Fluorescence hydrogen peroxide probe based on a microstructured polymer optical fiber modified with a titanium dioxide film.
A highly sensitive microstructured polymer optical fiber (MPOF) probe for hydrogen peroxide was made by forming a rhodamine 6G-doped titanium dioxide film on the side walls of array holes in an MPOF. It was found that hydrogen peroxide only has a response to the MPOF probe in a certain concentration of potassium iodide in sulfuric acid solution. The calibration graph of fluorescence intensity versus hydrogen peroxide concentration is linear in the range of 1.6 x 10(-7) mol/L to 9.6 x 10(-5) mol/L. The method, with high sensitivity and a wide linear range, has been applied to the determination of trace amounts of hydrogen peroxide in a few real samples, such as rain water and contact lens disinfectant, with satisfactory results.
Li
Dongdong
D
State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Information road 17, Xi'an, Shaanxi, 710119, China.
Wang
Lili
L
D018639:Contact Lens Solutions / Q000737:chemistry; D005456:Fluorescent Dyes / Q000737:chemistry; D006861:Hydrogen Peroxide / Q000032:analysis*; D006862:Hydrogen Sulfide / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D016014:Linear Models; D008855:Microscopy, Electron, Scanning; D008856:Microscopy, Fluorescence / Q000379:methods*; D055100:Optical Fibers; D011193:Potassium Iodide / Q000737:chemistry; D011891:Rain / Q000737:chemistry; D012235:Rhodamines / Q000737:chemistry; D014025:Titanium / Q000737:chemistry*
D018639:Contact Lens Solutions; D005456:Fluorescent Dyes; D012235:Rhodamines; C026188:rhodamine 6G; C009495:titanium dioxide; D011193:Potassium Iodide; D006861:Hydrogen Peroxide; D014025:Titanium; D006862:Hydrogen Sulfide