HPLC detection and quantification of polyphenolic compounds Detection and quantification of selected phenolic compounds in the ethanol extract were determined by HPLC-DAD analysis as described by Ismet et al. [13] with some modifications. It was carried out on a Dionex UltiMate 3000 system equipped with quaternary rapid separation pump (LPG-3400RS) and photodiode array detector (DAD-3000RS). Separation was performed using Acclaim® C18 (5µm) Dionex column (4.6 x 250 mm) at 30 ºC with a flow rate of
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Research Methodological Approaches Introduction This essay have discussed about the main methodological approaches and the definition and explanation of the main philosophical terms‚ as well as mentioned about which philosophical approach will be use in the research project for next year. Business Research Ontology ‘A theory concerning the nature of social phenomena as entities that are to be admitted to a know ledge system’ (Saunders‚ 2007: 605). The word ‘ontology’ seems to generate
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Running Head: CATTELL James McKeen Cattell Vanessa Laurent ID Number- 70407246 Southern Connecticut State University April 22‚ 2010 James McKeen Cattell was a dominant structure in introducing experimental psychology in the United States. His greatest contribution to psychology is his objective methods of study and the thought that psychology should be applied to practical aspects of life. He has been credited as developing an approach to psychological research that continues to
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along with active back pressure regulated at 1800 psi. Calibration runs using pure lycopene standard was run at different concentrations for quantification of lycopene content in the extracted samples The identification of the peaks was carried out by comparing the retention times with those obtained with a standard solution of all-trans lycopene. The quantification was performed using the relative area under the curve. Lycopene extracted using n-hexane as a solvent at 65°C was also characterized for
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data helpful in the field of criminology. However it does leave a void where attitudes‚ feelings‚ behaviors‚ and perceptions are concerned. Because they are very difficult to accurate quantify they are subject to artificial techniques for their quantification. Qualitative methods have the advantage of allowing criminologists to be deductive in stating their hypotheses and research questions from an established theory. This allows criminologists to test theories and examine relationships for
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poorly appraised projects have seven times more probability of failure within three years of their implementation as compared to well appraised projects. As all projects compete for scarce resources‚ good quality investment appraisal of projects‚ quantification of risks of different stakeholders and well laid out strategies to manage risks expedite financial closure and timely completion of projects. In the developing economies‚ the infrastructure sectors such as Power‚ Roads and Highways‚ Telecommunications
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for example‚ certain tax laws will affect the business but really require little additional analysis compared to the threat posed by a competitor. Further‚ it is important to try to quantify the effect of the environmental factors identified. Quantification will allow the true impact to be assessed and compared historically and in the future. Lastly‚ scenarios are forecast based upon the environmental factors identified and strategies developed accordingly. Strategic Position After carefully
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Abstract Background: Recently‚ the accuracies of many commercially available immunoassays for Vitamin D have been questioned. Liquid chromatography tandem mass spectrometry (LC- MS/MS) has been shown to facilitate accurate separation and quantification of the major circulating metabolite 25-hydroxyvitamin-D3 (25OHD3) and 25hydroxyvitamin-D2 (25OHD2) collectively termed as 25OHD. However‚ among other interferents‚ this method may be compromised by overlapping peaks and identical masses of epimers
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Introduction…………………………………………………………….3 Corporate Risk Management Framework……………………………...4 Corporate Risk Management Processes………………………………..8 Conclusion………………………………………………………….....13 Bibliography…………………………………………………………..14 Risk refers to the uncertainty that surrounds future events and outcomes. It is the expression of the likelihood and impact of an event with the potential to influence the achievement of an organization’s objectives. Risk management is a systematic approach
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Abstract The experiment‚ entitled Extraction and Characterization of Proteins‚ aims to isolate casein from milk and albumin from egg; to explain the methods employed for protein extraction; to apply spectrophotometric methods in characterizing and quantifying extracted casein and albumin. The experiment was divided into 2 parts; the extraction of Albumin from egg and the determination of protein concentration via the Warburg-Christian method and Bradford Assay method. In the first part‚ egg
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