Effect of delay time and grid voltage changes on the average molecular mass of polydisperse polymers and polymeric blends determined by delayed extraction matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Effect of delay time and grid voltage changes on the average molecular mass of polydisperse polymers and polymeric blends determined by delayed extraction matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (Articolo in rivista) (literal)

Anno

• 2005-01-01T00:00:00+01:00 (literal)

Alternative label

• P.Mineo, D.Vitalini, E.Scamporrino, S.Bazzano, R.Alicata (2005)
  Effect of delay time and grid voltage changes on the average molecular mass of polydisperse polymers and polymeric blends determined by delayed extraction matrix-assisted laser desorption/ionization time-of-flight mass spectrometry
  in RCM. Rapid communications in mass spectrometry
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• P.Mineo, D.Vitalini, E.Scamporrino, S.Bazzano, R.Alicata (literal)

Pagina inizio

• 2773 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 19 (literal)

Rivista

• RCM. Rapid communications in mass spectrometry (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

• No. Citazione=4; Autocitazione=2; Motore utilizzato per le citazioni=Isiwebofknowledge.com (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• CNR, Università di Catania. (literal)

Titolo

• Effect of delay time and grid voltage changes on the average molecular mass of polydisperse polymers and polymeric blends determined by delayed extraction matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (literal)

Abstract

• The dependence of the calcd. av. mol. mass of a polyethylene glycol with a large polydispersity on the instrumental parameters adopted in the acquisition of mass spectra using delayed extn. matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (DE MALDI-TOFMS) was investigated. It has been shown that a combined effect of delay times and potential gradients can act on the ion cloud in the source chamber affecting both mass resoln. and av. mol. mass value of the analyzed polymeric sample. Also examd. was a blend of two different polymers (a PEG and a PMMA com. sample having a similar av. mol. mass), which presents an addnl. problem concerning the discrimination among the different polymer species as a function of the exptl. conditions. In this work, the best instrumental conditions to obtain both good resoln. and a correct av. mol. mass for the examd. polydisperse sample are reported. (literal)

Prodotto di

• 4. Sistemi polimerici innovativi ad elevate prestazioni per applicazioni biomediche ed ambientali (PM.P02.009.001) (Modulo)
• Istituto di chimica e tecnologia dei polimeri (ICTP) (Istituto)

Autore CNR

• SEBASTIANO BAZZANO (Unità di personale esterno)
• PLACIDO GIUSEPPE MINEO (Unità di personale interno)
• DANIELE VITALINI (Unità di personale interno)

Incoming links:

Autore CNR di

• DANIELE VITALINI (Unità di personale interno)
• PLACIDO GIUSEPPE MINEO (Unità di personale interno)
• SEBASTIANO BAZZANO (Unità di personale esterno)

Prodotto

• Istituto di chimica e tecnologia dei polimeri (ICTP) (Istituto)
• 4. Sistemi polimerici innovativi ad elevate prestazioni per applicazioni biomediche ed ambientali (PM.P02.009.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• RCM. Rapid communications in mass spectrometry (Rivista)