Determination of the four major surfactant classes in cleaning products by reversed-phase liquid chromatography using serially connected UV and evaporative light-scattering detection

Escrig-Doménech, Aarón; Simó‐Alfonso, Ernesto Francisco; Ramis‐Ramos, Guillermo

doi:10.1016/j.aca.2016.05.022

Cited by 10 publications

(8 citation statements)

References 38 publications

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“…Due to the fact that wastewater may contain several thousands of compounds and are characterized by constantly shifting qualitative and quantitative composition, traditional instrumental methods are inadequate for a proper analysis. Despite the high diversity of the annually published methods dedicated to the determination of surface active compounds, it is difficult to indicate simple, cost-efficient and accurate methods which would be useful for routine monitoring of surface water and wastewater, especially with regard to non-ionic surfactants [15][16][17]. The chemical structure of oxyethylates hinders the development of methods appropriate for their trace analysis.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of surfactant removal efficiency in selected domestic wastewater treatment plants in Poland

Kruszelnicka

Ginter-Kramarczyk

Wyrwas

et al. 2019

J Environ Health Sci Engineer

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The aim of this study was to evaluate the work of a two types of household sewage treatment plant: wetland wastewater treatment plant (ORS type) and treatment plant of SBR type (SBR-K-6 type). Physicochemical analyses of selected pollution indices (BOD 5 , COD, total suspension, total phosphorus) and surfactants were carried out and compared with currently applicable values of such indexes according to the Regulation of the Minister of the Environment in Poland on the conditions to be met when discharging sewage into water or soil, and on the substances particularly harmful to the aquatic environment. The removal efficiency of organic compounds, expressed as COD and BOD 5 , reached the threshold of 90%, which is required in regulations. In contrast, the effects of removal of biogenic compounds were lowin case of total nitrogen the removal rate reached approx. 40% and the desired admissible concentration of 30 mg N/L was not achieved. The reduction efficiency of total suspended solids reached 57.0 and 59.6% for the ORS and SBR-K-6 type objects, respectively, and therefore the required threshold of minimum 90% was not reached. Anionic surfactants were removed by up to 98 and 88% in the ORS and SBR-K-6 type wastewater treatment plants, respectively. Lower removal efficiency was achieved in case on non-ionic surfactants, which reached 76% for the ORS type object and 56% for the SBR-K-6 type object. This article proven high wastewater treatment efficiency and lower than necessary concentrations in the effluent from domestic wastewater treatment plants may be achieved mainly by proper exploitation of the devices and appropriately selected vegetation.

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Section: Introductionmentioning

confidence: 99%

Evaluation of surfactant removal efficiency in selected domestic wastewater treatment plants in Poland

Kruszelnicka

Ginter-Kramarczyk

Wyrwas

et al. 2019

J Environ Health Sci Engineer

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“…This technique can detect any analyte that is less volatile than the mobile phase, regardless of the optical, electrochemical, or other properties. ELSD therefore has been widely used to detect compounds such as carbohydrates [ 21 , 22 ], glycosides [ 23 , 24 ], fatty acids [ 25 ], lipids [ 26 ], Chinese medicinal preparation [ 27 ], and surfactants [ 28 ] that possess no or only a weak UV chromophore. In view of the optical properties of BLs that have weak absorption even in the short wavelength range, BLs are indeed the suitable candidates for HPLC detection coupled with ELSD.…”

Section: Introductionmentioning

confidence: 99%

Determination of Propionylbrassinolide and Its Impurities by High-Performance Liquid Chromatography with Evaporative Light Scattering Detection

Cao

Zhang

Zhang³

et al. 2018

Molecules

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The discovery of brassinolide in 1979, a milestone in brassinosteroids research, has sparked great interest of brassinolide analogs (BLs) in agricultural applications. Among these BLs, propionylbrassinolide has captured considerable attention because it shows plant growth regulating activity with an excellent durability. Two impurities of propionylbrassinolide were isolated and purified by semi-preparative high-performance liquid chromatography (HPLC), and the chemical structures were confirmed. For simultaneous separation and determination of propionylbrassinolide and impurities, an efficient analytical method based on HPLC with evaporative light scattering detector (HPLC-ELSD) was developed. The optimized analysis was performed on a C18 reversed phase column (250 mm × 4.60 mm, 5 μm) with isocratic elution of acetonitrile and water (90:10, v/v) as the mobile phase. The drift tube temperature of the ELSD system was set to 50 °C and the auxiliary gas pressure was 150 kPa. The regression equations demonstrated a good linear relationship (R2 = 0.9989–0.9999) within the test ranges. The limits of detection (LODs) and quantification (LOQs) for propionylbrassinolide, impurity 1 and 2 were 1.3, 1.2, 1,3 and 4.3, 4.0, 4.2 mg/L, respectively. The fully validated HPLC-ELSD method was readily applied to quantify the active ingredient and impurities in propionylbrassinolide technical concentrate. Moreover, the optimized separation conditions with ELSD have been successfully transferred to mass spectrometry (MS) detector for LC-MS determination.

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“…Different detectors can be used for determination of ethoxylated surfactants. The most popular are the ultraviolet detector (UV) [15][16][17], fluorescence detector [10,18], flame ionization detector (FID) [19], evaporative lightscattering detector (ELSD) [20,21], corona-charged aerosol detector (CAD) [1], MS detector and MS/MS detector [6,11,18,[22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Determination of Dodecanol and Short‐Chained Ethoxylated Dodecanols by LC–MS/MS (with Electrospray Ionization) After Their Derivatization (with Phenyl Isocyanate)

Zembrzuska

2017

J Surfact & Detergents

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This report describes the application of LC–MS/MS for the separation of dodecanol (C12OH) and homogenous fatty alcohols ethoxylated (AE) containing a dodecyl moiety and 1–9 ethoxy groups. These ethoxylates and free alcohol were derivatized for LC–MS/MS analysis with phenyl isocyanate (PIC). The derivatives of analytes with PIC were separated using a C18 column. Gradient elution with a mixture of ethyl acetate and acetonitrile (5 mM) was employed. The described determination method is characterized by low detection limits (range from 0.005 µg L−1 for: C12OH, C12EO2–7 to 1 µg L−1 for C12EO1) and quantification limits (range from 0.01 µg L−1 for: C12EO5–7 to 2 µg L−1 for C12EO1). The developed and validated method was used in combination with liquid–liquid extraction (using ethyl acetate) in order to identify and quantitatively determine the C12OH and C12EO1–9 present in environmental samples collected from Warta river water in Poznan.Graphical abstract Electronic supplementary materialThe online version of this article (doi:10.1007/s11743-017-2015-z) contains supplementary material, which is available to authorized users.

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Determination of the four major surfactant classes in cleaning products by reversed-phase liquid chromatography using serially connected UV and evaporative light-scattering detection

Cited by 10 publications

References 38 publications

Evaluation of surfactant removal efficiency in selected domestic wastewater treatment plants in Poland

Evaluation of surfactant removal efficiency in selected domestic wastewater treatment plants in Poland

Determination of Propionylbrassinolide and Its Impurities by High-Performance Liquid Chromatography with Evaporative Light Scattering Detection

Determination of Dodecanol and Short‐Chained Ethoxylated Dodecanols by LC–MS/MS (with Electrospray Ionization) After Their Derivatization (with Phenyl Isocyanate)

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