A spectrophotometric flow procedure for the determination of cationic surfactants in natural waters using a solenoid micro-pump for fluid propulsion

Lavorante, André F.; Pires, Cherrine K.; Morales‐Rubio, Ángel; Guárdia, Miguel de la; Reis, Boaventura F.

doi:10.1080/03067310500489635

Cited by 15 publications

(3 citation statements)

References 34 publications

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“…These methods use toxic organic solvents. Several methods for the spectrophotometric determination of CS without liquid-liquid extraction have also been reported [12][13][14][15][16][17][18]. Kamaya et al [12] proposed a spectrophotometric method for the determination of CS.…”

Section: Introductionmentioning

confidence: 99%

“…The effect of CS on the absorption spectra of the complex formed by the molybdenum(VI) and bromopyrogallol red was used to the spectrophotometric determination of CS [17]. Lavorante et al [18] proposed a spectrophotometric method for the determination of CS based on a ternary complex formation between Chrom Azurol S, the Fe(III) ion, and the CS. It is evident that the development of simple methods for sensitive determination of CSs is still desirable.…”

Section: Introductionmentioning

confidence: 99%

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Spectrophotometric Determination of Cationic Surfactants Based on Their Effect on the Complexes of Chrome Azurol S with Be²⁺ and Al³⁺ Cations

Afkhami¹,

Nematollahi²,

Madrakian³

et al. 2011

CLEAN Soil Air Water

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Simple, rapid, and sensitive spectrophotometric methods have been proposed for the determination of cationic surfactants (CS) as cetyltrimethylammonium bromide (CTAB), dodecyltrimethylammonium (DTAB), and cetylpyridinium bromide (CPB). The methods are based on the effects of CSs on the complexes of Al 3þ and Be 2þ withChrome Azurol S (CAS). The optimum reaction conditions such as CAS concentration, metal ion concentration, and pH have been studied and found to be 2.0 Â 10Be 2þ and pH 5.4. The analytical characteristics of the methods such as limit of detections, limit of quantifications, and linear ranges have been obtained. CTAB, CPB, and DTAB could be determined by the Al-CAS complex in the ranges of 0.50-40.00, 0.20-10.00, and 0.40-10.00 mmol L À1 , and for the Be-CAS complex in the ranges of 0.08-5.00, 0.08-3.00, and 0.20-6.00 mmol L À1 , respectively. The limit of the detections of the method for the determination of CTAB, CPB, and DTAB for the Be-CAS complex has been found as 0.025, 0.024, and 0.061 mmol L À1 , respectively. The interfering effect of some anions and cations was also tested. The method was applied to the determination of CS CTAB in conditioner shampoo and water samples.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spectrophotometric Determination of Cationic Surfactants Based on Their Effect on the Complexes of Chrome Azurol S with Be²⁺ and Al³⁺ Cations

Afkhami¹,

Nematollahi²,

Madrakian³

et al. 2011

CLEAN Soil Air Water

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“…The present procedure showed a lower detection limit than the reported spectrophotometric [21], ion-chromatographic [22], and HPLC [19] methods. Advantageously, the analytical range of the present approach is wider than the flow injection [11,13,23], the spectrophotometric [21,24], and the chromatographic [19] methods. This confirmed that the present method is alternative and convenient for the analytical determination of CTAB.…”

Section: Comparison Of the Obtained Data To Other Methodsmentioning

confidence: 98%

Flow Injection Sensing Strategy for Determining Cationic Surfactants in Commodity and Water Samples

et al. 2022

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The formation of stable binary water-soluble sub-micellar aggregates of cetyltrimethylammonium bromide-copper-pyrocatechol violet complex (CTAB-Cu-PCV) diminishes the stability and absorbance of the Cu-PCV complex. A new flow injection spectrophotometric sensing strategy used for the determination of CTAB in commodity personal care antiseptics and water samples has been established relying on the above-mentioned concept. Based on the reduction of the absorption of the Cu-PCV solution by the injection of CTAB solution at pH 6.0 and 430 nm, a linear absorbance decrease was observed over the CTAB concentration range of 2.0 to 100.0 µg mL−1 (r = 0.987). The analysis method showed limits of detection (3.3 ơ) and quantification (10 ơ) of 0.08 and 0.27 µg mL−1, respectively. The precision (RSD) for five replicate determinations was 7.9 and 3.7% at 10 and 50 µg mL−1, respectively. The developed method was applied successfully to the determination of CTAB in personal care products, namely skin lotion and vaginal wash, in addition to water samples. The corresponding RSD (n = 5) values were ≤8.2%.

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The Concept of Multi‐Commutation in Flow Analysis

Feres

Zagatto

Santos

et al. 2008

Advances in Flow Analysis

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A spectrophotometric flow procedure for the determination of cationic surfactants in natural waters using a solenoid micro-pump for fluid propulsion

Cited by 15 publications

References 34 publications

Spectrophotometric Determination of Cationic Surfactants Based on Their Effect on the Complexes of Chrome Azurol S with Be²⁺ and Al³⁺ Cations

Spectrophotometric Determination of Cationic Surfactants Based on Their Effect on the Complexes of Chrome Azurol S with Be²⁺ and Al³⁺ Cations

Flow Injection Sensing Strategy for Determining Cationic Surfactants in Commodity and Water Samples

The Concept of Multi‐Commutation in Flow Analysis

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A spectrophotometric flow procedure for the determination of cationic surfactants in natural waters using a solenoid micro-pump for fluid propulsion

Cited by 15 publications

References 34 publications

Spectrophotometric Determination of Cationic Surfactants Based on Their Effect on the Complexes of Chrome Azurol S with Be2+ and Al3+ Cations

Spectrophotometric Determination of Cationic Surfactants Based on Their Effect on the Complexes of Chrome Azurol S with Be2+ and Al3+ Cations

Flow Injection Sensing Strategy for Determining Cationic Surfactants in Commodity and Water Samples

The Concept of Multi‐Commutation in Flow Analysis

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Spectrophotometric Determination of Cationic Surfactants Based on Their Effect on the Complexes of Chrome Azurol S with Be²⁺ and Al³⁺ Cations

Spectrophotometric Determination of Cationic Surfactants Based on Their Effect on the Complexes of Chrome Azurol S with Be²⁺ and Al³⁺ Cations