methods of polymer analysis

Ngày tải lên: 31/03/2014, 15:21

Ngày tải lên: 08/04/2014, 11:28

Ngày tải lên: 08/04/2014, 12:37

... Institute of Technology, Zürich University of Zürich, Swiss Banking Institute Master of Advanced Studies in Finance Master Thesis Statistical Methods of Valuation and Risk Assessment: Empirical Analysis ... volatility) for major equity market indices using standard methods as well as the most recent state -of- the-art methods. The analysis of the risk measures calculated by Riskometer on September ... ratio of 1.05 where the directional strategies exhibit a ratio of 0.75 and in the case of a minimal acceptable rate of 0% non-directional strategies exhibit on average an annualised ratio of 1.75...

Ngày tải lên: 16/04/2013, 20:00

Ngày tải lên: 23/05/2014, 12:30

Ngày tải lên: 30/05/2014, 23:38

... of disease in sarcoidosis or HP. In addition, finding of encapsulated exudates may suggest desquamation of early stage of Masson body which implies possible diagnosis in a limited number of ... infiltration of mast cells implies histological feature of organization of colla- genous matrices or interstitial fibrosis 10 . Basophilic leukocytes were never found in the normal control and most of ... interstitial lung disease. Conflict of Interest The authors have declared that no conflict of in- terest exists. References 1. Reynolds HY, Newball HH. Analysis of proteins and respira- tory cells...

Ngày tải lên: 03/11/2012, 11:48

... that is, the number of ads, the length of ads and when they are put on the air. -Web papers: You probably would not have seen this means of advertising on a list of advertising methods if you had ... other methods of communication. But not who also read them , advertise by a hotel's little sum of moneys also costly email, but also isn't acquired efficiently. Because number of email plenty ... than most of major forms of advertising. However, with the increasing number of television networks and stations, businesses might find good deals for placing commercials or other forms of advertisements....

Ngày tải lên: 15/04/2013, 14:02

Ngày tải lên: 17/09/2013, 15:16

Ngày tải lên: 05/10/2013, 15:15

... treatment of angina pectoris many years ago [2]; the pharmacological e ect of the dilation of the coronary arteries was found due to the action of nitrogen monoxide produced by decomposition of alkyl ... ingestion of 10–15 mL of each alkyl nitrite causes serious methe- moglobinemia [6].  e LD 50 value for an alkyl nitrite is reported to be 205 mg/kg.  ere are not many cases of analysis of alkyl ... eld of forensic toxicology. In this chapter, the methods for analysis of the compounds by headspace (HS)-gas chromatography (GC) and liquid-liquid extraction-GC are presented. Determination of...

Ngày tải lên: 18/10/2013, 00:15

... Paasivirta J et al. (1981) Trace Analysis of Chemical Warfare Agents. An Approach to the Environmental Monitoring of Nerve Agents. Ministry of Foreign Affairs of Finland, Helsinki, pp 27, 28, ... metabolites of VX, could be detected [18]. GC/MS analysis for EMPA in serum. (a) a TIC and mass chromatograms; (b) an EI mass spectrum of the t-BDMS derivative of EMPA; (c) a CI mass spectrum of the ... stream of nitrogen gas at room temperature e . iii.  e residue is dissolved in 100 µL of the dichloromethane solution of DAEMO (IS solu- tion); a 1-µL of it is injected into GC/MS for analysis...

Ngày tải lên: 18/10/2013, 00:15

... 10:316–323 14) Yamamoto I (1992) Methods for analysis of cannabis and its components. In: The Pharmaceutical Society of Japan (ed) Standard Methods of Chemical Analysis in Poisoning – With Commentaries, ... GC/MS analysis of ∆ 9 -THC-11-oic acid in human urine [15, 16]. e) A method of silylation of glassware to be done before analysis was reported [17]; such treat- ment suppresses the adsorption of ... spectra of ∆ 9 -THC-11-oic acid a er the TMS and methyl ester-TMS derivatizations. GC/MS analysis of ∆ 9 -THC-11-oic acid in urine 188 Cannabinoids and their metabolites GC analysis of cannabinoids...

