Comparison of mass spectrometric techniques for generating molecular weight information on a class of ethoxylated oligomers.
Identifieur interne : 002699 ( PubMed/Corpus ); précédent : 002698; suivant : 002700Comparison of mass spectrometric techniques for generating molecular weight information on a class of ethoxylated oligomers.
Auteurs : D M Parees ; S D Hanton ; P A Clark ; D A WillcoxSource :
- Journal of the American Society for Mass Spectrometry [ 1044-0305 ] ; 1998.
Abstract
The results of fast atom bombardment (FAB), time-of-flight secondary ion mass spectrometry (ToF-SIMS), matrix-assisted laser desorption/ionization (MALD/I), electrospray ionization (ESI), and field desorption (FD) analyses of ethoxylated oligomers of 2,4,7,9-tetramethyl-5-decyne-4,7-diol (Surfynol(®) 104) were compared.Each of these desorption mass spectrometry (MS) techniques can produce spectra of unfragmented cationized oligomers. From the observed ion series we calculate average molecular weight information. We have compared the results of mass spectrometric analyses of a series of ethoxylated Surfynol surfactants. Our data indicate that FAB, ToF-SIMS, MALDI/I, and ESI produce similar results for the lower molecular weight species, but that as the average molecular weight increases FAB and SIMS produce slightly lower results than MALD/I and FD. This could be due to increased fragmentation. ESI produced a result similar to FAB and SIMS for the highest average molecular weight material. Further experiments compare the mass spectral results with gas chromatographic quantitative data. Although gas chromatography is not expected to accurately analyze the higher mass oligomers, we observe significant differences in intensities of the short-chain oligomers (especially the 0- and 1-mers) when compared to the desorption mass spectrometer results. These differences may reflect poor cationization efficiency for very short oligomer chains in the mass spectrometric analyses.
DOI: 10.1016/S1044-0305(97)00291-2
PubMed: 27518863
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From the observed ion series we calculate average molecular weight information. We have compared the results of mass spectrometric analyses of a series of ethoxylated Surfynol surfactants. Our data indicate that FAB, ToF-SIMS, MALDI/I, and ESI produce similar results for the lower molecular weight species, but that as the average molecular weight increases FAB and SIMS produce slightly lower results than MALD/I and FD. This could be due to increased fragmentation. ESI produced a result similar to FAB and SIMS for the highest average molecular weight material. Further experiments compare the mass spectral results with gas chromatographic quantitative data. Although gas chromatography is not expected to accurately analyze the higher mass oligomers, we observe significant differences in intensities of the short-chain oligomers (especially the 0- and 1-mers) when compared to the desorption mass spectrometer results. These differences may reflect poor cationization efficiency for very short oligomer chains in the mass spectrometric analyses. </div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">27518863</PMID><DateCompleted><Year>2016</Year><Month>08</Month><Day>20</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">1044-0305</ISSN><JournalIssue CitedMedium="Print"><Volume>9</Volume><Issue>4</Issue><PubDate><Year>1998</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Journal of the American Society for Mass Spectrometry</Title><ISOAbbreviation>J. Am. Soc. Mass Spectrom.</ISOAbbreviation></Journal><ArticleTitle>Comparison of mass spectrometric techniques for generating molecular weight information on a class of ethoxylated oligomers.