1
|
Singh SM, Furman R, Singh RK, Balakrishnan G, Chennamsetty N, Tao L, Li Z. Size exclusion chromatography for the characterization and quality control of biologics. J LIQ CHROMATOGR R T 2021. [DOI: 10.1080/10826076.2021.1979582] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Surinder M. Singh
- Analytical Development and Attribute Sciences, New Brunswick, NJ, USA
| | - Ran Furman
- Analytical Development and Attribute Sciences, New Brunswick, NJ, USA
| | - Rajesh K. Singh
- Analytical Development and Attribute Sciences, New Brunswick, NJ, USA
| | | | | | - Li Tao
- Analytical Development and Attribute Sciences, New Brunswick, NJ, USA
| | - Zhengjian Li
- Analytical Development and Attribute Sciences, New Brunswick, NJ, USA
| |
Collapse
|
2
|
Xu L, Wang H, Yi J, Meng M, Sun J, Yin X, Zhou X, Yin J, Wang Y, Hou J, Wei Q, Gong Y. Preparation and application of 3-(methylene-bis(1',4'-phenylene)dicarbamate-2,3-bis(3,5-dimethylphenylcarbamate)-amylose)-2-hydroxylpropoxy-propylsilyl-appended silica particles as chiral stationary phase for HPLC. J Chromatogr Sci 2021; 60:243-249. [PMID: 34160007 DOI: 10.1093/chromsci/bmab073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 11/19/2020] [Accepted: 05/29/2021] [Indexed: 11/13/2022]
Abstract
3-(Methylene-bis(1',4'-phenylene) dicarbamate-2,3-bis(3,5-dimethylphenylcarbamate)-amylose)-2-hydroxylpropoxy-propylsilyl-appended silica particles (DMP-AM-HPS), a new type of 2, 3-regioselectively substituted amylose-immobilized chiral stationary phase (CSP) for high-performance liquid chromatography (HPLC), have been prepared by treatment of 3-(2,3-dihydroxyl-propoxy)-propylsilyl silica particles with 2,3-bis(3,5-dimethylphenylcarbamate)-amylose and 4,4'-diphenylmethane diisocyanate. The chemical characterization of the bonded particles DMP-AM-HPS has been carried out by elemental analysis and Fourier transform infrared spectroscopic analysis. The chromatographic performance of the DMP-AM-HPS has been evaluated in HPLC under multi-mode conditions including normal phase, reversed phase, and polar organic mobile phase conditions. The DMP-AM-HPS phase has exhibited excellent selectivity in separating enantiomers of a wide range of chiral drug compounds. The result also suggests that unsubstituted C6 hydroxyl groups in the regioselectively substituted amylose not only have important contributions to chiral recognitions and chromatographic separations, but also allow the DMP-AM-HPS to be used as a new type of amylose-immobilized CSP under multi-mode mobile phase conditions in HPLC.
