gas chromatography and capillary electrophoresis
gas chromatography and mass spectrometry - a practical guide - f. kitson, et al., (ap, 1996) ww
Ngày tải lên: 04/06/2014, 15:22
Gas Chromatography and Supercritical Fluid Chromatography docx
... GC and SFC: Very Basic Definitions Gas chromatography – chromatography using a gas as the mobile phase and a solid/liquid as a stationary phase – In GC, the analytes migrate in the gas phase, ... “Derivatization for Gas and Liquid Chromatography , in Ultratrace Analysis of Pharmaceuticals and Other Compounds of Interest, Wiley, 1986 Applications of Derivatization and GC in Doping Example: ... overload – N up to 12000 Types of Columns for GC GLC: Gas- liquid chromatography (partition) – most common GSC: Gas- solid chromatography (adsorption) FSWC: fused-silica wall-coated open...
Ngày tải lên: 27/06/2014, 01:20
DETERMINATION OF ORGANIC COMPOUNDS IN DRINKING WATER BY LIQUID-SOLID EXTRACTION AND CAPILLARY COLUMN GAS CHROMATOGRAPHY/MASS SPECTROMETRY pdf
... solutions 3.12 Calibration Standard (CAL) A solution prepared from the primary dilution standard solution or stock standard solutions and the internal standards and surrogate analytes The CAL ... rules and land disposal restrictions The laboratory using this method has the respons-ibility to protect the air, water, and land by minimizing and controlling all releases from fume hoods and ... (FD1 and FD2) Two separate samples collected at the same time and place under identical circumstances, and treated exactly the same throughout field and laboratory procedures Analyses of FD1 and...
Ngày tải lên: 22/03/2014, 14:20
Báo cáo khoa học: Angiotensin-converting enzyme inhibition studies by natural leech inhibitors by capillary electrophoresis and competition assay doc
... pellet and peptides were analyzed by capillary zonal electrophoresis Samples (2 nL) were injected under vacuum into a PACE 5000 capillary electrophoresis system (Beckman) equipped with a silica capillary ... capillary zonal electrophoresis, several parameters have to be established Fig shows the capillary zonal electrophoresis profile of FMRF-amide (internal standard), angiotensin II, angiotensin I and LORF ... °C and were terminated by addition of 1% trifluoroacetic acid (v/v) The internal standard FMRF-amide was added and samples were centrifuged at 20 000 g for 10 at °C Supernatants were collected and...
Ngày tải lên: 23/03/2014, 12:20
Báo cáo Y học: Characterization of heparin binding by a peptide from amyloid P component using capillary electrophoresis, surface plasmon resonance and isothermal titration calorimetry ppt
... capillary temperature thermostatting of 20 °C The capillary was rinsed after electrophoresis for with each of the following: 0.1 M NaOH, water, and electrophoresis buffer Samples were pressure injected ... v3.2 software Buffers were filtered and deoxygenated and all experiments were carried out at 25 °C CE and CE-based binding assays Immobilization of regular and scrambled AP peptides on carboxymethylated ... lM scrambled peptide and 62 lM of each of the AP-1 and the mAP-1 peptides and 41 lM of the marker peptide in 10 mM phosphate, pH 7.46 was further diluted in · 20-lL aliquots and to one aliquot...
Ngày tải lên: 31/03/2014, 23:20
Chiral Capillary Electrophoresis in Current Pharmaceutical and Biomedical Analysis potx
... namely capillary zone electrophoresis (CZE), capillary gel electrophoresis (CGE), isotachophoresis (ITP), isoelectric focusing (IEF), capillary electrokinetic chromatography (EKC) and capillary ... developed and applied for enantioseparations so far, see examples in section 2.4 2.2.2 Capillary electrochromatography Capillary electrochromatography (CEC) combines electrophoretic and chromatographic ... Chiral Capillary Electrophoresis in Current Pharmaceutical and Biomedical Analysis Figure 2.12 Separation principle of capillary electrochromatography Chiral CEC stationary phases included in capillary...