</ArticleTitle><Pagination><MedlinePgn>282-91</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/S1044-0305(97)00291-2</ELocationID><Abstract><AbstractText>The results of fast atom bombardment (FAB), time-of-flight secondary ion mass spectrometry (ToF-SIMS), matrix-assisted laser desorption/ionization (MALD/I), electrospray ionization (ESI), and field desorption (FD) analyses of ethoxylated oligomers of 2,4,7,9-tetramethyl-5-decyne-4,7-diol (Surfynol(®) 104) were compared.Each of these desorption mass spectrometry (MS) techniques can produce spectra of unfragmented cationized oligomers. From the observed ion series we calculate average molecular weight information. We have compared the results of mass spectrometric analyses of a series of ethoxylated Surfynol surfactants. Our data indicate that FAB, ToF-SIMS, MALDI/I, and ESI produce similar results for the lower molecular weight species, but that as the average molecular weight increases FAB and SIMS produce slightly lower results than MALD/I and FD. This could be due to increased fragmentation. ESI produced a result similar to FAB and SIMS for the highest average molecular weight material. Further experiments compare the mass spectral results with gas chromatographic quantitative data. Although gas chromatography is not expected to accurately analyze the higher mass oligomers, we observe significant differences in intensities of the short-chain oligomers (especially the 0- and 1-mers) when compared to the desorption mass spectrometer results. These differences may reflect poor cationization efficiency for very short oligomer chains in the mass spectrometric analyses. </AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Parees</LastName><ForeName>D M</ForeName><Initials>DM</Initials><AffiliationInfo><Affiliation>Air Products and Chemicals, Inc., Allentown, Pennsylvania, USA. pareesdm@apci.com.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hanton</LastName><ForeName>S D</ForeName><Initials>SD</Initials><AffiliationInfo><Affiliation>Air Products and Chemicals, Inc., Allentown, Pennsylvania, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Clark</LastName><ForeName>P A</ForeName><Initials>PA</Initials><AffiliationInfo><Affiliation>Air Products and Chemicals, Inc., Allentown, Pennsylvania, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Willcox</LastName><ForeName>D A</ForeName><Initials>DA</Initials><AffiliationInfo><Affiliation>Air Products and Chemicals, Inc., Allentown, Pennsylvania, USA.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>J Am Soc Mass Spectrom</MedlineTA><NlmUniqueID>9010412</NlmUniqueID><ISSNLinking>1044-0305</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>1997</Year><Month>10</Month><Day>31</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>1997</Year><Month>12</Month><Day>15</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>1997</Year><Month>12</Month><Day>09</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2016</Year><Month>8</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>1998</Year><Month>4</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1998</Year><Month>4</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">27518863</ArticleId><ArticleId IdType="doi">10.1016/S1044-0305(97)00291-2</ArticleId><ArticleId IdType="pii">10.1016/S1044-0305(97)00291-2</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>J Am Soc Mass Spectrom. 1993 Jul;4(7):524-35</Citation><ArticleIdList><ArticleId IdType="pubmed">24227639</ArticleId></ArticleIdList></Reference><Reference><Citation>Anal Chem. 1985 Mar;57(3):675-9</Citation><ArticleIdList><ArticleId IdType="pubmed">2581476</ArticleId></ArticleIdList></Reference><Reference><Citation>J Am Soc Mass Spectrom. 1996 Jan;7(1):11-24</Citation><ArticleIdList><ArticleId IdType="pubmed">24202790</ArticleId></ArticleIdList></Reference><Reference><Citation>J Am Soc Mass Spectrom. 1995 Oct;6(10):906-11</Citation><ArticleIdList><ArticleId IdType="pubmed">24214034</ArticleId></ArticleIdList></Reference><Reference><Citation>Anal Chem. 1988 Oct 15;60(20):2299-301</Citation><ArticleIdList><ArticleId IdType="pubmed">3239801</ArticleId></ArticleIdList></Reference><Reference><Citation>Anal Chem. 1990 Sep 1;62(17):1836-40</Citation><ArticleIdList><ArticleId IdType="pubmed">2240572</ArticleId></ArticleIdList></Reference><Reference><Citation>Anal Chem. 1990 May 1;62(9):882-99</Citation><ArticleIdList><ArticleId IdType="pubmed">2194402</ArticleId></ArticleIdList></Reference><Reference><Citation>Science. 1995 Mar 10;267(5203):1483-5</Citation><ArticleIdList><ArticleId IdType="pubmed">17743549</ArticleId></ArticleIdList></Reference><Reference><Citation>Science. 1989 Oct 6;246(4926):64-71</Citation><ArticleIdList><ArticleId IdType="pubmed">2675315</ArticleId></ArticleIdList></Reference></ReferenceList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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