A novel approach for adapting the standard addition method to single particle-ICP-MS for the accurate determination of NP size and number concentration in complex matrices
This paper presents a novel approach, based on the standard addition method, for overcoming the matrix effects that often hamper the accurate characterization of nanoparticles (NPs) in complex samples via single particle inductively coupled plasma mass spectrometry (SP-ICP-MS). In this approach, cal...
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description | This paper presents a novel approach, based on the standard addition method, for overcoming the matrix effects that often hamper the accurate characterization of nanoparticles (NPs) in complex samples via single particle inductively coupled plasma mass spectrometry (SP-ICP-MS). In this approach, calibration of the particle size is performed by two different methods: (i) by spiking a suspension of NPs standards of known size containing the analyte, or (ii) by spiking the sample with ionic standards; either way, the measured sensitivity is used in combination with the transport efficiency (TE) for sizing the NPs. Moreover, such transport efficiency can be readily obtained from the data obtained via both calibration methods mentioned above, so that the particle number concentration can also be determined.
The addition of both ionic and NP standards can be performed on-line, by using a T-piece with two inlet lines of different dimensions. The smaller of the two is used for the standards, thus ensuring a constant and minimal sample dilution. As a result of the spiking of the samples, mixed histograms including the signal of the sample and that of the standards are obtained. However, the use of signal deconvolution approaches permits to extract the information, even in cases of signal populations overlapping.
For proofing the concept, characterization of a 50 nm AuNPs suspension prepared in three different media (i.e., deionized water, 5% ethanol, and 2.5% tetramethyl ammonium hydroxide-TMAH) was carried out. Accurate results were obtained in all cases, in spite of the matrix effects detected in some media. Overall, the approach proposed offers flexibility, so it can be adapted to different situations, but it might be specially indicated for samples for which the matrix is not fully known and/or dilution is not possible/recommended.
[Display omitted]
•Adaptation of the standard addition calibration method for SP-ICP-MS.•Flexible working methodology through online addition of standards via a T-piece.•Mathematical deconvolution permits differentiating the sample and standard signals.•Accurate sizing and counting of AuNPs dispersed in TMAH and ethanol is presented. |
doi_str_mv | 10.1016/j.aca.2022.339738 |
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The addition of both ionic and NP standards can be performed on-line, by using a T-piece with two inlet lines of different dimensions. The smaller of the two is used for the standards, thus ensuring a constant and minimal sample dilution. As a result of the spiking of the samples, mixed histograms including the signal of the sample and that of the standards are obtained. However, the use of signal deconvolution approaches permits to extract the information, even in cases of signal populations overlapping.
For proofing the concept, characterization of a 50 nm AuNPs suspension prepared in three different media (i.e., deionized water, 5% ethanol, and 2.5% tetramethyl ammonium hydroxide-TMAH) was carried out. Accurate results were obtained in all cases, in spite of the matrix effects detected in some media. Overall, the approach proposed offers flexibility, so it can be adapted to different situations, but it might be specially indicated for samples for which the matrix is not fully known and/or dilution is not possible/recommended.
[Display omitted]
•Adaptation of the standard addition calibration method for SP-ICP-MS.•Flexible working methodology through online addition of standards via a T-piece.•Mathematical deconvolution permits differentiating the sample and standard signals.•Accurate sizing and counting of AuNPs dispersed in TMAH and ethanol is presented.</description><identifier>ISSN: 0003-2670</identifier><identifier>EISSN: 1873-4324</identifier><identifier>DOI: 10.1016/j.aca.2022.339738</identifier><identifier>PMID: 35414390</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Calibration ; Gold - chemistry ; Mass Spectrometry - methods ; Matrix effects ; Metal Nanoparticles - chemistry ; Particle Size ; Single particle-ICP-MS ; Spectrum Analysis</subject><ispartof>Analytica chimica acta, 2022-05, Vol.1205, p.339738-339738, Article 339738</ispartof><rights>2022 The Authors</rights><rights>Copyright © 2022 The Authors. Published by Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c396t-e97115376ba0e9f6b68ba2a298610f684cade6177db64166fedfb06ed3002b593</citedby><cites>FETCH-LOGICAL-c396t-e97115376ba0e9f6b68ba2a298610f684cade6177db64166fedfb06ed3002b593</cites><orcidid>0000-0002-7450-8769 ; 0000-0002-7532-2720</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.aca.2022.339738$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35414390$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Aramendía, Maite</creatorcontrib><creatorcontrib>García-Mesa, Juan Carlos</creatorcontrib><creatorcontrib>Alonso, Elisa Vereda</creatorcontrib><creatorcontrib>Garde, Raúl</creatorcontrib><creatorcontrib>Bazo, Antonio</creatorcontrib><creatorcontrib>Resano, Javier</creatorcontrib><creatorcontrib>Resano, Martín</creatorcontrib><title>A novel approach for adapting the standard addition method to single particle-ICP-MS for the accurate determination of NP size and number concentration in complex matrices</title><title>Analytica chimica acta</title><addtitle>Anal Chim Acta</addtitle><description>This paper presents a novel approach, based on the standard addition method, for overcoming the matrix effects that often hamper the accurate characterization of nanoparticles (NPs) in complex samples via single particle inductively coupled plasma mass spectrometry (SP-ICP-MS). In this approach, calibration of the particle size is performed by two different methods: (i) by spiking a suspension of NPs standards of known size containing the analyte, or (ii) by spiking the sample with ionic standards; either way, the measured sensitivity is used in combination with the transport efficiency (TE) for sizing the NPs. Moreover, such transport efficiency can be readily obtained from the data obtained via both calibration methods mentioned above, so that the particle number concentration can also be determined.
