Abstract
A new kind of solid matrix, glasses from sugars, was developed for trace organic analysis. Clear glasses of glucose and trehalose were prepared by evaporating the sugar solutions onto solid supports. It was determined that the ratio of methanol to water was very important in forming a clear glass. Also, glasses made from pure trehalose often cracked. However, with the addition of 8-10% NaCl to the trehalose, no cracks were formed. Clear and rigid glasses of both glucose and trehalose/NaCl were obtained on quartz plates. Strong room-temperature fluorescence (RTF) and room-temperature phosphorescence (RTP) were obtained from benzo[<i>f</i>]quinoline (B[<i>f</i>lQ), 4-phenylphenol (4-PP), B[<i>a</i>]P-<i>r</i>-7,<i>t</i>-8,9,<i>c</i>-10-te-trahydrotetrol (tetrol I-1), triphenylene, and phenanthrene. The limits of detection (LODs) of both the RTF and RTP for 4-PP and B[<i>f</i>]Q in the glasses were in the subnanogram/milligram range.
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription