Editing Glucose (section)

====Photometric test-strip method====
The test-strip method employs the above-mentioned enzymatic conversion of glucose to gluconic acid to form hydrogen peroxide. The reagents are immobilised on a polymer matrix, the so-called test strip, which assumes a more or less intense color. This can be measured reflectometrically at 510&nbsp;nm with the aid of an LED-based handheld photometer. This allows routine blood sugar determination by nonscientists. In addition to the reaction of phenol with 4-aminoantipyrine, new chromogenic reactions have been developed that allow photometry at higher wavelengths (550&nbsp;nm, 750&nbsp;nm).<ref name="purpuled"/><ref>{{Cite journal |doi=10.1039/A709038B |title=Water-soluble chromogenic reagent for colorimetric detection of hydrogen peroxide—an alternative to 4-aminoantipyrine working at a long wavelength |journal=Analytical Communications |volume=35 |issue=2 |pages=71–74 |year=1998 |last1=Mizoguchi |first1=Makoto |last2=Ishiyama |first2=Munetaka |last3=Shiga |first3=Masanobu}}</ref>