Fluorescent Intensity of Dye Solutions under Different pH Conditions
نویسندگان
چکیده
منابع مشابه
Fluorescent Intensity of Dye Solutions under Different pH Conditions
Fluorescent tracers are widely used for assessment of spray quantity in the field due to their relatively high sensitivity, low cost and user safety. However, many concerns have been raised over their measurement accuracy due to questions of stability of fluorescence during tests. Stable analysis of fluorescence is essential to ensure accurate evaluation of pesticide spray application efficienc...
متن کاملChanges in Major Peanut Allergens Under Different pH Conditions
Regional dietary habits and cooking methods affect the prevalence of specific food allergies; therefore, we determined the effects of various pH conditions on major peanut allergens. Peanut kernels were soaked overnight in commercial vinegar (pH 2.3) or acetic acid solutions at pH 1.0, 3.0, or 5.0. Protein extracts from the sera of seven patients with peanut-specific IgE levels >15 kU(A)/L were...
متن کاملHigh-throughput phagocytosis assay utilizing a pH-sensitive fluorescent dye.
We describe a development of a novel high-throughput phagocytosis assay based on a pH-sensitive cyanine dye, CypHer5E, which is maximally fluorescent in an acidic environment. This dye is ideally suited for the study of phagocytosis because of the acidic conditions generated in the intracellular phagocytic vesicles after particle uptake. Use of CypHer5E-labeled particles results in greatly redu...
متن کاملTernary Solutions under Stratospheric Conditions
The reaction probabilities of NzO~ and C10N02 with HZO on liquid sulfuric acid surfaces have been reexamined to survey the effect of HNO~ on these two hydrolysis rates, using a fast flow reactor coupled to a chemical ionimtion mass spectrometer. The. measurements were cankd out by maintaining constant H20 and HNO~ partial pressures and by varying temperatures between 227 and 195 K in order to m...
متن کاملA highly fluorescent pH sensing membrane for the alkaline pH range incorporating a BODIPY dye.
A robust and re-usable dipstick-type fluorescent pH sensor for the alkaline pH range was developed by embedding a brightly fluorescent boron-dipyrromethene (BODIPY) dye bearing an acidic phenol moiety into a polyurethane matrix immobilized on a 3D epoxy-functionalized polymer support. The sensor strip has a dynamic working range of pH 10.0-13.1, i.e., operates in strongly basic media where pH g...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of ASTM International
سال: 2005
ISSN: 1546-962X
DOI: 10.1520/jai12926