[PDF] Top 20 J. Braz. Chem. Soc. vol.28 número5
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J. Braz. Chem. Soc. vol.28 número5
... For example purpose, Figure 5 presents the concentration and spectra profiles of the four compounds involved in the overall reaction of soybean oil methanolysis provided by MCR-ALS an[r] ... See full document
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J. Braz. Chem. Soc. vol.28 número5
... An easy and efficient sample preparation method was developed for the determination of natamycin residues in wine samples by solvent extraction and ultra-high performance liquid chroma[r] ... See full document
7
J. Braz. Chem. Soc. vol.28 número5
... Finally, validating an analytical method entails determining whether it fulfills its intended purpose. To do this, some figures of merit were determined such as sensitivity (fraction of analytical signal that is due to ... See full document
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J. Braz. Chem. Soc. vol.28 número5
... Isolates of Colletotrichum gloeosporioides, Alternaria alternata, Lasiodiplodia theobromae, B o t r y o s p h a e r i a d o t h i d e a, A s p e rg i l l u s n i g e r , Cladosporium sp., Fusarium palidoroseum and ... See full document
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J. Braz. Chem. Soc. vol.28 número5
... It was also observed that essential oils extracted from entire leaves, crushed leaves (in a blender without water), or blended leaves (with water) showed different yield and different[r] ... See full document
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J. Braz. Chem. Soc. vol.28 número5
... 5. Bollati, M.; Alvarez, K.; Assenberg, R.; Barontid, C.; Canard, B.; Cooke, S.; Coutard, B.; Decroly, E.; Lamballeried, X.; Gouldd, E. A.; Grardd, G.; Grimesc, J. M.; Hilgenfeldg, R.; Janssonh, A. M.; Malet, H.; ... See full document
12
J. Braz. Chem. Soc. vol.28 número5
... In the search for compounds exhibiting antinociceptive activity, the fractions obtained from silica gel column chromatography were tested on formalin-induced licking response in mice,[r] ... See full document
17
J. Braz. Chem. Soc. vol.28 número5
... The parameters affecting the extraction eficiency of the proposed method such as the pH of sample solution, centrifugation time, type and volume of the dispersive solvent, and the salt[r] ... See full document
8
J. Braz. Chem. Soc. vol.28 número5
... A fast and sensitive method using high performance liquid chromatography-fluorescence detection (HPLC-FD) and ultra-high performance liquid chromatography tandem mass spectrometry (UHP[r] ... See full document
9
J. Braz. Chem. Soc. vol.28 número5
... A feasible, rapid, sensitive and reliable dispersive liquid-liquid microextraction (DLLME) and ultrasonic assisted liquid-liquid microextraction (USAEME) combined with high-performance [r] ... See full document
10
J. Braz. Chem. Soc. vol.28 número5
... For the PCDD/Fs and NO-PCBs, 100 µL was injected on a programmed temperature vaporizer (Gerstel, Mülheim an der Ruhr, Germany) in the solvent vent mode while 2 µL was injected in the splitless mode for the MO-PCBs and ... See full document
10
J. Braz. Chem. Soc. vol.28 número5
... The LTQ Orbitrap XL results based on eight tar sand bitumen samples from the Pirambóia Formation (Paraná Basin, Brazil) show that the acidic species composition (mainly O 2 class) is[r] ... See full document
10
J. Braz. Chem. Soc. vol.28 número5
... Essential and toxic metals were determined in eighteen samples of medicinal herbs from Poland, Lithuania and Serbia by means of laser-induced breakdown spectroscopy (LIBS) and inductive[r] ... See full document
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J. Braz. Chem. Soc. vol.28 número5
... oriented aryl singlets at d 6.98 and 6.68, the most deshielded of which was assigned to H-10 due to its NOESY (nuclear Overhauser effect spectroscopy) correlation with H-1; (ii) H-1 and H-2 were assigned at d 6.36 (2H), ... See full document
12
J. Braz. Chem. Soc. vol.28 número5
... The purpose of this study was to compare the performance of gas chromatographic with electron capture detector, pulsed flame photometric detector and mass spectrometry (GC-ECD, GC-PFPD[r] ... See full document
7
J. Braz. Chem. Soc. vol.28 número5
... At first, a study has been made of the optimum conditions for chemical activation of the pencil graphite electrodes (APGE) and then the activated pencil graphite electrode was modified[r] ... See full document
11
J. Braz. Chem. Soc. vol.28 número5
... To obtain the most favorable conditions of cationic micellar precipitation procedure, various parameters were studied including the kind and concentration of salt, pH, concentration o[r] ... See full document
7
J. Braz. Chem. Soc. vol.28 número5
... 7. Kossatz, S.; Grandke, J.; Couleaud, P.; Latorre, A.; Aires, A.; Crosbie-Staunton, K.; Ludwig, R.; Dähring, H.; Ettelt, V.; Lazaro-Carrillo, A.; Calero, M.; Sader, M.; Courty, J.; Volkov, Y.; ... See full document
9
J. Braz. Chem. Soc. vol.28 número5
... Linoleic acid is more reactive that the oleic acid because it has a methylenic bis-allylic site at carbon 11, between two double bonds, which can easily lose a hydrogen atom. The removal of a hydrogen from the carbon at ... See full document
9
J. Braz. Chem. Soc. vol.28 número5
... Here we report the synthesis of new unsymmetric linear pentadentate Schiff base ligand and their chelates with some transition metal ions, e.g., manganese(II), nickel(II), copper(II),[r] ... See full document
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