Degradation of poly(vinyl alcohol) in strongly alkaline solutions of hydrogen peroxide

1985 ◽  
Vol 30 (6) ◽  
pp. 2321-2327 ◽  
Author(s):  
A. Hebeish ◽  
Ib. Ib. Abdel-Gawad ◽  
Is. K. Basily ◽  
S. El-Bazza
Keyword(s):  
Hydrogen Peroxide ◽  
Vinyl Alcohol ◽  
Alkaline Solutions ◽  
Poly Vinyl Alcohol

A novel nonenzymatic amperometric hydrogen peroxide sensor based on CuO@Cu2O nanowires embedded into poly(vinyl alcohol)

Talanta ◽  
2016 ◽  
Vol 147 ◽  
pp. 124-131 ◽  
Author(s):  
Daniela Chirizzi ◽  
Maria Rachele Guascito ◽  
Emanuela Filippo ◽  
Cosimino Malitesta ◽  
Antonio Tepore
Keyword(s):  
Hydrogen Peroxide ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Hydrogen Peroxide Sensor

scholarly journals Long-term stabilization of hydrogen peroxide by poly(vinyl alcohol) on paper-based analytical devices

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Tuchpongpuch Boonpoempoon ◽  
Wanida Wonsawat ◽  
Takashi Kaneta
Keyword(s):  
Hydrogen Peroxide ◽  
Vinyl Alcohol ◽  
Point Of Care ◽  
Enzymatic Reaction ◽  
Poly Vinyl Alcohol ◽  
Paper Substrate ◽  
Long Term Stability ◽  
Colorimetric Measurements ◽  
The Stability

Abstract Stabilizing reagents that can be deposited onto paper is an important issue for researchers who depend on paper-based analytical devices (PADs), because long-term stability of the devices is essential in point-of-care testing. Here, we found that poly(vinyl alcohol) (PVA) would stabilize hydrogen peroxide placed on a paper substrate following exposure to air. Horseradish peroxidase was employed as a sample in colorimetric measurements of PADs after hydrogen peroxide and 3,3′,5,5′-tetramethylbenzidine were deposited as substrates in an enzymatic reaction. The addition of PVA to hydrogen peroxide significantly suppressed its degradation. Concentrations of PVA that ranged from 0.5 to 2%, increased the duration of the stability of hydrogen peroxide, and the results for a PVA concentration of 1% approximated those of 2% PVA. Storage of the PADs at 4 °C in a refrigerator extended the stability of the hydrogen peroxide containing 2% PVA by as much as 30 days. The stability of hydrogen peroxide without PVA was degraded after one day under room temperature.

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