Determination of alcohol sulfates and alcohol ethoxysulfates in wastewater samples by liquid chromatography tandem mass spectrometry

Fernández-Ramos, C.; Ballesteros, O.; Blanc, Rosario; Zafra-Gómez, A.; Vı́lchez, J.L.

doi:10.1016/j.microc.2012.06.007

Cited by 8 publications

(1 citation statement)

References 21 publications

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“…The nitrogen gas purge process is often combined with the LLE or SPE process and sample solvent volume is reduced to approximately 2 mL or less at around 40°C and atmospheric pressure (Michael et al, 1984;Weinberg and Glaze, 1997). There are a variety of processes available such as the argon gas purge (Ene et al, 2012) and the high temperature purge at 80°C (Fernández-Ramos et al, 2013). However, undesirable recovery loss is often caused depending on the nitrogen gas purging conditions, and this decreases the reliability of the measurement.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen Purge Condition for Simultaneous GC/MS Measurement of Chemicals

Kameya

Konuma

Kondo

et al. 2014

J. of Wat. ^|^ Envir. Tech.

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Environmental monitoring of chemicals is important for risk evaluation. As almost all contaminants exist in water environments at very low concentration, appropriate concentration procedures are required. A nitrogen purge process has been used to concentrate extract containing various trace semi-volatile organic chemicals by combination with a solid-phase extraction. However, recovery loss is often caused depending on the purging conditions, and it decreases the reliability of the measurement. In this study, 166 chemicals of various physical properties were prepared and their recovery ratios were investigated under each condition. The recovery ratios in nitrogen purge were not necessarily determined by their physical properties, or overly influenced by the nitrogen purge volumetric flow rate. In contrast, the control of the solvent volume, which changes with the progress of the nitrogen purge concentration, was important in addition to the alternation of the final solvent from hexane to acetone, because the concentration of chemicals in the solvent was one of the key factors determining the recovery ratios in the nitrogen purge process. The variation of the recovery ratio was acceptably small under appropriately controlled conditions.

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Section: Introductionmentioning

confidence: 99%

Nitrogen Purge Condition for Simultaneous GC/MS Measurement of Chemicals

Kameya

Konuma

Kondo

et al. 2014

J. of Wat. ^|^ Envir. Tech.

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Seasonal Variations in the Behavior of Alcohol Sulfates in Agricultural Soils: a Field Study

Fernández-Ramos

Ballesteros

Zafra-Gómez

et al. 2017

Water Air Soil Pollut

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Environmental monitoring of alcohol sulfates and alcohol ethoxysulfates in marine sediments

Fernández-Ramos

Ballesteros

Zafra-Gómez

et al. 2013

Environ Sci Pollut Res

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The study describes the environmental monitoring of anionic surfactants-alcohol sulfates (AS) and alcohol ethoxysulfates (AES)-in marine sediments. Concentration values were obtained after pressurised liquid extraction (PLE) and liquid chromatography-tandem mass spectrometry analysis (LC-MS/MS). Samples were collected from a range of wastewater discharge points along the coast of the provinces of Huelva, Málaga, Granada and Almería. Urban, agricultural and industrial wastewaters are discharged at the selected 38 sampling sites. Principal component analysis was carried out in order to evaluate the distribution and behaviour of these compounds in these coastal environments. Evaluation of the data revealed that the behaviour and sources of AS and AES in marine sediments are different, and that the distribution of AES depends on the length of the alkyl chain, while the number of ethoxylated units is not relevant. Additionally, the 38 sampling sites can be grouped into only two types of outfalls according to their AS distribution. The concentration of compounds in sediment samples ranged from 7.52 to 13.50 mg kg(-1) for AS, from 3.04 to 10.68 mg kg(-1) for AES-C12Ex and from 3.83 to 11.56 mg kg(-1) for AES-C14Ex.

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Determination of alcohol sulfates and alcohol ethoxysulfates in wastewater samples by liquid chromatography tandem mass spectrometry

Cited by 8 publications

References 21 publications

Nitrogen Purge Condition for Simultaneous GC/MS Measurement of Chemicals

Nitrogen Purge Condition for Simultaneous GC/MS Measurement of Chemicals

Seasonal Variations in the Behavior of Alcohol Sulfates in Agricultural Soils: a Field Study

Environmental monitoring of alcohol sulfates and alcohol ethoxysulfates in marine sediments

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