DOI: 10.1016/j.watres.2017.11.011
Scopus记录号: 2-s2.0-85033567297
论文题名: Analysis of microplastics in water by micro-Raman spectroscopy: Release of plastic particles from different packaging into mineral water
作者: Schymanski D. ; Goldbeck C. ; Humpf H.-U. ; Fürst P.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 129 起始页码: 154
结束页码: 162
语种: 英语
英文关键词: Beverages
; Bottled water
; Micro-Raman spectroscopy
; Microplastic
; Mineral water
Scopus关键词: Beverages
; Fourier transform infrared spectroscopy
; Glass
; Particle size
; Plastic bottles
; Polyethylene terephthalates
; Polypropylenes
; Potable water
; Raman spectroscopy
; Anthropogenic contaminants
; Bottled water
; Micro Raman Spectroscopy
; Micrometer ranges
; Microplastic
; Microplastic particles
; Mineral water
; Statistically significant difference
; Glass bottles
; carbon dioxide
; drinking water
; microplastic
; mineral water
; plastic
; polyester
; polyethylene
; polyethylene terephthalate
; polyolefin
; polypropylene
; unclassified drug
; drinking water
; mineral water
; plastic
; polyethylene
; polypropylene
; analytical method
; anthropogenic source
; beverage
; drinking water
; lubricant
; particle size
; plastic
; Raman spectroscopy
; analytic method
; Article
; data base
; Germany
; human
; particle size
; priority journal
; Raman spectrometry
; analysis
; environmental monitoring
; infrared spectroscopy
; Raman spectrometry
; sea
; water pollutant
; Germany
; Drinking Water
; Environmental Monitoring
; Germany
; Mineral Waters
; Oceans and Seas
; Plastics
; Polyethylene
; Polypropylenes
; Spectroscopy, Fourier Transform Infrared
; Spectrum Analysis, Raman
; Water Pollutants, Chemical
英文摘要: Microplastics are anthropogenic contaminants which have been found in oceans, lakes and rivers. Investigations focusing on drinking water are rare and studies have mainly been using micro-Fourier Transform Infrared Spectroscopy (μ-FT-IR). A major limitation of this technique is its inability to detect particles smaller than 20 μm. However, micro-Raman spectroscopy is capable of detecting even smaller particle sizes. Therefore, we show that this technique, which was used in this study, is particularly useful in detecting microplastics in drinking water where particle sizes are in the low micrometer range. In our study, we compared the results from drinking water distributed in plastic bottles, glass bottles and beverage cartons. We tested the microplastic content of water from 22 different returnable and single-use plastic bottles, 3 beverage cartons and 9 glass bottles obtained from grocery stores in Germany. Small (–50-500 μm) and very small (1–50 μm) microplastic fragments were found in every type of water. Interestingly, almost 80% of all microplastic particles found had a particle size between 5 and 20 μm and were therefore not detectable by the analytical techniques used in previous studies. The average microplastics content was 118 ± 88 particles/l in returnable, but only 14 ± 14 particles/l in single-use plastic bottles. The microplastics content in the beverage cartons was only 11 ± 8 particles/l. Contrary to our assumptions we found high amounts of plastic particles in some of the glass bottled waters (range 0–253 particles/l, mean 50 ± 52 particles/l). A statistically significant difference from the blank value (14 ± 13) to the investigated packaging types could only be shown comparing to the returnable bottles (p < 0.05). Most of the particles in water from returnable plastic bottles were identified as consisting of polyester (primary polyethylene terephthalate PET, 84%) and polypropylene (PP; 7%). This is not surprising since the bottles are made of PET and the caps are made of PP. In water from single-use plastic bottles only a few micro-PET-particles have been found. In the water from beverage cartons and also from glass bottles, microplastic particles other than PET were found, for example polyethylene or polyolefins. This can be explained by the fact that beverage cartons are coated with polyethylene foils and caps are treated with lubricants. Therefore, these findings indicate that the packaging itself may release microparticles. The main fraction of the microplastic particles identified are of very small size with dimensions less than 20 μm, which is not detectable with the μ-FT-IR technique used in previous studies. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113120
Appears in Collections: 气候减缓与适应
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作者单位: Chemical and Veterinary Analytical Institute Münsterland-Emscher-Lippe (CVUA-MEL), Joseph-König-Straße 40, Münster, 48147, Germany; Institute of Food Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstr. 45, Münster, 48149, Germany
Recommended Citation:
Schymanski D.,Goldbeck C.,Humpf H.-U.,et al. Analysis of microplastics in water by micro-Raman spectroscopy: Release of plastic particles from different packaging into mineral water[J]. Water Research,2018-01-01,129