Ngày tải lên: 28/06/2014, 06:20
ADVANCED GAS CHROMATOGRAPHY – PROGRESS IN AGRICULTURAL, BIOMEDICAL AND INDUSTRIAL pdf
... mobile and stationary phase: Chromatography (C); Liquid chromatography (LC); Gas chromatography (GC); Paper chromatography (PC); Thin-layer chromatography (TLC) Column chromatography (CC) Gas- liquid ... (packed, capillary) Thus, a primary classification could be gas- solid chromatography and gas- liquid-solid chromatography Capillary columns are used mostly, but not exclusively They are the latest and ... 1998) Hyphenated gas chromatography also include coupling of gas chromatographs orthogonally - multidimensional gas chromatography (MDGC or GCGC) Hyphenated techniques in gas chromatography This...
Ngày tải lên: 28/06/2014, 14:20
GAS CHROMATOGRAPHY – BIOCHEMICALS, NARCOTICS AND ESSENTIAL OILS pot
... separation, and accurate and precise quantification of each compound in a mixture consist of thousands and thousands different components The development of the chromatography showed enormous race and ... could be increase the volatility and make possible to analyze these compounds in Gas Chromatography Using capillary column, two dimensional Gas Chromatography and some convenient detectors, around ... Luisa-Fernanda Espinosa, Silvio Pantoja and Jỹrgen Rullkửtter Chapter Fatty Acids Analysis of Photosynthetic Sulfur Bacteria by Gas Chromatography Marớa Teresa Nỳủez-Cardona Chapter 117 Gas Chromatography...
Ngày tải lên: 28/06/2014, 17:20
The development of acidic protein aptamers using capillary electrophoresis methods and their use in surface plasmon resonance
... ligands in separation techniques such as chromatography, microfluidics and capillary electrophoresis These aptamers can help facilitate the improved purification and separation of proteins and ... of Abbreviations ACE Affinity capillary electrophoresis BP Base pair BSA Bovine serum albumin CAT Catalase CE Capillary electrophoresis CEC Capillary electrokinetic chromatography CES Cholesterol ... number of sequences injected and screened using capillary electrophoresis with PDA detection at 260nm, Run buffer: 3xTGK and selection buffer 1xTGK, 333Vcm-1, 50M Random library, 13 second injection...
Ngày tải lên: 10/09/2015, 09:22
Novel methods for quantitative analysis and evaluation of effects of chronic exposure to microcystins by capillary electrophoresis and metabolomic studies
... (as in gel electrophoresis) or can be a liquid, in most cases a buffer solution In capillary electrophoresis, the medium is contained in a small capillary 40 Therefore capillary electrophoresis ... Detection in Capillary Electrophoresis Conventional high performance capillary electrophoresis (HPCE) was developed based on high performance liquid chromatography (HPLC) The most common standard detection ... all charged analytes and to uncharged analytes separated by micellar electro kinetic chromatography (MEKC) 42, 45, 46 25 1.4.4 Modes of Capillary Electrophoresis Capillary electrophoresis (CE)...
Ngày tải lên: 11/09/2015, 10:14
Development of methods to improve sensitivity and portability of capillary electrophoresis for the analysis of stabilizers and drugs 1
... GC Gas chromatography GC-MS Gas chromatography mass spectrometry HPCE High performance capillary electrophoresis HPLC High performance liquid chromatography ID Internal diameter IS Internal standard ... Cyclodextrin CE Capillary Electrophoresis CEC Capillary Electrochromatography CF Concentration factor CF-FAB Continuous-flow fast atom bombardment CGE Capillary gel electrophoresis CIEF Capillary isoelectric ... Electrokinetic Chromatography (MEKC)………….… 14~15 1.3.3 Capillary Gel Electrophoresis (CGE)………………………… 15~16 1.3.4 Capillary Isoelectric Focusing (CIEF)……………………….… 16~17 1.3.5 Capillary Electrochromatography...
Ngày tải lên: 14/09/2015, 10:36
Development of methods to improve sensitivity and portability of capillary electrophoresis for the analysis of stabilizers and drugs 2
... Analysis, England, 1997 [4] J P Landers, Handbook of Capillary Electrophoresis, USA, 1996 [5] R Kuhn, S H Kuhn, Capillary Electrophoresis: Principles and Practice, Berlin, 1993 [6] P G Righetti, Capillary ... their charges, the applied potential and EOF 3, Since the capillary applied in CE is normally empty (except Capillary Gel Electrophoresis (CGE) or Capillary Electrochromatography (CEC)), while the ... studies will be described in chapters 4, and In summary, the versatility of capillary electrophoresis was demonstrated in this study Two series of capillary electrophoresis system with different...
