Gas Chromatography Mass Spectrometry doc

... methyl ester.

Ngày tải lên: 10/08/2014, 17:22

... Milli-Q water was used in all experiments. Gas chromatography/ mass spectrometry analysis Gas chromatography was carried out by using HP6890 series gas chromatography system (Hewlett Packard, ... 2010 - 348 - chromatography (Nowack et al., 1996; Kemmei et al., 2009), ion chromatography/ mass spectrometry (Bauer et al., 1999; Knepper et al., 2005), gas chromato...

Ngày tải lên: 05/09/2013, 10:15

... silica capillary column of a gas chromatography/ mass spectrometry (GC/MS) system. Compounds eluting from the GC column are identified by comparing their measured mass spectra and retention times ... quadrupole mass spectrometer. Table 8 lists accuracy and precision data from replicate determinations of method analytes in tap water using liquid-solid cartridge extractions and the i...

Ngày tải lên: 22/03/2014, 14:20

... 345:436-438. 7. Cap P, Chladek J, Pehal F, Maly M, Petru V, Barnes PJ, Montuschi P: Gas chromatography/ mass spectrometry analysis of exhaled leukotrienes in asthmatic patients. Thorax 2004, 59:465-470. 8. ... Mondino C, Chiarotti M: Ion trap liquid chromatography/ tandem mass spectrometry analysis of leukotriene B4 in exhaled breath condensate. Rapid Com- mun Mass Spectrom 2004...

Ngày tải lên: 20/06/2014, 00:20

... peptide mass fingerprint from MALDI-TOF MS showed m ⁄ z values corres- ponding to all eight theoretical peptides plus the peptide of the truncated protein (residues 1–13, TPDVSSALDKLKE, theoretical mass ... reflectron mode and in a QSTAR o-MALDI mass spectrometer (Applied Biosystems Inc., Bellarica, CA, USA). MS ⁄ MS analysis was conducted with the QSTAR o-MALDI mass spectrometer. The T...

Ngày tải lên: 19/02/2014, 05:20

... mass spectrometry for protein interaction analysis: application to a calmodu- lin ⁄ target peptide complex. Anal Chem 77, 495–503. 19 Tang XT, Munske GR, Siems WF & Bruce JE (2005) Mass spectrometry ... stored at )20 °C until MS analysis. High mass MALDI-TOF MS High -mass MALDI-TOF mass spectra of the intact protein complexes were obtained using a MALDI-TOF mass spec- trome...

Ngày tải lên: 15/03/2014, 00:20

... (Poole, Dorset, UK). Liquid chromatography- mass spectrometry (LC-MS) analysis Analysis was carried out on a HP 1100 (Hewlett-Packard, Wilmington, DE, USA) liquid chromatography coupled with an ... identity of each fragment was obtained by mass mapping from the known amino acid sequence. Given the good mass accuracy (0.01%), for any particular observed mass a match could normally...

Ngày tải lên: 16/03/2014, 18:20

... appearance of the mass spectra being generated. 12 Liquid Chromatography Mass Spectrometry 2.2.3 Mobile Phase Unlike gas chromatography, in which the mobile phase, i.e. the carrier gas, plays no ... combination of chromatography and mass spectrometry (MS) is a subject that has attracted much interest over the last forty years or so. The combina- tion of gas chromatography...

Ngày tải lên: 11/04/2014, 06:58

... Group, LLC 23 2 MASS SPECTROMETRY 1. Introduction 23 2. Analyte ionization 23 3. Information from mass spectrometry 27 4. Mass analysis 32 5. References 45 1. Introduction Mass spectrometry (MS) ... coupling of liquid chromatography and mass spectrometry (LC–MS). These research efforts were mainly inspired by the great success of combined capillary gas chromatography...

Ngày tải lên: 04/06/2014, 15:33

... disease, Biomater ials 31 (2010) 4179–4185. [14] T.J. Novak, R. Helmy, I. Santos, Liquid chromatography mass spectrometry using the hydrogen/deuterium exchange reaction as a tool for impurity identi- fication ... Analysis of curcuminoids by positive and negative electrospray ionization and tandem mass spectrometry, Rapid Commun. Mass Spectrom. 20 (2006) 1001–1012. [18] F. Payton, P. S...

Ngày tải lên: 01/07/2014, 13:22