Rapid and Simple Determination of Phthalates in Plastic Toys by a Thermal Desorption-GC/MS Method

Yuzawa, Tetsuro; Watanabe, Chuichi; Freeman, Robert R.; Tsuge, Shin

doi:10.2116/analsci.25.1057

Cited by 22 publications

(14 citation statements)

References 4 publications

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“…The undoped urine sample showed peaks that corresponded to long-chain alkanes, fatty acids, and amides, all of which are commonly found in urine. 42 Notably, the urine sample also contained GC-MS peaks that corresponded to benzophenone, 43 commonly used in personal care products such as sunscreen 44 and lip balm, 45 phthalates, commonly found in plastics 46 and some food products, 47 and acetaminophen, commonly found in over-the-counter pain relievers. 48…”

Section: Urine Characterizationmentioning

confidence: 99%

Detection of bisphenol A and derivatives in human urineviacyclodextrin-promoted fluorescence modulation

et al. 2018

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Section: Urine Characterizationmentioning

confidence: 99%

Detection of bisphenol A and derivatives in human urineviacyclodextrin-promoted fluorescence modulation

et al. 2018

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“…Although the TD-GC/MS method has been suggested as the accurate quantification method for the analysis of semi-volatile compounds in polymeric materials, [13][14][15] it is difficult to obtain a calibration curve for a target compound with high volatility due to the loss of the target compound during sample preparation or waiting time before analysis.…”

Section: The Use Of Pvc Coated Sample Cupmentioning

confidence: 99%

“…For these reasons, direct thermal desorption (TD) of target compounds from polymeric matrices was suggested as a simple and safe tool for the analysis of hazardous chemicals in polymers. [13][14][15] For example, TD-GC/MS was nominated as the standard test method for the determination of low level, regulated phthalates in polyvinyl chloride (PVC) plastics. 16 Simple and fast quantification of phthalates in polymer samples has become possible without using any extraction solvent by applying TD-GC/MS as a standard method.…”

Section: Introductionmentioning

confidence: 99%

Rapid Quantification of N-Methyl-2-pyrrolidone in Polymer Matrices by Thermal Desorption-GC/MS

Kim

Moon

et al. 2017

ANAL. SCI.

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Analysis of a residual solvent in polymeric materials has become an important issue due to the increased regulations and standards for its use. N-Methyl-2-pyrrolidone (NMP) is a solvent widely used in many industries and restricted as one of the chemicals under EU REACH regulations due to its potential harmful effects. In this study, thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) is applied for the quantitative analysis of NMP with the use of a polymer-coated sample cup. By using the polymer-coated sample cup, the vaporization of NMP was prevented during waiting time before TD-GC/MS analysis. The calibration curve for the TD method showed good linearity (correlation coefficient, r = 0.9998) and precision values (below 5.3% RSD). NMP recovery rates in different polymer matrices (PS, PMMA and PVC) were in the range of 98.8 to 106.6% with RSD values below 5.0%. The quantification result (600 mg NMP/kg PVC) for the blind NMP carrying sample in a PVC matrix by TD-GC/MS was higher than that (532 mg NMP/kg PVC) by solvent extraction-GC/MS method.

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“…For real-time monitoring (RTM), an evolved gas analysis capillary tube is used to by-pass the GC column, allowing the gases released to be monitored directly by the MS detector [20,21]. This study aims at modifying this system that has been applied to evaluate different processes [22][23][24][25][26][27] and adapt it as a FT setup that can generate meaningful data within the shortest possible time frame.…”

Section: Introductionmentioning

confidence: 99%

Rapid Online Fischer–Tropsch Reaction Monitoring using a Modified Frontier Tandem Micro‐Reactor GC–MS System

Okonye

Jalama

Hosaka³

et al. 2019

Env Prog and Sustain Energy

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Conventional laboratory facilities used for Fischer–Tropsch (FT) catalyst evaluation usually consist of a reactor that is connected to an online gas chromatograph (GS). This arrangement is characterized by longer response times that make it difficult to acquire early reaction dynamics, which are crucial to the understanding of long‐term catalyst performance. This article describes how the modification of a Frontier Single micro‐Reactor, interfaced to a gas chromatograph–mass spectrometer (GC–MS) system, can facilitate rapid evaluation of catalysts for FT synthesis reaction. The study has been performed using an Ru/SBA‐15 catalyst prepared by reduction of RuCl3 using NaBH4 and deposition on a synthesized mesoporous SBA‐15 support and characterized using Brunauer–Emmett–Teller, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, temperature‐programmed reduction, and X‐ray diffraction techniques. The system was successfully modified to perform catalyst evaluation in batch and real‐time modes. Unlike conventional FT setups, which require extended reaction times to generate the Anderson–Schulz–Flory plot and the chain growth probability (α), the modified system in this study allows the determination of product distribution and alpha value in less than 30 min from the start of the reaction. © 2019 American Institute of Chemical Engineers Environ Prog, 38:e13079, 2019

show abstract

Rapid and Simple Determination of Phthalates in Plastic Toys by a Thermal Desorption-GC/MS Method

Cited by 22 publications

References 4 publications

Detection of bisphenol A and derivatives in human urineviacyclodextrin-promoted fluorescence modulation

Detection of bisphenol A and derivatives in human urineviacyclodextrin-promoted fluorescence modulation

Rapid Quantification of N-Methyl-2-pyrrolidone in Polymer Matrices by Thermal Desorption-GC/MS

Rapid Online Fischer–Tropsch Reaction Monitoring using a Modified Frontier Tandem Micro‐Reactor GC–MS System

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