PMID- 20180578
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20100908
LR  - 20100525
IS  - 1520-5827 (Electronic)
IS  - 0743-7463 (Linking)
VI  - 26
IP  - 11
DP  - 2010 Jun 1
TI  - ToF-SIMS as a new method to determine the contact angle of mineral surfaces.
PG  - 8122-30
LID - 10.1021/la904443s [doi]
AB  - Time-of-flight secondary ion mass spectrometry (ToF-SIMS) has been used as a 
      technique to correlate the surface chemistry of chalcopyrite particles with their 
      contact angle. Three particle sizes (20-38, 75-105, and 150-210 microm) were 
      used, covering a range of contact angles between 20 and 90 degrees. Multivariate 
      statistical techniques were applied to the ToF-SIMS data in order to identify 
      structure in the data and the surface species contributing the most to surface 
      chemistry and hence the hydrophobicity variation. A method to calculate the 
      contact angle of chalcopyrite by ToF-SIMS surface analysis has been developed 
      using only information from three secondary ions: oxygen, sulfur, and a thiol 
      collector fragment. This approach is capable of determining the surface chemistry 
      contribution to the contact angle of individual mineral particles and the 
      distribution of contact angles within a large ensemble of particles. Further 
      measurements verified that the methodology can also be applied to flat surfaces, 
      enabling rapid surface chemistry-hydrophobicity correlations to be made on a wide 
      range of mineral and material systems.
FAU - Brito e Abreu, Susana
AU  - Brito e Abreu S
AD  - Ian Wark Research Institute, ARC Special Research Centre for Particle and 
      Material Interfaces, University of South Australia, Mawson Lakes, South Australia 
      5095, Australia.
FAU - Brien, Chris
AU  - Brien C
FAU - Skinner, William
AU  - Skinner W
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Langmuir
JT  - Langmuir : the ACS journal of surfaces and colloids
JID - 9882736
EDAT- 2010/02/26 06:00
MHDA- 2010/02/26 06:01
CRDT- 2010/02/26 06:00
PHST- 2010/02/26 06:00 [entrez]
PHST- 2010/02/26 06:00 [pubmed]
PHST- 2010/02/26 06:01 [medline]
AID - 10.1021/la904443s [doi]
PST - ppublish
SO  - Langmuir. 2010 Jun 1;26(11):8122-30. doi: 10.1021/la904443s.