Abstract：
:The use of nanofilm spray products (NFPs) has been associated with a number of severe cases of airway injuries; however, the causative agents are unknown. To identify possible causative agents, 10 products from three different suppliers have been analysed using two mass spectrometric methods: (1) ESI-MS and ESI-MS/MS; (2) GC-MS and GC-MS/MS. The 10 products could be classified into three groups (NFPs 1-3). NFP 1 and NFP 2 contained hydrolysates and condensates of the organo-functionalized silanes 1H,1H,2H,2H-perfluorooctyl triisopropoxysilane and hexadecyl triethoxysilane, respectively. NFP 3 contained non-ionic detergents and abrasive as active ingredients. To verify the fluorosilane solution in NFP 1, a synthetic NFP 1 was prepared by hydrolysis and condensation of 1H,1H,2H,2H-perfluorooctyl triethoxysilane. After about 1month in acidic 2-propanol substitution of the ethoxy groups with isopropoxy groups had taken place and all silane was converted to disiloxanes, trisiloxanes and tetrasiloxanes.
journal_name
Chemospherejournal_title
Chemosphereauthors
Nørgaard AW,Wolkoff P,Lauritsen FRdoi
10.1016/j.chemosphere.2010.06.004subject
Has Abstractpub_date
2010-09-01 00:00:00pages
1377-86issue
11eissn
0045-6535issn
1879-1298pii
S0045-6535(10)00651-Xjournal_volume
80pub_type
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