lius nlp handbook chapter sentiment analysis and subjectivity

Ngày tải lên: 20/02/2014, 16:20

Ngày tải lên: 20/02/2014, 05:20

Ngày tải lên: 23/03/2014, 14:20

... many cases of analysis of alkyl nitrites in the  eld of forensic toxicology. In this chapter, the methods for analysis of the compounds by headspace (HS)-gas chromatography (GC) and liquid-liquid ... 0.05 mL of isobutyl nitrite or isobutyl alcohol standard solution at various concentrations and 0.2 mL distilled water are placed in the vial and mixed.  e following procedure is exactly the ... of isobutyl nitrite and isobutyl alcohol in liquid specimens were 62 ng and 1.9 àg/mL, respectively [7]. > Figure 8.2 shows EI mass spectra of isobutyl nitrite (A) and isobutyl alcohol...

Ngày tải lên: 18/10/2013, 00:15

... products and related compounds in soil. J Chromatogr 589:287–294 7) Purdon JG, Pagotto JG, Miller RK (1989) Preparation, stability and quantitative analysis by gas chromatography and gas chromatography-electron ... environmental and biological samples using gas chromatography/negative-ion chemical ionization mass spectrometry and tandem mass spectrometry. J Mass Spectrom 30:1133–1143 623VX and its decomposition ... world with a shock and anxiety. VX is easily hydrolyzed under alkaline conditions, and also in the environmental water and soil to produce ethylmethylphosphonic acid (EMPA) and further methylphosphonic...

Ngày tải lên: 18/10/2013, 00:15

... 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 in plant specimens a Reagents and ... Methods for analysis of cannabis and its components. In: The Pharmaceutical Society of Japan (ed) Standard Methods of Chemical Analysis in Poisoning – With Commentaries, 4th edn., Nanzando, Tokyo, ... mass spectra of ∆ 9 -THC, CBD, CBN and 5α-cholestane. GC analysis of cannabinoids in plant specimens 192 Cannabinoids and their metabolites  e Substance Abuse and Mental Service Administration...

Ngày tải lên: 24/10/2013, 19:15

... HPLC analysis Reagents and their preparation ã Standard solutions of morphine for a calibration curve (2, 6 and 20 àg/mL): see “Reagents and their preparation”, above of GC and GC/MS analysis ... opiate analysis. For HPLC analysis of the conjugated forms of opiates, the authentic standards of mor- phine-3-glucuronide (M-3-G) and morphine-6-glucuronide (M-6-G) are necessary. In U.S.A. and ... ionization mode: EI; electron energy: 70 eV. GC and GC/MS analysis 204 Morphine and its analogues As a result of analysis of 203 fatal cases with morphine and heroin, three parameters were reported...

Ngày tải lên: 24/10/2013, 19:15

... methods by ion chlomatog- raphy [7] and GC/MS [8] were reported. In this chapter, a method for GC analysis of nitrate and nitrite in blood using wide-bore and medium-bore capillary columns a ... nitrate and nitrite in drinking water: an update on methe- moglobinemia occurrence and reproductive and developmental toxicity. Regul Toxicol Pharmacol 23:35–43 Derivatization reaction for nitrite and ... wide-bore and medium-bore capillary columns. With the medium-bore capillary column, a big and broad peak due to mesitylene appears.  e detection limits are about 0.3 and 0.1 àg/mL for wide-bore and...

Ngày tải lên: 24/10/2013, 19:15

... methylphosphono- thiolate 619 OHMA 181 OHnorBZP 171, 179, 183 oleandrigenin 519 oleander poisoning 524 oleander toxins 519 oleandrin 519, 521, 523, 525 on-column derivatization 238 on-column ... nitrite, nitrate, chlorate, chlorite, alkyl nitrites, nitroglycerin, aniline and other compounds. In 1938, Evelyn and Malloy [1] had devised a photoelectric method for determination of Met-Hb ... ferricynade to be added to the Hb iron. In this chapter, a simple procedure of the modi ed spectrophotometric method for Met-Hb is brie y described. Reagents and their preparation ã Potassium ferricyanide,...

Ngày tải lên: 24/10/2013, 19:15

... north and south American continents. Fortunately, in Japan, its abuse is not so many; but it cannot be overlooked. In this chapter, the methods of extraction a and GC/MS analysis for cocaine and ... subjected to GC/MS analysis. ii. Extraction from blood and derivatization i. A 1-mL volume of blood (plasma) is mixed with 100 àL IS solution and 5 mL methanol, vortex-mixed for 1 min and centrifuged ... dissolved in 100 àL PFPA and 50 µL HFIP, capped airtightly and heated at 70 °C for 30 min for derivatization. A 12 àL aliquot of it is subjected to GC/MS analysis. Cocaine and its metabolites 215 time...

Ngày tải lên: 29/10/2013, 01:15

... [1–4], HPLC [5–7] 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 ... blood, 43 and 34 àg/g in the liver, and not detectable and 4.5 àg/mL in urine, respectively [12].  e blood concentrations of dextromethorphan, which has been used as IS in this chapter, were ... extracted from whole blood and urine. In this system, ions at m/z 271 plus 214 (IS) and at m/z 285 plus 217 (pentazocine) were used at the retention times of 3–7 min and 7–8 min, respectively....

