Rapid ¹H NMR determination of hydrogen peroxide in cosmetic products and chemical reagents

Abstract

A methodology utilizing 1H NMR spectroscopy has been developed to measure the concentration of hydrogen peroxide in hair sprays, nail treatments, hydrogen peroxide solutions for disinfection and chemical reagents.

Oxygen‐Delivery Materials: Synthesis of an Open‐Cage Fullerene Derivative Suitable for Encapsulation of H2O2 and O2

“…We thought that the new signal must be due to H 2 O 2 encapsulated in 7 . For comparison, a mixture of H 2 O 2 /H 2 O in [D 6 ]DMSO showed signals at 3.4 and 10.2 ppm for H 2 O and H 2 O 2 respectively . The difference between the signals of H 2 O and H 2 O 2 before and after the encapsulation is both at around 7 ppm.…”

Photocatalytic Synthesis of 3‐Sulfanyl‐ and 1,3‐Bis(sulfanyl)indolizines Mediated by Visible Light

“…Finally, IV is rearomatized to the product 3a by the loss of a proton, releasing H 2 O 2 as a by‐product (Scheme ). Hydrogen peroxide was detected by 1 H NMR analysis of the crude reaction, appearing as a singlet in δ = 10.2 ppm (Figure S2) …”

Natural catalyst for luminol chemiluminescence: application to validate peroxide levels in commercial hair dyes

“…[40] Determination of hydrogen peroxide in cosmetic products using different methods has been well documented. [41][42][43][44] Titrimetric methods are a well known and the most commonly used among them that involve either oxidation by KMnO 4 or ceric sulphate (manganimetry) or reduction by iodide, followed by sodium thiosulfate titration of the released iodine (iodometry), which are widely used. [41] But while analyzing peroxide in commercial hair dye products, interference by compounds present in the cosmetic matrix is unavoidable and in turn specificity is reduced.…”