Determining leaching of bisphenol A from plastic containers by solid-phase microextraction and gas chromatography–mass spectrometry

Chang, Chia-Min; Chou, Chi-Chi; Lee, Maw-Rong

doi:10.1016/j.aca.2005.03.051

Cited by 97 publications

(36 citation statements)

References 31 publications

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“…1 Moreover, BPA has been reported to leach from polycarbonate baby bottles, 2 reusable containers, 3 and drinking water tanks. 4 BPA has also been detected in plastic waste, 5 plasma stored in polycarbonate tubes, 6 and in aquatic environments. 7 High concentrations of BPA can also be present in wastewater from BPA production factories because BPA is only partially removed during the wastewater treatment, and the wastewater containing BPA is a source of contamination in aquatic environments.…”

Section: Introductionmentioning

confidence: 99%

TiO₂/Carbon Composites Prepared from Rice Husk and the Removal of Bisphenol A in Photocatalytic Liquid System

Kim¹,

Kwak²,

Kang³

2010

Bulletin of the Korean Chemical Society

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The improved photocatalytic performance of a carbon/TiO2 composite was studied for the Bisphenol A (BPA) decomposition. Titanium tetraisopropoxide (TTIP) and a rice husk from Korea were heterogeneously mixed as the titanium and carbon sources, respectively, for 3 h at room temperature, and then thermally treated at 600 o C for 1 h in H2 gas. The transmission electron microscopy (TEM) images revealed that the bulk carbon partially covered the TiO2 particles, and the amount that was covered increased with the addition of the rice husk. The acquired carbon/TiO2 composite exhibited an anatase structure and a novel peak at 2θ = 32 o , which was assigned to bulk carbon. The specific surface area was significantly enhanced to 123 ~ 164 m 2 /g in the carbon/TiO2 composite, compared to 32.43 m 2 /g for the pure TiO2. The X-ray photoelectron spectroscopy (XPS) results showed that the Ti-O bond was weaker in the carbon/TiO2 composite than in the pure TiO2, resulting in an easier electron transition from the Ti valence band to the conduction band. The carbon/TiO2 composite absorbed over the whole UV-visible range, whereas the absorption band in the pure TiO2 was only observed in the UV range. These results agreed well with an electrostatic force microscopy (EFM) study that showed that the electrons were rapidly transferred to the surface of the carbon/TiO2 composite compared to the pure TiO2. The photocatalytic performance of the BPA removal was optimized at a Ti:C ratio of 9.5:0.5, and this photocatalytic composite completely decomposed 10.0 ppm BPA after 210 min, whereas the pure TiO2 achieved no more than 50% decomposition under any conditions.

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Section: Introductionmentioning

confidence: 99%

TiO₂/Carbon Composites Prepared from Rice Husk and the Removal of Bisphenol A in Photocatalytic Liquid System

Kim¹,

Kwak²,

Kang³

2010

Bulletin of the Korean Chemical Society

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“…Although the distribution coefficient between DOM and water of BPA has been measured (K DOM = 860 l kg À1 ) (Hollrigl-Rosta et al, 2003), the effect of other environmental relevant factors such as pH and salinity on the bioavailability of BPA is not clear. A few studies on the determination of BPA by SPME were reported (Salafranca et al, 1999;Braun et al, 2003;Cai et al, 2004;Basheer et al, 2005;Chang et al, 2005), but there is no report on the effect of environmental relevant conditions on the availability studied with the nd-SPME technique.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the impacts of some environmentally relevant factors on the availability of bisphenol A with negligible-depletion SPME

Peng

Liu

et al. 2006

Chemosphere

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The effect of some environmentally relevant factors including salinity, pH, and humic acids on the availability of bisphenol A (BPA) was evaluated by using the negligible-depletion solid-phase microextraction (nd-SPME) biomimetic method. With the variation of salinity (0-500 mM NaCl) and pH (5.0-8.5) of aqueous solutions, the partition coefficients of BPA between the nd-SPME fiber and the aqueous solution varied in the range of log D = 3.55-3.86, which indicates that the salinity and pH can influence the availability of BPA. By using Acros humic acid as model dissolved organic matter (DOM), it was also demonstrated that the environmental factors such as salinity and pH could affect the partitioning of BPA between DOM and aqueous solutions. The determined partition coefficients of BPA between dissolved organic carbon (DOC) and aqueous solutions were in the range of log D DOC = 4.03-5.60 for Acros humic acid solutions with 1-50 mg l À1 DOC. The influence of salinity and pH on log D DOC was more significant at low concentration (0-5 mg l À1) of DOC.