Collapse
Affiliation(s)
- Lu Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, P.R. China
| | - Hui Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, P.R. China
| | - Jingxuan Yi
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, P.R. China
| | - Min Meng
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, P.R. China
| | - Jiahui Sun
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, P.R. China
| | - Xiaoxing Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, P.R. China
| | - Xueyan Zhou
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, P.R. China
| | - Jiale Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, P.R. China
| | - Yinan Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, P.R. China
| | - Jasmine Hou
- ChiralTek Pte Ltd, 192 Westwood Crescent, 648559, Singapore
| | - Qunli Wei
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, P.R. China
| | - Yinhan Gong
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, P.R. China.,ChiralTek Pte Ltd, 192 Westwood Crescent, 648559, Singapore
| |
Collapse
|
3
|
Huang TY, Chi LM, Chien KY. Size-exclusion chromatography using reverse-phase columns for protein separation. J Chromatogr A 2018; 1571:201-212. [DOI: 10.1016/j.chroma.2018.08.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 08/03/2018] [Accepted: 08/09/2018] [Indexed: 01/02/2023]
|
4
|
Use of Cyclodextrin as a Novel Agent in the SEC-HPLC Mobile Phase to Mitigate the Interactions of Proteins or Peptide or their Impurities with the Residual Silanols of Commercial SEC-HPLC Columns with Improved Separation and Resolution. Pharm Res 2018; 35:168. [DOI: 10.1007/s11095-018-2446-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/14/2018] [Indexed: 10/28/2022]
|
5
|
Improving Proteome Coverage by Reducing Sample Complexity via Chromatography. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 919:83-143. [DOI: 10.1007/978-3-319-41448-5_5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
6
|
Bouvier ES, Koza SM. Advances in size-exclusion separations of proteins and polymers by UHPLC. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.08.002] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
7
|
Bernal C, Sierra L, Mesa M. Design of β-galactosidase/silica biocatalysts: Impact of the enzyme properties and immobilization pathways on their catalytic performance. Eng Life Sci 2013. [DOI: 10.1002/elsc.201300001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Claudia Bernal
- Grupo Ciencia de los Materiales; Instituto de Química; Universidad de Antioquia; Medellín Colombia
| | - Ligia Sierra
- Grupo Ciencia de los Materiales; Instituto de Química; Universidad de Antioquia; Medellín Colombia
| | - Monica Mesa
- Grupo Ciencia de los Materiales; Instituto de Química; Universidad de Antioquia; Medellín Colombia
| |
Collapse
|
8
|
Bernal C, Sierra L, Mesa M. Improvement of thermal stability of β-galactosidase from Bacillus circulans by multipoint covalent immobilization in hierarchical macro-mesoporous silica. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcatb.2012.05.023] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
9
|
Hong P, Koza S, Bouvier ESP. Size-Exclusion Chromatography for the Analysis of Protein Biotherapeutics and their Aggregates. J LIQ CHROMATOGR R T 2012; 35:2923-2950. [PMID: 23378719 PMCID: PMC3556795 DOI: 10.1080/10826076.2012.743724] [Citation(s) in RCA: 320] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
In recent years, the use and number of biotherapeutics has increased significantly. For these largely protein-based therapies, the quantitation of aggregates is of particular concern given their potential effect on efficacy and immunogenicity. This need has renewed interest in size-exclusion chromatography (SEC). In the following review we will outline the history and background of SEC for the analysis of proteins. We will also discuss the instrumentation for these analyses, including the use of different types of detectors. Method development for protein analysis by SEC will also be outlined, including the effect of mobile phase and column parameters (column length, pore size). We will also review some of the applications of this mode of separation that are of particular importance to protein biopharmaceutical development and highlight some considerations in their implementation.
Collapse
|
10
|
Wang F, Guan Y, Zhang S, Xia Y. Hydrophilic modification of silica–titania mesoporous materials as restricted-access matrix adsorbents for enrichment of phosphopeptides. J Chromatogr A 2012; 1246:76-83. [DOI: 10.1016/j.chroma.2012.02.050] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 02/16/2012] [Accepted: 02/17/2012] [Indexed: 10/28/2022]
|
11
|
Bolivar JM, Nidetzky B. Oriented and selective enzyme immobilization on functionalized silica carrier using the cationic binding module Zbasic2: Design of a heterogeneous D-amino acid oxidase catalyst on porous glass. Biotechnol Bioeng 2012; 109:1490-8. [DOI: 10.1002/bit.24423] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Revised: 12/10/2011] [Accepted: 12/19/2011] [Indexed: 11/08/2022]
|
12
|
Athanasekou CP, Romanos GE, Kordatos K, Kasselouri-Rigopoulou V, Kakizis NK, Sapalidis AA. Grafting of alginates on UF/NF ceramic membranes for wastewater treatment. JOURNAL OF HAZARDOUS MATERIALS 2010; 182:611-623. [PMID: 20638782 DOI: 10.1016/j.jhazmat.2010.06.076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2009] [Revised: 06/17/2010] [Accepted: 06/18/2010] [Indexed: 05/29/2023]
Abstract
The mechanism of heavy metal ion removal in processes involving multi-layered tubular ultrafiltration and nanofiltration (UF/NF) membranes was investigated by conducting retention experiments in both flow-through and cross-flow modes. The prospect of the regeneration of the membranes through an acidic process was also examined and discussed. The UF/NF membranes were functionalised with alginates to develop hybrid inorganic/organic materials for continuous, single pass, wastewater treatment applications. The challenge laid in the induction of additional metal adsorption and improved regeneration capacity. This was accomplished by stabilizing alginates either into the pores or on the top-separating layer of the membrane. The preservation of efficient water fluxes at moderate trans-membrane pressures introduced an additional parameter that was pursued in parallel to the membrane modification process. The deposition and stabilization of alginates was carried out via physical (filtration/cross-linking) and chemical (grafting) procedures. The materials developed by means of the filtration process exhibited a 25-60% enhancement of their Cd(2+) binding capacity, depending on the amount of the filtered alginate solution. The grafting process led to the development of alginate layers with adequate stability under acidic regeneration conditions and metal retention enhancement of 25-180%, depending on the silane involved as grafting agent and the solvent of silanisation.
