Solid Phase Microextraction (SPME)

Solid phase microextraction (SPME), along with gas chromatography (GC) was developed for the analysis of residues in samples of naphthalene Textile sol-gel derived five 5,11,17,23-tetra-tert-butyl -25, 27-dihydroxy-26 ,28-diglycidyloxycalix [4] arene / hydroxy-terminated silicone oil fiber. The main parameters affecting the extraction and desorption process as temperature and time were optimized statistically.

Aldose reductase inhibitor effects of induced changes in lens proteins, naphthalene-1 ,2-dihydrodiol was studied in vitro in order to strengthen the role of aldose reductase is a naphthalene cataract (see polish: Naftalen). HPLC analysis of naphthalene-1 ,2-dihydrodiol incubated with reductase and NAD + indicated the formation of the metabolite peak corresponding to 1.2-naphthoquinone. Soluble proteins in rat lenses based on gel filtration of crude lens extracts through Sephadex PD-10, incubated with naphthalene-1 ,2-dihydrodiol in the presence of NAD + shows the absorbance of 450 nm and their spectra were essentially the same as 1 ,2-naphthoquinone-protein adducts. Similar spectra were also obtained from proteins isolated from rat lens intact after in vitro incubation in medium containing naphthalene-1 ,2-dihydrodiol.

Low melting point alloy or solution of two or more substances (usually metal), which is available by varying the percentage of components. “

Therefore, the metabolite formed from naphthalene-1 ,2-dihydrodiol by aldose reductase is 1,2-naphthoquinone. Lens proteins modified by naphthalene-1 ,2-dihydrodiol appear essentially identical to protein adducts formed by 1,2-naphthoquinone and their formation can be prevented by both hydantoin and carboxylic acid containing aldose reductase inhibitors.

Read also about polish: Toluen

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