91 research outputs found
Electrochemical determination of hydroquinone using hydrophobic ionic liquid-type carbon paste electrodes
Get PDFThree types of carbon paste electrodes (CPEs) with different liquid binders were fabricated, and their electrochemical behavior was characterized via a potassium hexacyanoferrate(II) probe. 1-Octyl-3-methylimidazolium hexafluorophosphate ionic liquid (IL) as a hydrophobic conductive pasting binder showed better electrochemical performance compared with the commonly employed binder. The IL-contained CPEs demonstrated excellent electroactivity for oxidation of hydroquinone. A diffusion control mechanism was confirmed and the diffusion coefficient (D) of 5.05 × 10-4 cm2 s-1 was obtained. The hydrophobic IL-CPE is promising for the determination of hydroquinone in terms of high sensitivity, easy operation, and good durability
Synthesis of very low birefringence polymers using fluorinated macromers for polymeric waveguides
No full textQuinazolines. XXIV. The Synthesis of 2,4-Diazatetra-cyclo[7,3,1,17,11,01,6]tetradecanes(Adamantano [1,2-d]pyrimidines)
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Pterins. III. Methylation of 6-Methyl-5,6,7,8-tetrahydropterin, N-5-Demethylation of 1,3,5,6-Tetramethyl-5,6,7,8-tetrahydropterinium chloride hydrochloride and exchange of the 5-Methyl group in 5,6-Dimethyl-5,6,7,8-tetrahydropterin
No full textQuinazolines. XXIII. The synthesis of 3,5-Diazatetracyclo[7,3,1,17,11,01,6]tetradecanes (Adamantano[2,1-d]pyrimidines)
No full textPterins. VIII. The absolute configuration at C 6 of natural 2-Amino-6-[(1'R,2'S)- 1',2'-dihydroxypropyl]-5,6,7,8-tetrahydropteridin-4(3H)-one (L-erythro-5,6,7,8-tetrahydrobiopterin)
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