Collapse
Affiliation(s)
- C P Athanasekou
- Institute of Physical Chemistry, NCSR Demokritos, 15310 Agia Paraskevi, Attikis, Greece
| | | | | | | | | | | |
Collapse
|
13
|
Athanasekou CP, Romanos GE, Sapalidis AA, Kanellopoulos NK. Ceramic-Supported Alginate Adsorbent for the Removal of Heavy Metal Ions. ADSORPT SCI TECHNOL 2010. [DOI: 10.1260/0263-6174.28.3.253] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
| | - George E. Romanos
- Institute of Physical Chemistry, NCSR Demokritos, 153 10 Aghia Paraskevi Attikis, Greece
| | - Andreas A. Sapalidis
- Institute of Physical Chemistry, NCSR Demokritos, 153 10 Aghia Paraskevi Attikis, Greece
| | - Nick K. Kanellopoulos
- Institute of Physical Chemistry, NCSR Demokritos, 153 10 Aghia Paraskevi Attikis, Greece
| |
Collapse
|
14
|
Barbot C, Czerwinski K, Buckau G, Kim JI, Moulin V, Vial M, Pieri J, Durand JP, Goudard F. Characterization of a humic gel synthesized from an activated epoxy silica gel. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2002.90.4_2002.211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
SummaryPurified humic acid has been covalently bound on activated epoxy silica gel particles. Determination of physical properties and chemical properties was conducted in order to characterize the material at different stages of the preparation. FTIR spectra and the PEC of the surface bound humic acid is very similar to that of humic acid starting material. This shows that the humic acid was not deteriorated during the surface binding process. This humic gel can be used as an analogue for sediment associated humic acid, with the advantage that covalently bound humic acid does not desorb, and thus allows for simple species separation between non-complexed and humic bound metal ions in batch and column experiments.
