A Novel Strategy for the Detection and Quantification of Nanoplastics by Single Particle Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
A method for the detection and quantification of nanoplastics (NPTs) at environmentally relevant concentrations was developed. It is based on conjugating nanoplastics with functionalized metal (Au)-containing nanoparticles (NPs), thus making them detectable by highly sensitive inductively coupled pl...
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| Veröffentlicht in: | Analytical chemistry (Washington) 2020-09, Vol.92 (17), p.11664-11672 |
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| creator | Jiménez-Lamana, Javier Marigliano, Lucile Allouche, Joachim Grassl, Bruno Szpunar, Joanna Reynaud, Stéphanie |
| description | A method for the detection and quantification of nanoplastics (NPTs) at environmentally relevant concentrations was developed. It is based on conjugating nanoplastics with functionalized metal (Au)-containing nanoparticles (NPs), thus making them detectable by highly sensitive inductively coupled plasma mass spectrometry (ICP-MS) operated in single particle (SP) mode. The selectivity of the method was achieved by the coupling of negatively charged carboxylate groups present at the surface of nanoplastics with a positively charged gelatin attached to the custom-synthesized AuNPs. The adsorbed Au produced a SP-ICP-MS signal allowing the counting of individual nanoplastic particles, and hence their accurate quantification ( |
| doi_str_mv | 10.1021/acs.analchem.0c01536 |
| format | Article |
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It is based on conjugating nanoplastics with functionalized metal (Au)-containing nanoparticles (NPs), thus making them detectable by highly sensitive inductively coupled plasma mass spectrometry (ICP-MS) operated in single particle (SP) mode. The selectivity of the method was achieved by the coupling of negatively charged carboxylate groups present at the surface of nanoplastics with a positively charged gelatin attached to the custom-synthesized AuNPs. The adsorbed Au produced a SP-ICP-MS signal allowing the counting of individual nanoplastic particles, and hence their accurate quantification (<5% error). Polystyrene (PS) particle models with controlled surface functionalization mimicking the nanoplastics formed during natural degradation of plastic debris were used for the method development. The nanoplastic number concentration quantification limit was calculated at 8.4 × 105 NPTs L–1 and the calibration graph was linear up to 3.5 × 108 NPTs L–1. The method was applied to the analysis of nanoplastics of up to 1 μm in drinking, tap, and river water. The minimum detectable and quantifiable size depended on the degree of functionalization and the surface available for labeling. For a fully functionalized nanoplastic, the lower size detectable by this strategy is reported as 135 nm. In this study, authors use the recommendation for the definition of nanoplastics as plastic particles with sizes ranging between 1 nm and 1 μm, although it has not been accepted by a dedicated organization.</description><identifier>ISSN: 0003-2700</identifier><identifier>EISSN: 1520-6882</identifier><identifier>DOI: 10.1021/acs.analchem.0c01536</identifier><language>eng</language><publisher>Washington: American Chemical Society</publisher><subject>Analytical chemistry ; Calibration ; Chemical Sciences ; Chemistry ; Control surfaces ; Drinking water ; Emission spectroscopy ; Gelatin ; Gold ; Inductively coupled plasma mass spectrometry ; Mass spectrometry ; Mass spectroscopy ; Material chemistry ; Mimicry ; Nanoparticles ; or physical chemistry ; Plastic debris ; Polymers ; Polystyrene ; Polystyrene resins ; Rivers ; Scientific imaging ; Selectivity ; Theoretical and ; Water analysis</subject><ispartof>Analytical chemistry (Washington), 2020-09, Vol.92 (17), p.11664-11672</ispartof><rights>Copyright American Chemical Society Sep 1, 2020</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a433t-89876cd8b759b332e8514b4abd6812f51088fb7666667d637854b8f20da049a23</citedby><cites>FETCH-LOGICAL-a433t-89876cd8b759b332e8514b4abd6812f51088fb7666667d637854b8f20da049a23</cites><orcidid>0000-0002-1554-1411 ; 0000-0001-9048-0842 ; 0000-0001-6467-6534 ; 0000-0002-5644-4933 ; 