[PDF] Top 20 laboratorio-fisica-trabajo-energia

... the detection of a few compounds by high-performance liquid chromatography (HPLC) and capillary electrophoresis ...[21,22]. Fingerprint analysis based on ... See full document

... no fingerprint analysis of the two medicines has been reported ...ultra-performance liquid chromatography coupled with mass spectrometry technology has been found to be a ... See full document

... gas chromatography with electron capture detection [9] or mass spectrometry (MS) [10] and high-performance liquid chromatography (HPLC) with ultraviolet (UV) detection ... See full document

... UV detection was proposed for the determination of 2,4-D and atrazine from corn ...of detection achieved enabled only the screening of highly contaminated environmental ... See full document

... 2006). Liquid chromatograph/mass spec- trometry (LC-MS/MS) is widely used as the reference method (Carter 2009) and is a reliable diagnostic tool able to distinguish 25(OH)D2 from 25(OH)D3 (Krasowski 2011; van den ... See full document

... involves multiple time-consuming steps and requires large volumes of organic solvent which costs high and is dangerous to analytes. Although SPE requires less solvent and shorter preparation time than LLE, the SPE ... See full document

... et al., 2005). Thus, determination of imidacloprid residues in tobacco leaf is an important issue of serious concern from consumers’ safety point of view. Determination of imidacloprid residues in crops/ food products ... See full document

... primers (ITS-S, AGG AGA AGT CGT AAC AAG; ITS- AS, GTT TCT TTT CCT CCG CT) [11] and 1.5 U of Taq Polymerase (KAPA Taq DNA Polymerase with dye, KAPA Biosystems, Woburn, MA, USA) for a 50 L PCR reaction. A GeneAmp 9700 ... See full document

... In this context, it is necessary to use analytical tools that can quantify caffeine in pharmaceutical formulations, considering the new technologies developed for food supplements. Currently there have been a few studies ... See full document

... HPLC–DAD: high-performance liquid chromatogra- phy with diode array detector; HPLC–UV: high-performance liquid chroma- tography with ultraviolet detector; HWW: ... See full document

... the fingerprint of Resina Draconis has been widely analyzed with chromatographic methods and most of the studies are based on HPLC [24, ...the analysis time of the method was still up to 45 min ... See full document

... ''Accuracy is the degree of closeness of the determined value to the nominal or known true value under prescribed conditions , whereas Precision is the closeness of agreement (i.e., degree of scatter) among a series of ... See full document

... Pharmaceutical Analysis 50 JKKMMRF College of Pharmacy was performed on an enable aligent zorabax(thermo) ...new high performance liquid chromatographic method has been developed and validated ... See full document

... the analysis of abamectin in ...have high degradation rates, almost disappearing within 48 ...the analysis of abamectin in water, decreasing its running time and ensuring the repeatability of its re- ... See full document

... rosuvastatin detection and ...before analysis is an important ...and high precise reproducible recovery both for analytes and ...maximum detection sensitivity, formic acid ... See full document

... The spiked honey samples set at two levels (50 and 100 µg/L) were analyzed by the developed method, and the adsorption solution was analyzed by HPLC. Fig. 8(a) to 8(c) shows the chromatograms of the 100 µg/L mixed ... See full document

... the detection of 12C+ and 13C+ is that they are omni-present, from the organic modifiers used for conventional ...to high background interferences, so that sensitive detection is not ...However, ... See full document

... The method was developed based upon the experience obtained from the HPLC method previously devel- oped for the analysis of RIT [17]. The previous experi- ment was performed using a mobile phase consisting of ... See full document

... prior analysis. For example, liquid-phase microextraction (LPME) was successfully used for extraction of analytes from aqueous samples (Jeannot and Cantwell 1996; He and Lee ... See full document

... ultra-performance liquid chromatography (UPLC) method has been developed and validated for estimation of haloperidol (HAL) in human plasma in ...simple liquid-liquid extraction ... See full document