Evaluation of portable vibrational spectroscopy for identifying plasticizers in dairy tubing

Yakes, Betsy Jean; Moskowitz, Joshua; Crump, Eric; Ellsworth, Zachary; Carlos, Katherine; Begley, Timothy H.

doi:10.1080/19440049.2022.2025461

Cited by 7 publications

(9 citation statements)

References 26 publications

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“…This identification via portable Raman spectroscopy aims to detect the presence of any phthalate ester moiety containing plasticizer in PVC food contact materials. Previous work from our laboratory has compared on-instrument library spectral matching with chemometric modeling for this phthalate ester detection (i.e., phthalate or not phthalate), with the accuracy of the methodologies for phthalate ester detection performing comparably . It is also worth noting here that the 1064 nm portable instrument utilized in this work is able to perform on-instrument library spectral matching, while chemometric modeling must be performed off-instrument in a less portable manner.…”

Section: Results and Discussionmentioning

confidence: 99%

“…Recent years have also seen the miniaturization of analytical spectrometers, with a wide range of commercially available portable spectrometers. Our laboratory has previously evaluated various portable spectrophotometers for their ability to detect the phthalate ester in PVC food contact tubing . Specifically, six portable analytical devices were evaluated by our laboratory for their ability to detect the phthalate ester plasticizers in PVC food contact tubing.…”

Section: Introductionmentioning

confidence: 99%

“…Specifically, six portable analytical devices were evaluated by our laboratory for their ability to detect the phthalate ester plasticizers in PVC food contact tubing. From these six devices, the TruScan Raman device was found to provide accurate and reliable detection, utilizing both spectral library matching and on-instrument chemometrics . These portable spectroscopic methodologies are generally useful in the detection of analytes that are present in bulk concentrations as opposed to very low and trace levels (i.e., below 1%).…”

Section: Introductionmentioning

confidence: 99%

“…Our laboratory has previously evaluated various portable spectrophotometers for their ability to detect the phthalate ester in PVC food contact tubing. 24 Specifically, six portable analytical devices were evaluated by our laboratory for their ability to detect the phthalate ester plasticizers in PVC food contact tubing. From these six devices, the TruScan Raman device was found to provide accurate and reliable detection, utilizing both spectral library matching and on-instrument chemometrics.…”

Section: ■ Introductionmentioning

confidence: 99%

“…From these six devices, the TruScan Raman device was found to provide accurate and reliable detection, utilizing both spectral library matching and on-instrument chemometrics. 24 These portable spectroscopic methodologies are generally useful in the detection of analytes that are present in bulk concentrations as opposed to very low and trace levels (i.e., below 1%). Limitations of this previous work include difficulties in sample positioning on the portable Raman instrument probe cone and signal interference from background fluorescence emitting from plasticized samples, both of which may lead to low analytical signal-to-noise ratios (S/N).…”

Section: ■ Introductionmentioning

confidence: 99%

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Portable Raman Spectroscopy for Screening of Phthalate Plasticizers in Food Contact Production Line Tubing and Bottle Cap Gaskets

Moskowitz

Carlos

Ackerman

et al. 2022

ACS Food Sci. Technol.

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In this work, we evaluate two commercially available portable Raman spectrometers for their ability to accurately determine the presence of ortho-phthalate ester plasticizers, hereafter referred to as phthalates, in poly(vinyl chloride) (PVC) food contact production line tubing. Further, we aim to identify individual plasticizer compounds in the PVC tubing from a panel of multiple components with portable Raman spectroscopy. This is accomplished through library spectral matching of unknown tubing samples with on-instrument library Raman spectra. This library matching methodology functions via the comparison of Raman spectra between unknown food contact tubing samples and a panel of previously scanned, known tubing samples. In both known and unknown tubing, the samples are also analyzed via established gas chromatography-mass spectrometry (GC-MS) and direct analysis in real time-MS (DART-MS) methodologies to confirm the plasticizer identity and evaluate the accuracy of the Raman spectroscopic methods. In addition to food contact tubing, the developed methodology is applied to plasticizer analysis in bottle cap gaskets. Portable detection of phthalates in food contact materials is important, as it alleviates the need for high cost and timeconsuming laboratory-based testing while allowing for rapid, on-site detection of plasticizers. This work may provide information regarding the prevalence of various plasticizers currently used in food contact production line tubing and bottle cap gaskets. The results from the spectrometers investigated in this work show that the technologies hold potential as a valuable plasticizer screening tool for the food industry and regulators.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

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