Poly vinyl butyral) (PVB) is characterized by high adhesion to glass, excellent mechanical strength, good dispersion for dyes, and light stability, and consequently, it has been extensively used for many applications such as an adhesive interlayer in safety glass, [28] UV indicator, [29, 30], and electron beam irradiation dosimeter [31, 32].
Therefore, calixarene derivative 10 might serve as a good chiral UV-indicator.
Analytical thin-layer chromatography (TLC) was performed on precoated TLC plates (0.20 mm silica gel60 with fluorescent indicator UV 254) (Merck).
HPTLC was performed on 10 cm × 20 cm Higlachrosep plates coated with 0.2 mm layers of nanosilica containing UV 254 fluorescent indicator (S.D. Fine Chemicals, India).
UV spectroscopy and RNA quality indicator (RQI) values obtained from the Experion automated electrophoresis system (Bio-Rad) were used to determine RNA integrity.
Thin layer chromatography was carried out using J. T. Baker flexible sheets (silica gel IB2-F) with fluorescent indicator, visualizing with UV light at 254 nm or iodine stain.
The preparation and characterisation of a novel, UV-activated solvent-based, colourimetric indicator for O2 is described, comprising a redox dye (methylene blue, MB), semiconductor photocatalyst (TiO2), and a sacrificial electron donor (SED), all dispersed/dissolved in a polymer medium (sulfonated polystyrene, SPS).
A tunable frequency UV system was designed to allow indicator bacteria to be exposed to continuous or pulsed UV light with a same low pressure mercury lamp, which can emit UV light with a wavelength of 253.7 nm, and the pulse frequency was adjustable.
In this study, a new performance indicator independent of the microbial UV dose-response curve, namely particle minimum UV dose (Dmin), was introduced, and its feasibility was evaluated in the configuration optimization of 3-lamp UV reactors for water disinfection.
Erythema has long been used as an indicator of UV-induced inflammation [ 26] and has been characterized as a reliable, reproducible and quantitative measurement of the degree of UV-induced inflammation [ 27].
Chlorine dioxide (OClO), an important indicator for stratospheric chlorine activation, can be measured in the UV spectral range by differential optical absorption spectroscopy (DOAS).