Ngày tải lên: 29/10/2013, 02:15

... er the intake and lasts for 8–12 h. In this chapter, a detection method by TLC and con rmatory analysis by GC/MS for LSD are presented. Reagents and their preparation ã LSD can be obtained ... subjected to further analysis. TLC analysis Analytical conditions TLC plate: a usual silica gel plate, for example, Kieselgel (0.25 àm thickness, Merck, Darm- stadt, Germany and other manufacturers). Developing ... of 4 % potassium iodide solution and 24 mL distilled water. 226 Lysergic acid diethylamide (LSD) Pretreatments LSD is seized in the forms of tablets, capsules and paper sheets.  e latter is...

Ngày tải lên: 08/11/2013, 01:15

... amphetamines and/ or other pharmaceutical agents, such as ca eine and ketamine [4, 5]. Structures of MDA and its analogues. ⊡ Figure 7.1 231 Reagents and their preparation ã MDA, MDMA and MDEA ... procedures for GC/MS and LC/MS analyses of MDAs in the forms of tablets and those for GC/MS analysis of MDAs and their main metabolites 4-hydroxy-3-me- thoxymethamphetamine ( HMMA) and 4-hydroxy-3-methoxyamphetamine ... the Greek and Latin origins; “en”, “gen” and “tactus” mean “within”, “produce” and “touch”, respectively.  erefore, the word means “to produce a touching within” [1]. b) MDA, MDMA and MDEA...

Ngày tải lên: 08/11/2013, 01:15

... vitreous humor and urine than in blood. Villain et al. [21] and Elliott [31] have tentatively set positive cuto limits of GHB at 50 and 30 àg/mL for postmortem blood, and 10 and 20 àg/mL for ... CE [22]. In this chapter, a detailed procedure for simple GC/MS analysis of PCP in blood and urine is pre- sented. Structures of PCP and pethidine (IS). ⊡ Figure 8.1 Reagents and their preparation i. ... are found in blood and urine. In this chapter, a simple and reliable headspace gas chromatographic (GC) method for de- tecting GHB from body  uids is described a . Reagents and their preparation Sodium...

Ngày tải lên: 08/11/2013, 01:15

Ngày tải lên: 14/12/2013, 12:15

... TIC and MCs for 5 phenothiazine drugs obtained by GC/MS. Panels A and B show a TIC and an MC for the authentic compounds, respectively; panels C and D those for extracts of human whole blood and ... sensitiv- ity and speci city, it is not a detector commonly available. In this chapter, the methods of qualitative and quantitative analysis of phenothiazines in human body  uids using useful GC/MS and ... Positive -and negative-ion mass spectrometry and rapid clean-up of 19 phenothiazines. Forensic Sci Int 44:93–105 6) The Pharmaceutical Society of Japan (ed) (1992) Standard Methods of Chemical Analysis...

Ngày tải lên: 15/12/2013, 12:15

... (HP) and reduced haloperidol (RHP); m/z 268: bromperidol (BP, IS) and reduced bromperidol (RBP). ⊡ Figure 2.2 HPLC and LC/MS analysis 269 Notes a) When GC/MS, HPLC and LC/MS are compared for analysis ... solution ã As internal standard (IS) c , bromperidol (500 ng/mL in 0.1 M hydrochloric acid solution) is used for analysis of haloperidol, and vise versa. ã Preparation of standard solutions: haloperidol ... bromperidol, moperone and  oropipamide; but for timiperone and spiperone, satis- factory peaks cannot be obtained. TICs and SIM chromatograms of haloperidol, bromperidol and their reduced forms...

Ngày tải lên: 15/12/2013, 12:15

... Japan. Poisoning cases, and toxic and fatal concentrations 274 Tricyclic and tetracyclic antidepressants ⊡ Figure 3.2 TICs for tricyclic and tetracyclic antidepressants and carbamazepine obtained ... in- cluded in this chapter. GC/MS analysis Reagents and their preparation ã Amitriptyline, carbamazepine, clomipramine, desipramine, imipramine, maprotiline, mi- anserin, nortriptyline and trimipramine ... Tricyclic and tetracyclic antidepressants by Akira Namera and Mikio Yashiki Introduction Many of antidepressants exert their e ects by inhibiting the reuptake of norepinephrine and serotonin and...

Ngày tải lên: 15/12/2013, 12:15

... simultaneous analysis of 22 kinds of benzodiazepines listed in > Table 4.1 is described. In addition, the LC/MS analysis of triazolam, and its metabolites 4-hydroxy- triazolam and α-hydroxytriazolam ... 4-hydroxytriazolam and α-hydroxytriazolam and 50 ng of alprazolam were added to 1 mL blood plasma. ⊡ Figure 4.3 286 Benzodiazepines chlordizepoxide, between  utoprazepam and bromazepam and between ... 21: triazolam, 22: brotizolam. ⊡ Figure 4.1 GC/MS analysis of benzodiazepines in blood and urine 287 In the analysis of benzodiazepines by GC and GC/MS, the decomposition of drugs due to heat...

Ngày tải lên: 15/12/2013, 12:15

Ngày tải lên: 15/12/2013, 12:15