Determination of hydrogen peroxide by photoinduced fluorogenic reactions

Airship Measurements of Hydrogen Peroxide and Related Parameters in the Marine Atmosphere Along the Western U.S. Coast

“…0.1 ppbv in most of these studies) (5,6) A strong seasonal dependence is observed; the highest levels occurred in summer and the lowest in winter (10,11). There is also a diurnal variation, with the peak concentration occurring during the afternoon (3,(11)(12)(13)(14). The seasonal and diurnal trends essentially reflect the availability of solar radiation.…”

“…In this method, gaseous H 2 O 2 was collected continuously with a high-efficiency straight-inlet Nafion membrane diffusion scrubber [NMDS, (12)]. The analytical reaction is far less sensitive to methylhydroperoxide (MHP), relative to H 2 O 2 (22).…”

“…The design of the straight-inlet NMDS used in this study has been previously described (12,13). Briefly, the active length of the membrane tube is 40 cm; it exits and enters via the wall of a PTFE-lined glass tube.…”

Gas collection efficiency of annular denuders: A spreadsheet-based calculator

“…The device is a Nafion membrane diffusion scrubber, with a membrane outer diameter of 600 m, active length 40 cm, concentrically placed in a jacket tube of inner diameter 5 mm, used for the sampling of H 2 O 2 [32] for which a wet Nafion membrane is expected to behave as a perfect sink. The diffusion coefficient of H 2 O 2 at 22 • C was estimated from Graham's law (D ∝ (Mol.…”

Electrocatalytic Oxidation of Hydrogen Peroxide at a Sol‐gel Derived Carbon Ceramic Electrode Modified with Copper Iodide

“…Therefore, the development of the novel analytical methods for hydrogen peroxide is one of the aims in the analytical science. Many methods have been developed for the determination of H 2 O 2 , such as spectrophotometry, 11,12 fluorimetry, 13 chromatography, 14,15 chemiluminescence, 16,17 titrimetry 18 high performance liquid chromatography 19 and, especially electrochemistry. 20 The concept of modified electrodes is one of the exciting developments in the field of electroanalytical chemistry.…”