naphthoquinones has been researched along with benzophenone* in 2 studies
2 other study(ies) available for naphthoquinones and benzophenone
| Article | Year |
|---|---|
High-performance liquid chromatographic method of photoactive compounds based on diazonaphthoquinone for positive photoresists.
An analytical method for the compositional and quantitative analysis of photoactive compounds (PACs) in positive photoresist (Posi PR) has been developed by high-performance liquid chromatography (HPLC). Under optimum HPLC conditions, various types of PACs consisting of a mixture of isomers were satisfactorily separated with no interference. This method was applied to the quantitative analysis of PACs in Posi PR. All correlation coefficients were better than or equal to 0.998. The precision and accuracy showed no significant deviation and were measured with acceptable values. The intra-batch precision and accuracy (%) of quality control samples ranged from 0.80 to 1.46% and from 101.7 to 102.8%. Consequently, the method was demonstrated to be acceptable for the analysis of PACs in Posi PR. We believe that the HPLC method developed in this work can be used for the compositional and quantitative analysis of PACs in Posi PR. Topics: Azo Compounds; Benzophenones; Chromatography, High Pressure Liquid; Furans; Naphthalenesulfonates; Naphthoquinones; Photosensitizing Agents; Reproducibility of Results | 2013 |
Photosensitizing properties of compounds related to benzophenone.
Benzophenone is a phototoxic compound with absorption maxima in the ultraviolet A (UVA) and ultraviolet B (UVB) range. Many benzophenone derivatives are known to be photosensitizing. On the other hand, 2-hydroxy-4-methoxybenzophenone is used as a photoprotective agent. The aim of the present study was to analyse a range of benzophenone derivatives and thus examine the effects of molecular changes in the benzophenone molecule on phototoxic behaviour. Phototoxicity was tested by an in vitro photohaemolysis test. The tested compounds were benzophenone itself and the derivatives 2-hydroxybenzophenone, 2-aminobenzophenone, 2-benzoylbenzoic acid, 3-hydroxybenzophenone, and 4-hydroxybenzo-phenone, as well as the structurally similar compounds 9-fluorenone, 9-fluorenone-2-carboxylic acid, cyclohexyl phenyl ketone, and 1,4-naphtho-quinone. It was shown that minor changes in molecular structure can result in highly different phototoxic characteristics. Topics: Benzophenones; Cyclohexanes; Erythrocytes; Fluorenes; Hemolysis; Humans; In Vitro Techniques; Naphthoquinones; Photosensitizing Agents; Spectrophotometry; Ultraviolet Rays | 2013 |