Absorption microspectroscopy of zinc tetraphenylporphyrin in an individual droplet in water

Seiji Funakura*, Kiyoharu Nakatani, Hiroaki Misawa, Noboru Kitamura, Hiroshi Masuhara

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

An absorption microspectroscopy system was developed for absorption measurements of a laser-manipulated individual microdroplet in water under an optical microscope. Absorption spectra of various sizes of individual tri-n-butyl phosphate (TBP) microdroplets containing zinc tetraphenylporphyrin (ZnTPP) were studied as a model. Absorbance of ZnTPP in the droplet was confirmed to increase linearly with the diameter of the droplet, showing that the Lambert-Beer law is followed for droplets with a diameter larger than 6 μm. The concentration of ZnTPP in the droplet dispersed in water is lower than that for pure TBP film by a fixed proportion, which was considered in terms of a constant water partition into TBP.

Original languageEnglish
Pages (from-to)3073-3075
Number of pages3
JournalJournal of physical chemistry
Volume98
Issue number12
DOIs
StatePublished - 1 Jan 1994

Fingerprint Dive into the research topics of 'Absorption microspectroscopy of zinc tetraphenylporphyrin in an individual droplet in water'. Together they form a unique fingerprint.

Cite this