Simple spectrophotometric determination of nonionic surfactants with a cationic azo dye

Maiko Nakata, Yoshiyuki Murata, Mikiro Tada, Yasuaki Shimoishi

Research output: Contribution to journal › Article › peer-review

Abstract

A simple spectrophotometric method for the determination of polyoxyethylene nonionic surfactants, such as TritonX-100 with 1-(p-phenylphenacyl)-4-(4- aminonaphthylazo)-pyridinium bromide (PPAP), was developed. PPAP was synthesized by quarternizing 4-(4-aminonaphthylazo)-pyridine with p-phenylphenacyl bromide. Because PPAP was easily associated with nonionic surfactants to produce a blue ion associate in aqueous solution, the concentration of nonionic surfactants were determined by measuring the absorbance of ion associates at 612 nm. The apparent molar absorptivity of the TritonX-100 ion associate was 1.0 × 10³ dm³ mol^-1 cm^-1 at 612 nm. The calibration graph for TritonX-100 was linear over the range from 6.0 × 10^-5 to 8.0 × 10^-4 M, and the relative standard deviation for 5.6 × 10^-4 M of TritonX-100 was 2.0%. The proposed method was applied to the determination of nonionic surfactants in commercial domestic detergents.

Original language	English
Pages (from-to)	899-902
Number of pages	4
Journal	BUNSEKI KAGAKU
Volume	52
Issue number	10
DOIs	https://doi.org/10.2116/bunsekikagaku.52.899
Publication status	Published - Oct 2003

Keywords

1-(p-phenylphenacyl)-4-(4- aminonaphthylazo)-pyridinium bromide
Briji 35
Nonionic surfactant
Spectrophotometry
TritonX-100

ASJC Scopus subject areas

Analytical Chemistry

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title = "Simple spectrophotometric determination of nonionic surfactants with a cationic azo dye",

abstract = "A simple spectrophotometric method for the determination of polyoxyethylene nonionic surfactants, such as TritonX-100 with 1-(p-phenylphenacyl)-4-(4- aminonaphthylazo)-pyridinium bromide (PPAP), was developed. PPAP was synthesized by quarternizing 4-(4-aminonaphthylazo)-pyridine with p-phenylphenacyl bromide. Because PPAP was easily associated with nonionic surfactants to produce a blue ion associate in aqueous solution, the concentration of nonionic surfactants were determined by measuring the absorbance of ion associates at 612 nm. The apparent molar absorptivity of the TritonX-100 ion associate was 1.0 × 103 dm3 mol-1 cm-1 at 612 nm. The calibration graph for TritonX-100 was linear over the range from 6.0 × 10-5 to 8.0 × 10-4 M, and the relative standard deviation for 5.6 × 10-4 M of TritonX-100 was 2.0%. The proposed method was applied to the determination of nonionic surfactants in commercial domestic detergents.",

keywords = "1-(p-phenylphenacyl)-4-(4- aminonaphthylazo)-pyridinium bromide, Briji 35, Nonionic surfactant, Spectrophotometry, TritonX-100",

author = "Maiko Nakata and Yoshiyuki Murata and Mikiro Tada and Yasuaki Shimoishi",

year = "2003",

month = oct,

doi = "10.2116/bunsekikagaku.52.899",

language = "English",

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T1 - Simple spectrophotometric determination of nonionic surfactants with a cationic azo dye

AU - Nakata, Maiko

AU - Murata, Yoshiyuki

AU - Tada, Mikiro

AU - Shimoishi, Yasuaki

PY - 2003/10

Y1 - 2003/10

N2 - A simple spectrophotometric method for the determination of polyoxyethylene nonionic surfactants, such as TritonX-100 with 1-(p-phenylphenacyl)-4-(4- aminonaphthylazo)-pyridinium bromide (PPAP), was developed. PPAP was synthesized by quarternizing 4-(4-aminonaphthylazo)-pyridine with p-phenylphenacyl bromide. Because PPAP was easily associated with nonionic surfactants to produce a blue ion associate in aqueous solution, the concentration of nonionic surfactants were determined by measuring the absorbance of ion associates at 612 nm. The apparent molar absorptivity of the TritonX-100 ion associate was 1.0 × 103 dm3 mol-1 cm-1 at 612 nm. The calibration graph for TritonX-100 was linear over the range from 6.0 × 10-5 to 8.0 × 10-4 M, and the relative standard deviation for 5.6 × 10-4 M of TritonX-100 was 2.0%. The proposed method was applied to the determination of nonionic surfactants in commercial domestic detergents.

AB - A simple spectrophotometric method for the determination of polyoxyethylene nonionic surfactants, such as TritonX-100 with 1-(p-phenylphenacyl)-4-(4- aminonaphthylazo)-pyridinium bromide (PPAP), was developed. PPAP was synthesized by quarternizing 4-(4-aminonaphthylazo)-pyridine with p-phenylphenacyl bromide. Because PPAP was easily associated with nonionic surfactants to produce a blue ion associate in aqueous solution, the concentration of nonionic surfactants were determined by measuring the absorbance of ion associates at 612 nm. The apparent molar absorptivity of the TritonX-100 ion associate was 1.0 × 103 dm3 mol-1 cm-1 at 612 nm. The calibration graph for TritonX-100 was linear over the range from 6.0 × 10-5 to 8.0 × 10-4 M, and the relative standard deviation for 5.6 × 10-4 M of TritonX-100 was 2.0%. The proposed method was applied to the determination of nonionic surfactants in commercial domestic detergents.

KW - 1-(p-phenylphenacyl)-4-(4- aminonaphthylazo)-pyridinium bromide

KW - Briji 35

KW - Nonionic surfactant

KW - Spectrophotometry

KW - TritonX-100

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Simple spectrophotometric determination of nonionic surfactants with a cationic azo dye

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