2021
DOI: 10.1002/rcm.9230
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Untargeted selected ion flow tube mass spectrometry headspace analysis: High‐throughput differentiation of virgin and recycled polyethylene pellets

Abstract: Recycled plastics are increasingly used for packaging of fast-moving consumer goods (FMCG). Compared with packaging made from virgin polymers, there is greater risk of taints entering products due to prior use of the polymers and incomplete cleaning. Increased quality assurance testing of polymer feedstock is required for recycled packaging. Selected ion flow tube mass spectrometry (SIFT-MS) analysis coupled with multivariate statistical data processing can provide highthroughput untargeted screening of recycl… Show more

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Cited by 8 publications
(6 citation statements)
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“…I NO is the raw output signal at m/ z = 30 + in the NO + scan, and + I O 2 is the raw output signal at m/z = 32 + in the O 2 + scan. 54 Figure 5 compares the inverse intensities of the reagent ions used to the total mass loss in a TGA experiment, both at β = 10 °C/min. Figure 5 reveals that, in general, the onset of mass loss and of reagent ion depletion correspond very well.…”
Section: ■ Results and Discussionmentioning
confidence: 99%
“…I NO is the raw output signal at m/ z = 30 + in the NO + scan, and + I O 2 is the raw output signal at m/z = 32 + in the O 2 + scan. 54 Figure 5 compares the inverse intensities of the reagent ions used to the total mass loss in a TGA experiment, both at β = 10 °C/min. Figure 5 reveals that, in general, the onset of mass loss and of reagent ion depletion correspond very well.…”
Section: ■ Results and Discussionmentioning
confidence: 99%
“…Although this article has focused on quantitative analysis using commercial instruments, qualitative analysis using untargeted (i.e., full scan) SIFT-MS analysis combined with multivariate statistical analysis is gaining in popularity with a desire to apply in long-term studies . Example applications include rapid classification of Moroccan Argan oils, Mediterranean olive oils, breath, , and recycled polymers . The present authors are not qualified to advise on statistical methodologies but would encourage those utilizing SIFT-MS as a “fingerprinting” tool (or VOC pattern analyzer) to ensure that input data of sufficient quality are acquired and used in the model.…”
Section: Discussionmentioning
confidence: 99%
“…56 Example applications include rapid classification of Moroccan Argan oils, 57 Mediterranean olive oils, 58 breath, 59,60 and recycled polymers. 12 The present authors are not qualified to advise on statistical methodologies but would encourage those utilizing SIFT-MS as a "fingerprinting" tool (or VOC pattern analyzer) to ensure that input data of sufficient quality are acquired and used in the model. Of particular importance: (1) reagent ions and their 18 O isotopologues should not be included, (2) samples should be well within the linear range (for matrix volatiles as well as target analytes), and (3) humidity should be kept constant.…”
Section: Discussionmentioning
confidence: 99%
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“…In the method development phase, 1 g samples of product were utilized (neat or diluted with 9 mL of deionized water and vortexed for approximately 30 s). A full-scan automated headspace-SIFT-MS analysis was conducted, as described previously [27].…”
Section: Sample Preparationmentioning
confidence: 99%