Ngày tải lên: 24/10/2013, 19:15

... method Qualitative analysis is made by the comparison of the retention time of a peak of a specimen with that of the authentic standard and also by the con rmation of the absence of such a peak ... main tool for analysis of opiates and their metabolites. However, at the present time, GC/MS is being widely used for opiate analysis. For HPLC analysis of the conjugated forms of opiates, the ... low levels of morphine starting from a large amount of a specimen cannot be a proof of the intake of the drug.  e level of morphine in urine of healthy subjects determined by GC/MS was reported...

Ngày tải lên: 24/10/2013, 19:15

... action of methemo- globin reductase (identical with cytochrome b 5 reductase requiring NADH as a cofactor) pres- ent in mammalian red cells.  e concentration of methemoglobin in blood of normal ... is rare, but fatal ones a er ingestion of nitrate or nitrite were reported [2–6]. For analysis of nitrate or nitrite in blood plasma or serum, the methods by ion chlomatog- raphy [7] and GC/MS ... appearance of many interfering peaks. By GC/MS in the EI mode, it is di cult to detect the derivative, because of its lower sensitivity. Although there is a report [9] dealing with sensitive GC/MS analysis...

Ngày tải lên: 24/10/2013, 19:15

... developed a modi cation of the methods, which enabled accurate determination of blood Met-Hb even in the presence of high concentrations of CO-Hb by using about a 100-fold excess of potassium ferricynade ... concentrations of carboxyhemoglobin (CO-Hb); e.g., especially in the cases of  re and exhaust gas poisoning [5]. However, the above methods [1–4] are not suitable for specimens containing high levels of ... determination of Met-Hb in blood. Minor modi cations of this method were made by several researchers to increase sensitivity [2–4].  ese methods are based on a phenomenon that the absorbance maximum of...

Ngày tải lên: 24/10/2013, 19:15

... aliquot of it is subjected to GC/MS analysis. Cocaine and its metabolites 215 time of death nor those at the time of samplings.  erefore, there are great variation in the fatal levels of cocaine ... solvent mixture of chloroform and isopropanol or ethanol should be used.  e simultaneous analysis can be made using chloroform/isopropanol (9:1) or (3:1), and using columns of Bond Elut Certify® ... rmation of a target compound is usually achieved by agreement of its mass spectrum with that of the authentic standard. Since, with simultaneous use of a deuterated IS, a mass spectrum of a target...

Ngày tải lên: 29/10/2013, 01:15

... 15 mg of free pentazocine.  e solution is transferred to a small glass centrifuge tube with a ground-in stopper, followed by addition of several mg of solid K 2 CO 3 and 3 mL of chloroform. ... retention times of 3–7 min and 7–8 min, respectively. The amount of pentazocine and IS spiked into 1 mL of blank whole blood or urine was equally 50 ng. ⊡ Figure 5.2 223 In two autopsy cases of pentazocine ... and GC/MS [8]. In this chapter, a simple method for GC/MS analysis of pentazocine in human whole blood and urine is presented. Structures of pentazocine and dextromethorphan (IS). ⊡ Figure 5.1 Reagents...

Ngày tải lên: 29/10/2013, 02:15

... stabilizer use or use of less proven agents). Meta -analysis as interpretation e above example demonstrates the dangers of meta -analysis, as well as some of its benets. Ultimately, meta -analysis is not ... The limits of statistics probability of Y and a 25% probability of Z. But our brains cannot make out that dierence. If this is correct, then “many of the techniques of statistical analysis that ... meta -analysis can serve as a more or less denitive summing up of what we know, and thus it can be used to inform Bayesian methods of decision-making. 100 Chapter 13: The alchemy of meta -analysis in...

Ngày tải lên: 01/11/2013, 11:20