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Yao C, Anderson JL. Retention characteristics of organic compounds on molten salt and ionic liquid-based gas chromatography stationary phases. J Chromatogr A 2009; 1216:1658-712. [DOI: 10.1016/j.chroma.2008.12.001] [Citation(s) in RCA: 125] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2008] [Revised: 11/28/2008] [Accepted: 12/02/2008] [Indexed: 11/29/2022]
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2
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Conder JR, Gillies RJ, Oweimreen GA, Shihab AKI. Wetting transition in alkane liquids on silanised diatomaceous gas chromatographic supports. J Chromatogr A 1998. [DOI: 10.1016/s0021-9673(98)00807-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Grob K, Li Z. Introduction of water and water-containing solvent mixtures in capillary gas chromatography. J Chromatogr A 1989. [DOI: 10.1016/s0021-9673(00)91322-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Woolley CL, Tarbet BJ, Markides KE, Bradshaw JS, Lee ML, Bartle KD. Static coating of phenyl and biphenyl polysiloxane stationary phases on small-diameter capillary columns. ACTA ACUST UNITED AC 1988. [DOI: 10.1002/jhrc.1240110129] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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6
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Xu B, Vermeulen N. Preparation of wall-coated open-tubular capillary columns for gas chromatography. J Chromatogr A 1988. [DOI: 10.1016/s0021-9673(01)84504-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Blum W. Preparation of inert glass capillary columns coated with UCON 50 HB-5100. An attempt to rediscover industrially produced α, ω-polyethylene/polypropyleneglycol ethers as stationary phases in capillary gas chromatography. ACTA ACUST UNITED AC 1987. [DOI: 10.1002/jhrc.1240100107] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Affiliation(s)
- H Traitler
- Nestlé Research Center, Nestec Ltd., Lausanne, Switzerland
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The influence of the pre-treatment of glass capillary columns on the properties of N-octadecanol films used as a stationary phase. Chromatographia 1986. [DOI: 10.1007/bf02268766] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Woolley CL, Markides KE, Lee ML, Bartle KD. Deactivation of small diameter fused silica capillary columns with organosilicon hydrides. ACTA ACUST UNITED AC 1986. [DOI: 10.1002/jhrc.1240090904] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Ogden M, McNair H. Characterization of fused-silica capillary tubing by contact angle measurements. J Chromatogr A 1986. [DOI: 10.1016/s0021-9673(01)87006-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Schurig V, Weber R. Use of glass and fused-silica open tubular columns for the separation of structural, configurational and optical isomers by selective complexation gas chromatography. J Chromatogr A 1984. [DOI: 10.1016/s0021-9673(00)95097-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Sassolas A, Lagarde M, Guichardant M, Quincy C, Dechavanne M. Plasma lipoproteins and fatty acid composition after "minipill". Contraception 1983; 28:357-68. [PMID: 6421540 DOI: 10.1016/0010-7824(83)90038-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A study of the effect of a low-dose oral contraceptive, Adepal (ethinyl estradiol and levonorgestrel, 30 and 150 micrograms on the 5th to 12th, 40 and 200 micrograms on the 13th to 28th, respectively) on the blood lipids, lipoproteins and fatty acid composition has been conducted on 13 young women before and after six months of treatment. All together, total cholesterol concentration did not vary; however, the high cholesterol values decreased whereas the low cholesterol values increased with the pill. Triglyceride levels increased significantly (p less than 0.001). High density lipoprotein (HDL)-cholesterol decreased clearly (p less than 0.001) regardless of the cholesterol value at the beginning; low and very low density lipoprotein (LDL + VLDL)-cholesterol increased slightly, as well as the apoprotein B (Apo B) concentration (p less than 0.05). The lipoprotein electrophoresis showed intermediate bands (IDL) in 5/12 of the women after treatment. The three major classes of lipoprotein showed some variations in the fatty acid composition after the oral contraceptive; in any lipid class from any lipoprotein, the linoleic (18: 1 omega 6), arachidonic (20: 4 omega 6) and eicosapentaenoic (20: 5 omega 3) acids decreased whereas the palmitic (16: 0) and oleic (18: 1 omega 9) acids increased. Our results suggest that a low-dose contraceptive like Adepal produces, nevertheless, some significative modifications of plasma lipids and lipoproteins.