Collapse
|
15
|
Affiliation(s)
- Yu Xin
- a Center for Molecular Science, Institute of Chemistry, The Chinese Academy of Science , Beijing, 100080, P. R. China
| | - Zhao Rui
- a Center for Molecular Science, Institute of Chemistry, The Chinese Academy of Science , Beijing, 100080, P. R. China
| | - Liu Guoquan
- b Center for Molecular Science, Institute of Chemistry, The Chinese Academy of Science , Beijing, 100080, P. R. China
| |
Collapse
|
16
|
Manaf I, Mascia L. Compatibilization of water borne poly(ethylene oxide)-silica hybrids. ADVANCES IN POLYMER TECHNOLOGY 2004. [DOI: 10.1002/adv.20001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
17
|
Porsch B, Hillang I, Karlsson A, Sundelöf LO. Distribution analysis of cellulose acetate phthalate by ion-exclusion-moderated size exclusion chromatography. Carbohydr Polym 2002. [DOI: 10.1016/s0144-8617(01)00311-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
18
|
Porsch B, Andersson M, Wittgren B, Wahlund KG. Molecular mass distribution analysis of ethyl(hydroxyethyl)cellulose by size-exclusion chromatography with dual light-scattering and refractometric detection. J Chromatogr A 2002; 946:69-81. [PMID: 11873984 DOI: 10.1016/s0021-9673(01)01572-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Dual low-angle light scattering and refractometric detection coupled to size-exclusion chromatography provided proof for the presence of a low amount of stable aggregates/particles in ethyl(hydroxyethyl)cellulose. Unlike the correct size-exclusion chromatographic behavior of the parent polysaccharide itself, the aggregates exhibit variable size-dependent weak retention as a function of flow-rate and of ionic strength of the aqueous mobile phase. Therefore, determination of the molecular mass of non-aggregated polymer is possible in aqueous mobile phase containing 0.1 M NaCl under conditions at which aggregates are completely adsorbed on the column packing irrespective of the flow-rate used. Flow-rate and ionic strength-dependent variations of aggregate behavior as well as model size-exclusion experiments with latex particles indicate that they partly carry a minute charge and have a compact structure. Their weak retention under the separation conditions used suggests a difference in their surface chemistry when compared with the dissolved polymer coils which exhibit a correct size-exclusion behavior.
Collapse
Affiliation(s)
- Bedrich Porsch
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague.
| | | | | | | |
Collapse
|
19
|
|
20
|
Porsch B, Hillang I, Karlsson A, Sundelöf LO. Ion-exclusion controlled size-exclusion chromatography of methacrylic acid-methyl methacrylate copolymers. J Chromatogr A 2000; 872:91-9. [PMID: 10749490 DOI: 10.1016/s0021-9673(99)01262-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Controlled ion-exclusion allows compensation of hydrophobic adsorption in size-exclusion chromatography of negatively charged methacrylic acid-methyl methacrylate (Eudragit) polymers using methanol as a mobile phase. Properly selected low-ionic-strength conditions below 5 mM LiCl provide correct separation in the size-exclusion mode. Possible disturbing effects, mainly related to light scattering, under low-salt conditions are discussed and shown to be negligible if on-line concentration-light scattering detection is used. The absence of these disturbances is checked by a comparison of experiments performed in methanol containing 1.25 mM and 2.5 mM LiCl. Molecular mass averages and distributions identical within the experimental error are obtained.
Collapse
Affiliation(s)
- B Porsch
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague
| | | | | | | |
Collapse
|
21
|
Wu N, Shen Y, Lee ML. Fast Solvating Gas Chromatography of Environmentally Important Compounds Using Polymer-Encapsulated Silica Particles. ACTA ACUST UNITED AC 1999. [DOI: 10.1002/(sici)1521-4168(19991001)22:10<541::aid-jhrc541>3.0.co;2-q] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
22
|
Félix G, Descorps V. Stereochemical resolution of racemates, in HPLC, using a chiral stationary phase based upon immobilized α-chymotrypsin. I. Structural chiral separations. Chromatographia 1999. [DOI: 10.1007/bf02466900] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
23
|
Shao X, Shen Y, O'Neill K, Lee ML. Capillary electrophoresis using diol-bonded fused-silica capillaries. J Chromatogr A 1999; 830:415-22. [PMID: 10048200 DOI: 10.1016/s0021-9673(98)00851-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this paper, 3-glycidoxypropyltrimethoxysilane was used to produce diol-bonded capillaries at room temperature for capillary electrophoresis (CE). A variety of standard reference compounds and authentic biological samples including ribonucleotides, peptides and proteins were used to test the columns. It was found that greatly suppressed electroosmotic flow was measured over a pH range of 3-10. Lower than 1.6% relative standard deviation (> 10 runs) in migration time was observed for the analysis of test proteins. For real samples of ribonucleotides in tumor cell extracts, approximately 1 million theoretical plates and excellent peak shapes were obtained. The high column efficiency and symmetrical peaks allowed the separation of samples with only 0.6% maximum difference in migration times. The diol-bonded fused-silica capillary columns were stable when used in a pH range of 2-8 under typical CE conditions. The column preparation method involved a simple dynamic coating procedure at room temperature, greatly simplifying the more typical static coating methods that require vacuum pumps and ovens.