The addition of both ionic and NP standards can be performed on-line, by using a T-piece with two inlet lines of different dimensions. The smaller of the two is used for the standards, thus ensuring a constant and minimal sample dilution. As a result of the spiking of the samples, mixed histograms including the signal of the sample and that of the standards are obtained. However, the use of signal deconvolution approaches permits to extract the information, even in cases of signal populations overlapping.
For proofing the concept, characterization of a 50 nm AuNPs suspension prepared in three different media (i.e., deionized water, 5% ethanol, and 2.5% tetramethyl ammonium hydroxide-TMAH) was carried out. Accurate results were obtained in all cases, in spite of the matrix effects detected in some media. Overall, the approach proposed offers flexibility, so it can be adapted to different situations, but it might be specially indicated for samples for which the matrix is not fully known and/or dilution is not possible/recommended.
[Display omitted]
•Adaptation of the standard addition calibration method for SP-ICP-MS.•Flexible working methodology through online addition of standards via a T-piece.•Mathematical deconvolution permits differentiating the sample and standard signals.•Accurate sizing and counting of AuNPs dispersed in TMAH and ethanol is presented.</description><subject>Calibration</subject><subject>Gold - chemistry</subject><subject>Mass Spectrometry - methods</subject><subject>Matrix effects</subject><subject>Metal Nanoparticles - chemistry</subject><subject>Particle Size</subject><subject>Single particle-ICP-MS</subject><subject>Spectrum Analysis</subject><issn>0003-2670</issn><issn>1873-4324</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kU9v1DAQxS0EotvCB-CCfOSSrR1nnVicqhV_KhWoBJytiT1hvUrsYDsV8JX4knibwpHTaEa_96R5j5AXnG054_LyuAUD25rV9VYI1YruEdnwrhVVI-rmMdkwxkRVy5adkfOUjmWtOWuekjOxa3gjFNuQ31fUhzscKcxzDGAOdAiRgoU5O_-N5gPSlMFbiLZcrcsueDphPgRLc6CpQCPSGWJ2ZsTqen9bffh873GSgjFLhIzUYsY4OQ_3-jDQj7dF-6sQ3lK_TD1GaoI36HNcGefLYZpH_EEnyNEZTM_IkwHGhM8f5gX5-vbNl_376ubTu-v91U1lhJK5QtVyvhOt7IGhGmQvux5qqFUnORtk1xiwKHnb2l42XMoB7dAziVaUfPqdEhfk1epbEvm-YMp6csngOILHsCRdy0YpJeuGFZSvqIkhpYiDnqObIP7UnOlTR_qoS0f61JFeOyqalw_2Sz-h_af4W0oBXq8AlifvHEadjMMSjnURTdY2uP_Y_wFCgaRI</recordid><startdate>20220501</startdate><enddate>20220501</enddate><creator>Aramendía, Maite</creator><creator>García-Mesa, Juan Carlos</creator><creator>Alonso, Elisa Vereda</creator><creator>Garde, Raúl</creator><creator>Bazo, Antonio</creator><creator>Resano, Javier</creator><creator>Resano, Martín</creator><general>Elsevier B.V</general><scope>6I.</scope><scope>AAFTH</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-7450-8769</orcidid><orcidid>https://orcid.org/0000-0002-7532-2720</orcidid></search><sort><creationdate>20220501</creationdate><title>A novel approach for adapting the standard addition method to single particle-ICP-MS for the accurate determination of NP size and number concentration in complex matrices</title><author>Aramendía, Maite ; García-Mesa, Juan Carlos ; Alonso, Elisa Vereda ; Garde, Raúl ; Bazo, Antonio ; Resano, Javier ; Resano, Martín</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c396t-e97115376ba0e9f6b68ba2a298610f684cade6177db64166fedfb06ed3002b593</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Calibration</topic><topic>Gold - chemistry</topic><topic>Mass Spectrometry - methods</topic><topic>Matrix effects</topic><topic>Metal Nanoparticles - chemistry</topic><topic>Particle Size</topic><topic>Single particle-ICP-MS</topic><topic>Spectrum Analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Aramendía, Maite</creatorcontrib><creatorcontrib>García-Mesa, Juan Carlos</creatorcontrib><creatorcontrib>Alonso, Elisa