Ngày tải lên: 14/09/2015, 10:37
Development and application of novel capillary electrophoresis techniques for analysis of DNA fragments and organic pollutants
... CCD contactless conductivity detection CD cyclodextrin CE capillary electrophoresis CEC capillary electrochromatography CGE capillary gel electrophoresis CHES 2-(N-Cyclohexylamino)ethanesulfonic ... DNA fragments; and the second part (chapter and chapter 5) focused on the analysis of organic pollutants Several novel capillary electrophoresis (CE) techniques had been developed and applied to ... propylene GC gas chromatography GNPs gold nanopartilces HEC hydroxyethylcellulose His Histidine HP-β-CD hydroxypropyl-β-cyclodextrin HPLC high performance liquid chromatography IC ion chromatography...
Ngày tải lên: 14/09/2015, 11:40
Development of liquid phase microextraction techniques combined with chromatography and electrophoresis for applications in environmental analysis
... extraction GC gas chromatography GC-MS gas chromatography mass spectrometry HF/LPME hollow fiber-protected liquid-phase microextraction HPLC high-performance liquid chromatography LC liquid chromatography ... environmental sampling and handling, sample preparation, analyte identification and quantification (by analytical instruments), statistical evaluation and action Chromatographic and electrophoretic ... Standards and regents 104 6.2.2 Headspace liquid-phase microextraction .108 6.2.3 Chromatographic conditions 109 6.3 Results and discussion 109 6.3.1 Extraction and...
Ngày tải lên: 14/09/2015, 11:45
Analysis of intact bacteria, bacterial DNA and mutagenic alkaloids by capillary electrophoresis
... CE modes include capillary zone electrophoresis (CZE), capillary gel electrophoresis (CGE), micellar electrokinetic chromatography (MEKC), capillary electrochromatography (CEC), capillary isoelectric ... electrophoresis 1.3 Basic principles of capillary electrophoresis 1.4 Different modes of capillary electrophoresis 19 1.5 Instrumentation for capillary electrophoresis 24 1.6 Scope of research ... of electrophoresis, where the capillary wall provides the mechanical stability for the carrier electrolyte and it represents a merging of technologies derived from traditional electrophoresis and...
Ngày tải lên: 15/09/2015, 17:11
Synthesis of ionic liquids and their applications in capillary electrophoresis
... sample CE Capillary electrophoresis CEC Capillary DMIMCl 1-decyl-3-methylimidazolium chloride injection FSCE Free solution capillary electrophoresis electrochromatography CGE Capillary gel electrophoresis ... solvent and catalyst for chemical reaction………………………….………4 1.1.4 Use in capillary electrophoresis ……………………………………….6 1.2 Capillary electrophoresis … … … … … … … … … … … … 1.2.1 System and Mechanism ... micropacked liquid chromatography and capillary electrophoresis The capillary is packed with a chromatographic packing which can retain solutes by the normal distribution equilibria upon which chromatography...
Ngày tải lên: 17/09/2015, 17:19
Capillary and microchip electrophoresis for the analysis of small biomolecules
... GC: Gas chromatography conductivity detector GC-MS: Gas chromatography- mass CCD: Contact conductivity detector spectrometry CE: Capillary electrophoresis HPLC: High performance liquid CGE: Capillary ... of CE like microemulsion electrokinetic chromatography (MEEKC), capillary gel electrophoresis (CGE), non-aqueous capillary electrophoresis (NACE) and capillary isoelectric focusing (CIEF) These ... Remarks 73 Appendices 76 VII SUMMARY Capillary electrophoresis and its miniaturized counterpart, microchip capillary electrophoresis are becoming increasingly popular analytical...
Ngày tải lên: 02/10/2015, 12:56
Determination of EDTA in Water Samples by SPE-Gas Chromatography/Mass Spectrometry
... (Nishikawa and Okumura, 1995), and liquid chromatography/ tandem spetrometry (Quintana and Reemtsma, 2007) To simplify Japan’s recommended method of EDTA determination by using gas chromatography- mass ... and Environment Technology, Vol 8, No.4, 2010 chromatography (Nowack et al., 1996; Kemmei et al., 2009), ion chromatography/ mass spectrometry (Bauer et al., 1999; Knepper et al., 2005), gas chromatography/ mass ... spectrometry analysis Gas chromatography was carried out by using HP6890 series gas chromatography system (Hewlett Packard, Wilmington, DE, USA) with an HP6890 series auto sampler and split/splitless...
Ngày tải lên: 05/09/2013, 10:15