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15
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Guichardant M, Lagarde M. Phospholipid analysis and fatty acid content in platelets by the combination of high-performance liquid chromatography and glass capillary gas--liquid chromatography. JOURNAL OF CHROMATOGRAPHY 1983; 275:400-6. [PMID: 6619244 DOI: 10.1016/s0378-4347(00)84386-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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16
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Bayona JM, Albaigés J. Evaluation of glass capillary columns for geochemical analysis. Chromatographia 1982. [DOI: 10.1007/bf02258918] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Parameters affecting the quality of glass capillary columns prepared by the mercury plug dynamic coating method. Chromatographia 1982. [DOI: 10.1007/bf02265682] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Lipsky S, McMurray W. Role of surface groups in affecting the chromatographic performance of certain types of fused-silica glass capillary columns. I. J Chromatogr A 1981. [DOI: 10.1016/s0021-9673(00)88058-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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19
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Sisfontes L, Nyborg G, Svensson L, Blomstrand R. Separation of complex long chain fatty acid mixtures by high-performance glass capillary gas chromatography. J Chromatogr A 1981. [DOI: 10.1016/s0021-9673(00)82340-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Characterization of glass, quartz, and fused silica capillary column surfaces from contact-angle measurements. Chromatographia 1981. [DOI: 10.1007/bf02262872] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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21
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Alexander G. Die Herstellung von Glas-Kapillarsäulen für die Gas-Chromatographie. Chromatographia 1981. [DOI: 10.1007/bf02262064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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23
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24
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25
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26
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Separation of a series of positional and geometrical isomers of olefinic aliphatic primary alcohols and acetates by capillary gas chromatography. J Chromatogr A 1980. [DOI: 10.1016/s0021-9673(00)81519-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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27
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Marshall JL, Sanderson MW. Improvements in the performance of etched glass capillary columns. Chromatographia 1979. [DOI: 10.1007/bf02260658] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Schomburg G, Husmann H, Borwitzky H. Alkylpolysiloxane glass capillary columns combining high temperature stability of the stationary liquid and deactivation of the surface. Chromatographia 1979. [DOI: 10.1007/bf02302941] [Citation(s) in RCA: 79] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Pretorius V, Davidtz JC, Desty DH. Open-pore silica foams: A new support for chromatography. ACTA ACUST UNITED AC 1979. [DOI: 10.1002/jhrc.1240020912] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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31
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32
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Contemporary Chromatography. Anal Chem 1978. [DOI: 10.1021/ac50023a714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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Sprynowicz Z, Gorgol A, Wójcik J. Direct determination of specific suface areas and roughening factors of glass capillaries. J Chromatogr A 1978. [DOI: 10.1016/s0021-9673(00)99331-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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34
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Use of hydrolyzed chlorosilanes for the preparation of high resolution glass capillary columns. Chromatographia 1977. [DOI: 10.1007/bf02257361] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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35
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Comparison of surface modification techniques used for the preparation of wall coated open tubular glass capillary columns. Chromatographia 1977. [DOI: 10.1007/bf02257366] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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Badings HT, van der Pol JJG, Schmidt DG. Some observations on the hydrochloric acid etching of soda-lime glass in the preparation of capillary columns for gas chromatography. Chromatographia 1977. [DOI: 10.1007/bf02257352] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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37
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38
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Ludwig H, Reiner J, Spiteller G. Untersuchung der Steroide im Blut mit der Kombination Glaskapillargaschromatographie-Massenspektrometrie. ACTA ACUST UNITED AC 1977. [DOI: 10.1002/cber.19771100121] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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39
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Cramers CA, Vermeer EA, van Kuik LG, Hulsman JA, Meijers CA. Quantitative determination of underivatized anti-convulsant drugs by high resolution gas chromatography with support-coated open tubular columns. Clin Chim Acta 1976; 73:97-107. [PMID: 1000843 DOI: 10.1016/0009-8981(76)90310-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A method is described to prepare routinely high resolution support-coated open tubular (SCOT) columns. A siliceous support material (Cab-O-Sil) is deactivated with benzyltriphenylphosphonium chloride and deposited on the inside wall of a glass capillary column. After additional coating with a polar stationary phase (OV-225) a number of anticonvulsant drugs can be analyzed without prior derivatization. The columns described show high plate numbers and do not deteriorate in use. The repeatability of the gas chromatographic analysis is better than 1.2% (Orel). The minimum detectable quantity is of the order of 10(-10) g. An improved procedure for isolating the drugs from serum is given, which results in an extraction recovery of better than 90% for the drugs of interest.