0000-0002-0846-8009</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/acs.analchem.0c01536$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/acs.analchem.0c01536$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>230,314,776,780,881,2752,27053,27901,27902,56713,56763</link.rule.ids><backlink>$$Uhttps://univ-pau.hal.science/hal-02977866$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Jiménez-Lamana, Javier</creatorcontrib><creatorcontrib>Marigliano, Lucile</creatorcontrib><creatorcontrib>Allouche, Joachim</creatorcontrib><creatorcontrib>Grassl, Bruno</creatorcontrib><creatorcontrib>Szpunar, Joanna</creatorcontrib><creatorcontrib>Reynaud, Stéphanie</creatorcontrib><title>A Novel Strategy for the Detection and Quantification of Nanoplastics by Single Particle Inductively Coupled Plasma Mass Spectrometry (ICP-MS)</title><title>Analytical chemistry (Washington)</title><addtitle>Anal. Chem</addtitle><description>A method for the detection and quantification of nanoplastics (NPTs) at environmentally relevant concentrations was developed. It is based on conjugating nanoplastics with functionalized metal (Au)-containing nanoparticles (NPs), thus making them detectable by highly sensitive inductively coupled plasma mass spectrometry (ICP-MS) operated in single particle (SP) mode. The selectivity of the method was achieved by the coupling of negatively charged carboxylate groups present at the surface of nanoplastics with a positively charged gelatin attached to the custom-synthesized AuNPs. The adsorbed Au produced a SP-ICP-MS signal allowing the counting of individual nanoplastic particles, and hence their accurate quantification (<5% error). Polystyrene (PS) particle models with controlled surface functionalization mimicking the nanoplastics formed during natural degradation of plastic debris were used for the method development. The nanoplastic number concentration quantification limit was calculated at 8.4 × 105 NPTs L–1 and the calibration graph was linear up to 3.5 × 108 NPTs L–1. The method was applied to the analysis of nanoplastics of up to 1 μm in drinking, tap, and river water. The minimum detectable and quantifiable size depended on the degree of functionalization and the surface available for labeling. For a fully functionalized nanoplastic, the lower size detectable by this strategy is reported as 135 nm. 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Chem</addtitle><date>2020-09-01</date><risdate>2020</risdate><volume>92</volume><issue>17</issue><spage>11664</spage><epage>11672</epage><pages>11664-11672</pages><issn>0003-2700</issn><eissn>1520-6882</eissn><abstract>A method for the detection and quantification of nanoplastics (NPTs) at environmentally relevant concentrations was developed. It is based on conjugating nanoplastics with functionalized metal (Au)-containing nanoparticles (NPs), thus making them detectable by highly sensitive inductively coupled plasma mass spectrometry (ICP-MS) operated in single particle (SP) mode. The selectivity of the method was achieved by the coupling of negatively charged carboxylate groups present at the surface of nanoplastics with a positively charged gelatin attached to the custom-synthesized AuNPs. The adsorbed Au produced a SP-ICP-MS signal allowing the counting of individual nanoplastic particles, and hence their accurate quantification (<5% error). Polystyrene (PS) particle models with controlled surface functionalization mimicking the nanoplastics formed during natural degradation of plastic debris were used for the method development. The nanoplastic number concentration quantification limit was calculated at 8.4 × 105 NPTs L–1 and the calibration graph was linear up to 3.5 × 108 NPTs L–1. The method was applied to the analysis of nanoplastics of up to 1 μm in drinking, tap, and river water. The minimum detectable and quantifiable size depended on the degree of functionalization and the surface available for labeling. For a fully functionalized nanoplastic, the lower size detectable by this strategy is reported as 135 nm. 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| source | American Chemical Society Journals |
| subjects | Analytical chemistry Calibration Chemical Sciences Chemistry Control surfaces Drinking water Emission spectroscopy Gelatin Gold Inductively coupled plasma mass spectrometry Mass spectrometry Mass spectroscopy Material chemistry Mimicry Nanoparticles or physical chemistry Plastic debris Polymers Polystyrene Polystyrene resins Rivers Scientific imaging Selectivity Theoretical and Water analysis |
| title | A Novel Strategy for the Detection and Quantification of Nanoplastics by Single Particle Inductively Coupled Plasma Mass Spectrometry (ICP-MS) |
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