Collapse
Affiliation(s)
- X Shao
- Department of Microbiology, Brigham Young University, Provo, UT 84602-5700, USA
| | | | | | | |
Collapse
|
24
|
|
25
|
Variables analysis in the gelation of alkoxysilane solutions for the production of polyimide-silica hybrids. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 1998. [DOI: 10.1016/s0928-4931(98)00040-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
26
|
PEREIRA G, GUISÁN J, GIORDANO R. MULTI-POINT IMMOBILIZATION OF PENICILLIN G ACYLASE ON SILICA-GLYOXYL: INFLUENCE OF THE DEGREE OF ACTIVATION. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 1997. [DOI: 10.1590/s0104-66321997000400005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
27
|
Porsch B, Nilsson S, Sundelöf LO. Association of Ethyl(hydroxyethyl)cellulose Solutions. Macromolecules 1997. [DOI: 10.1021/ma970171x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- B. Porsch
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague 6, Czech Republic
| | - S. Nilsson
- Physical Pharmaceutical Chemistry, BMC, Uppsala, Sweden
| | | |
Collapse
|
28
|
Affiliation(s)
- Howard G. Barth
- DuPont Company, Central Research and Development, Experimental Station, P.O. Box 80228, Wilmington, Delaware 19880-0228, and Rockland Technologies, Inc., 538 First State Boulevard, Newport, Delaware 19804
| | - Barry E. Boyes
- DuPont Company, Central Research and Development, Experimental Station, P.O. Box 80228, Wilmington, Delaware 19880-0228, and Rockland Technologies, Inc., 538 First State Boulevard, Newport, Delaware 19804
| | - Christian Jackson
- DuPont Company, Central Research and Development, Experimental Station, P.O. Box 80228, Wilmington, Delaware 19880-0228, and Rockland Technologies, Inc., 538 First State Boulevard, Newport, Delaware 19804
| |
Collapse
|
29
|
Shen Y, Lee ML. Silica surface interactions of diol-bonded phases in packed capillary column supercritical fluid chromatography. ACTA ACUST UNITED AC 1996. [DOI: 10.1002/(sici)1520-667x(1996)8:6<413::aid-mcs6>3.0.co;2-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
30
|
Activated silica supports for preparation of Chromatographic sorbents. A comparative study of silicas containing attached epoxy, tosyloxy and halogen groups. J Chromatogr A 1996. [DOI: 10.1016/0021-9673(95)00748-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
31
|
Nilsson S, Sundelöf LO, Porsch B. On the characterization principles of some technically important water soluble non-ionic cellulose derivatives. Carbohydr Polym 1995. [DOI: 10.1016/0144-8617(95)00058-5] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
32
|
Pesek JJ, Matyska MT, Hemphälä H, Christensen P. High Performance Liquid Chromatographic Characterization of Diol Bonded Phases Synthesized via a Hydride Intermediate. ACTA ACUST UNITED AC 1995. [DOI: 10.1080/10826079508009305] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
33
|
Chapter 8 Chemical modification of silica: applications and procedures. ACTA ACUST UNITED AC 1995. [DOI: 10.1016/s0167-2991(06)81516-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
|
34
|
Pesek JJ, Matyska MT. Synthesis and spectrometric characterization of a true diol bonded phase. J Chromatogr A 1994. [DOI: 10.1016/0021-9673(94)00815-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
35
|
Porsch B, Sundelöf LO. Size-exclusion chromatography and dynamic light scattering of dextrans in water: Explanation of ion-exclusion behaviour. J Chromatogr A 1994. [DOI: 10.1016/0021-9673(94)80333-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|