Vereda</creatorcontrib><creatorcontrib>Garde, Raúl</creatorcontrib><creatorcontrib>Bazo, Antonio</creatorcontrib><creatorcontrib>Resano, Javier</creatorcontrib><creatorcontrib>Resano, Martín</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Analytica chimica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Aramendía, Maite</au><au>García-Mesa, Juan Carlos</au><au>Alonso, Elisa Vereda</au><au>Garde, Raúl</au><au>Bazo, Antonio</au><au>Resano, Javier</au><au>Resano, Martín</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A novel approach for adapting the standard addition method to single particle-ICP-MS for the accurate determination of NP size and number concentration in complex matrices</atitle><jtitle>Analytica chimica acta</jtitle><addtitle>Anal Chim Acta</addtitle><date>2022-05-01</date><risdate>2022</risdate><volume>1205</volume><spage>339738</spage><epage>339738</epage><pages>339738-339738</pages><artnum>339738</artnum><issn>0003-2670</issn><eissn>1873-4324</eissn><abstract>This paper presents a novel approach, based on the standard addition method, for overcoming the matrix effects that often hamper the accurate characterization of nanoparticles (NPs) in complex samples via single particle inductively coupled plasma mass spectrometry (SP-ICP-MS). In this approach, calibration of the particle size is performed by two different methods: (i) by spiking a suspension of NPs standards of known size containing the analyte, or (ii) by spiking the sample with ionic standards; either way, the measured sensitivity is used in combination with the transport efficiency (TE) for sizing the NPs. Moreover, such transport efficiency can be readily obtained from the data obtained via both calibration methods mentioned above, so that the particle number concentration can also be determined.
The addition of both ionic and NP standards can be performed on-line, by using a T-piece with two inlet lines of different dimensions. The smaller of the two is used for the standards, thus ensuring a constant and minimal sample dilution. As a result of the spiking of the samples, mixed histograms including the signal of the sample and that of the standards are obtained. However, the use of signal deconvolution approaches permits to extract the information, even in cases of signal populations overlapping.
For proofing the concept, characterization of a 50 nm AuNPs suspension prepared in three different media (i.e., deionized water, 5% ethanol, and 2.5% tetramethyl ammonium hydroxide-TMAH) was carried out. Accurate results were obtained in all cases, in spite of the matrix effects detected in some media. Overall, the approach proposed offers flexibility, so it can be adapted to different situations, but it might be specially indicated for samples for which the matrix is not fully known and/or dilution is not possible/recommended.
[Display omitted]
•Adaptation of the standard addition calibration method for SP-ICP-MS.•Flexible working methodology through online addition of standards via a T-piece.•Mathematical deconvolution permits differentiating the sample and standard signals.•Accurate sizing and counting of AuNPs dispersed in TMAH and ethanol is presented.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>35414390</pmid><doi>10.1016/j.aca.2022.339738</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-7450-8769</orcidid><orcidid>https://orcid.org/0000-0002-7532-2720</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Calibration Gold - chemistry Mass Spectrometry - methods Matrix effects Metal Nanoparticles - chemistry Particle Size Single particle-ICP-MS Spectrum Analysis |
title | A novel approach for adapting the standard addition method to single particle-ICP-MS for the accurate determination of NP size and number concentration in complex matrices |
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