Polarographic Behavior of Some Alkyl Phthalate Esters

Whitnack, Gerald C.; Reinhart, Joan; Gantz, E. St. Clair

doi:10.1021/ac60099a008

Cited by 14 publications

(8 citation statements)

References 10 publications

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“…It has been already reported that the diffusion currents are directly proportional to the carboxylate content of the molecule. 21 So this study confirms that the newly developed method is only suitable for water soluble phthalate determination in aqueous medium.…”

Section: Effect Of Deposition Timesupporting

confidence: 70%

“…Two well defined reduction peaks are obtained for phthalate in a non-buffered system using DPP where usually the first signal has been selected for quantification of phthalates. 21 According to another report 18 DBP gave two polarographic signals at À1.52 V and À1.83 V in the presence of 0.2 M tetramethylammonium iodide. We also observed two peak potentials of DBP at À1.68 V and À1.88 V in aqueous (5% methanol) medium containing 0.1 mol L À1 TBAB at pH, 5.0.…”

Section: Resultsmentioning

confidence: 92%

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Fast voltammetric assay of water soluble phthalates in bottled and coolers water

et al. 2010

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Detection of phthalic acid and phthalates esters is of growing interest due to their significant use and potential toxicity. A fast, simple and highly sensitive Square Wave Voltammetric (SWV) method developed for determination of total water soluble phthalates using a glassy carbon electrode (GCE) is demonstrated using di-n-butyl phthalate (95%) (DBP) as a test example. The study showed that 100 mmol L À1 aqueous solution of DBP gives the best response with 0.05 mol L À1 tetrabutylammonium bromide (TBAB), at stirring rate of 1400 rpm, deposition time, 20 s and pH 4.0 AE 0.1. The optimum frequency and scan rate was 100 Hz and 0.9 V s À1 respectively. Voltammetric response was linear over 3 ranges, 70-110 mmol L À1 , 20-60 mmol L À1 and 2-10 mmol L À1 with regression coefficient of 0.9873, 0.9978 and 0.9935 respectively and limit of detection (LOD), 0.47 mmol L À1 for total water soluble phthalates in aqueous medium. The method was successfully applied to the determination of total phthalates in water samples taken from sources of water stored in PVC coolers and plastic bottles.

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Section: Effect Of Deposition Timesupporting

confidence: 70%

Section: Resultsmentioning

confidence: 92%

Fast voltammetric assay of water soluble phthalates in bottled and coolers water

et al. 2010

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“…Chemical methods for the determination of traces of oxygen in sodium (10, 15) have been applied with varying success (2,6,12). Among the available physical methods, the plugging indicator (5) relies on the formation of a saturated solution of the oxide in the metal at a known temperature.…”

Section: Resultsmentioning

confidence: 99%

Polarographic Determination of Styrene Monomer in Polyester Resins

Ayres¹,

Whitnack²

1960

Anal. Chem.

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“…Especially for phthalates which are usually difficult to reduce mercury electrodes are unsurpassable as demonstrated in following paragraphs. The polarographic reduction of DEP at the dropping mercury electrode (DME) was investigated by Whitnack et al [131]. This reduction occurs in two steps.…”

Section: Polarographic Methodsmentioning

confidence: 99%

Methods for the Determination of Endocrine-Disrupting Phthalate Esters

Qureshi

Yusoff

Wirzal

et al. 2015

Critical Reviews in Analytical Chemistry

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Phthalates are endocrine disruptors frequently occurring in the general and industrial environment and in many industrial products. Moreover, they are also suspected of being carcinogenic, teratogenic, and mutagenic, and they show diverse toxicity profiles depending on their structures. The European Union and the United States Environmental Protection Agency (US EPA) have included many phthalates in the list of priority substances with potential endocrine-disrupting action. They are: dimethyl phthalate (DMP), diethyl phthalate (DEP), dibutyl phthalate (DBP), butylbenzyl phthalate (BBP), diethylhexyl phthalate (DEHP), di-iso-nonyl phthalate (DINP), di-iso-decyl phthalate (DIDP), di-n-decyl phthalate (DnDP), and dioctyl phthalate (DOP). There is an ever-increasing demand for new analytical methods suitable for monitoring different phthalates in various environmental, biological, and other matrices. Separation and spectrometric methods are most frequently used. However, modern electroanalytical methods can also play a useful role in this field because of their high sensitivity, reasonable selectivity, easy automation, and miniaturization, and especially low investment and running costs, which makes them suitable for large-scale monitoring. Therefore, this review outlines possibilities and limitations of various analytical methods for determination of endocrine-disruptor phthalate esters in various matrices, including somewhat neglected electroanalytical methods.

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Polarographic Behavior of Some Alkyl Phthalate Esters

Cited by 14 publications

References 10 publications

Fast voltammetric assay of water soluble phthalates in bottled and coolers water

Fast voltammetric assay of water soluble phthalates in bottled and coolers water

Polarographic Determination of Styrene Monomer in Polyester Resins

Methods for the Determination of Endocrine-Disrupting Phthalate Esters

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