نتایج جستجو برای: hplc uv vis
تعداد نتایج: 108583 فیلتر نتایج به سال:
The post-chemiluminescence (PCL) reaction was observed with the mixture solution after completion CL reaction of luminol-H2O2 in present of Furazolidone (FZD). A novel method for the determination of FZD was established by flow-injection PCL. The CL intensity responded linearly to the concentration of FZD in the range 1.0×10 −7 -1.0×10 −5 g mL -1 , with a linear correlation of 0.9949. The detec...
The interaction of the important but often overdosed local anesthetic bupivacaine, its structural analogs 2,6-dimethylaniline, and N-methyl-2,6-dimethylacetanilide, and cocaine, with several electron deficient aromatic moieties were studied primarily by proton NMR and UV-visible spectroscopy. In solution, the anesthetic, its analogs and cocaine are electron donors and form pi-pi charge transfer...
In our study, the transformation of two most widely used UV filters, benzophenone-3 (BP3) and benzophenone-4 (BP4), in chlorinated water with disinfection reagents sodium hypochlorite (NaClO) and trichloroisocyanuric acid (TCCA) was studied. Based on the HPLC/MS and UV-Vis analysis the formation of two different chlorinated products (5-chloro-2-hydroxy-4-methoxybenzophenone and 3,5-dichloro-2-h...
The use of dyes such as tartrazine (E102) and sunset yellow in food, beverages health products for technological commercial purposes is common. adverse effects caused by these dyes, allergies hyperactivity disorder have been reported, especially children. In the present study, a chromatographic method was developed validated simultaneous determination yellow. separation performed on Lichrocart®...
Diuron is categorized as a probable human carcinogen by the United States Environmental Protection Agency (EPA). This work aimed to determine optimal conditions for catalytic degradation of in an aqueous solution with H2O2 using Algerian sodium Montmorillonite (Mont-Na) catalyst. The material characterized before and after experiment X-ray diffraction, Fourier transform infrared (FTIR) spectros...
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