PMID- 23633017
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20131210
LR  - 20211021
IS  - 1879-1123 (Electronic)
IS  - 1044-0305 (Linking)
VI  - 24
IP  - 7
DP  - 2013 Jul
TI  - Particle production in reflection and transmission mode laser ablation: 
      implications for laserspray ionization.
PG  - 1108-15
LID - 10.1007/s13361-013-0631-z [doi]
AB  - Particles were ablated from laser desorption and inlet ionization matrix thin 
      films with a UV laser in reflection and transmission geometries. Particle size 
      distributions were measured with a combined scanning mobility particle sizer 
      (SMPS) and aerodynamic particle sizer (APS) system that measured particles in the 
      size range from 10 nm to 20 mum. The matrixes investigated were 
      2,5-dihydroxybenzoic acid (DHB), alpha-cyano-4-hydroxycinnamic acid (CHCA), sinapic 
      acid (SA), 2,5-dihydroxy-acetophenone (DHAP), and 2-nitrophloroglucinol (NPG). 
      Nanoparticles with average diameters between 20 and 120 nm were observed in both 
      transmission and reflection geometry. The particle mass distribution was 
      significantly different in reflection and transmission geometry. In reflection 
      geometry, approximately equal mass was distributed between particles in the 20 to 
      450 nm range of diameters and particles in the 450 nm to 1.5 mum diameter range. 
      In transmission mode, the particle mass distribution was dominated by large 
      particles in the 2 to 20 mum diameter range. Ablation of inlet ionization matrices 
      DHAP and NPG produced particles that were 3 to 4 times smaller compared with the 
      other matrices. The results are consistent with ion formation by nanoparticle 
      melting and breakup or melting and breakup of the large particles through contact 
      with heated inlet surfaces. ᅟ
FAU - Musapelo, Thabiso
AU  - Musapelo T
AD  - Department of Chemistry, Louisiana State University, Baton Rouge, LA, USA.
FAU - Murray, Kermit K
AU  - Murray KK
LA  - eng
PT  - Journal Article
DEP - 20130430
PL  - United States
TA  - J Am Soc Mass Spectrom
JT  - Journal of the American Society for Mass Spectrometry
JID - 9010412
EDAT- 2013/05/02 06:00
MHDA- 2013/05/02 06:01
CRDT- 2013/05/02 06:00
PHST- 2012/12/20 00:00 [received]
PHST- 2013/03/26 00:00 [accepted]
PHST- 2013/03/23 00:00 [revised]
PHST- 2013/05/02 06:00 [entrez]
PHST- 2013/05/02 06:00 [pubmed]
PHST- 2013/05/02 06:01 [medline]
AID - 10.1007/s13361-013-0631-z [doi]
PST - ppublish
SO  - J Am Soc Mass Spectrom. 2013 Jul;24(7):1108-15. doi: 10.1007/s13361-013-0631-z. 
      Epub 2013 Apr 30.