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“…In addition, it is also used as a plasticizer in certain polyvinyl chloride and structural polymers [26]. Because of these ubiquitous uses, a significant chance exists of oral exposure to BPA by organisms [10,[27][28][29]. Despite a wide body of research that reports the deleterious bioactivity of the compound, the actual effect of BPA on the human body is still an area of significant debate.…”

Section: Introductionmentioning

confidence: 98%

Quantitative determination of Bisphenol A from human saliva using bulk derivatization and trap‐and‐elute liquid chromatography coupled to electrospray ionization mass spectrometry

Yang

Morgan

Nguyen

et al. 2011

Enviro Toxic and Chemistry

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Endocrine disruptors cause adverse health effects as a result of their ability to shift the hormonal balance that is essential to the body. Bisphenol A (BPA) is an endocrine disruptor that has garnered much attention because of its presence in many consumer materials, which generates a significant risk for exposure. A method is presented for rapid detection of oral exposure to BPA directly from human saliva. Saliva was chosen because it serves as a noninvasive sampling route to detect BPA exposure; however, it is one of many complex biological matrices that have traditionally posed problems in quantitative analysis. Such analyses usually require extensive sample preparation to reduce interferences contributed by the sample matrix. Three validated methods are presented here that feature a streamlined sample-preparation strategy (bulk derivatization) prior to accurate and sensitive analysis by trap-and-elute liquid chromatography coupled to electrospray ionization mass spectrometry. Validated methods include standard addition calibration with variable injection volumes and multiple injection loading, as well as with incorporation of an internal standard. Reported limits of detection reached as low as 49.0 pg/ml (2.9 pg loaded on-column; equivalent to parts per trillion in saliva) among the presented methods with good accuracy and precision throughout. A proof-of-concept study is demonstrated to show that the final validated method has potential application to specific studies for trace-level BPA detection from real samples.

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Determining leaching of bisphenol A from plastic containers by solid-phase microextraction and gas chromatography–mass spectrometry

Cited by 97 publications

References 31 publications

TiO₂/Carbon Composites Prepared from Rice Husk and the Removal of Bisphenol A in Photocatalytic Liquid System

TiO₂/Carbon Composites Prepared from Rice Husk and the Removal of Bisphenol A in Photocatalytic Liquid System

Evaluating the impacts of some environmentally relevant factors on the availability of bisphenol A with negligible-depletion SPME

Quantitative determination of Bisphenol A from human saliva using bulk derivatization and trap‐and‐elute liquid chromatography coupled to electrospray ionization mass spectrometry

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Determining leaching of bisphenol A from plastic containers by solid-phase microextraction and gas chromatography–mass spectrometry

Cited by 97 publications

References 31 publications

TiO2/Carbon Composites Prepared from Rice Husk and the Removal of Bisphenol A in Photocatalytic Liquid System

TiO2/Carbon Composites Prepared from Rice Husk and the Removal of Bisphenol A in Photocatalytic Liquid System

Evaluating the impacts of some environmentally relevant factors on the availability of bisphenol A with negligible-depletion SPME

Quantitative determination of Bisphenol A from human saliva using bulk derivatization and trap‐and‐elute liquid chromatography coupled to electrospray ionization mass spectrometry

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Product

Resources

About

TiO₂/Carbon Composites Prepared from Rice Husk and the Removal of Bisphenol A in Photocatalytic Liquid System

TiO₂/Carbon Composites Prepared from Rice Husk and the Removal of Bisphenol A in Photocatalytic Liquid System