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Madani C, Chambaz EM, Rigaud M, Durand J, Chebroux P. New method for the preparation of highly stable polysiloxane-coated glass open-tubular capillary columns and application to the analysis of hormonal steroids. J Chromatogr A 1976; 126:161-9. [PMID: 977689 DOI: 10.1016/s0021-9673(01)84070-x] [Citation(s) in RCA: 72] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A new approach to the preparation of methylsiloxane-coated glass open-tubular capillary columns is described. A siloxane polymeric mixture is first prepared by hydrolysis of dimethyldichlorosilane. The polymer is then coated on to the previously etched glass wall by a base-catalyzed reaction to yield a non-polar system of high stability and showing satisfactory chromatographic properties. This type of column has been used for the high-resolution separations of complex hormonal steroid mixtures. The flexibility of this method should permit the preparation of capillary systems with a wide range of polarity.
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41
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Preparation of glass capillary columns coated with polar phase for high-temperature gas chromatography. J Chromatogr A 1976. [DOI: 10.1016/s0021-9673(01)84067-x] [Citation(s) in RCA: 59] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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42
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Onuska F, Comba M. Preparation and application of surface-modified high-resolution wall-coated open tubular columns. J Chromatogr A 1976. [DOI: 10.1016/s0021-9673(01)84068-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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43
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Krupčík J, Kristín M, Valachovičová M, Janiga Š. Effect of etching with gaseous hydrogen chloride on the quality of glass capillary columns. J Chromatogr A 1976. [DOI: 10.1016/s0021-9673(01)84069-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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44
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Capillary gas chromatography of hypnotics, methyprylon (noludarR) and pyrithyldion (persedonR), after derivatization in an all glass solid injector. Chromatographia 1976. [DOI: 10.1007/bf02282668] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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45
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Grob K, Grob G. A new, generally applicable procedure for the preparation of glass capillary columns. J Chromatogr A 1976. [DOI: 10.1016/s0021-9673(00)85710-6] [Citation(s) in RCA: 149] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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46
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Versino B, Knöppel H, De Groot M, Peil A, Poelman J, Schauenburg H, Vissers H, Geiss F. Organic micropollutants in air and water. Sampling, gas chromatographic-mass spectrometric analysis and computer identification. J Chromatogr A 1976; 122:373-88. [PMID: 932160 DOI: 10.1016/s0021-9673(00)82260-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Organic micropollutants are sampled by dynamic enrichment on a porous polymer column and subsequently thermally eluted in a flow of helium. The eluted compounds enter gas chromatograph inlet and then pass into two parallel glass capillary columns with different stationary phases, in which they are separated. The separated compounds are detected by gas chromatographic (GC) detectors and by a mass spectrometer that is connected to one or other of the two capillary columns by "heart cutting" systems. The GC and mass spectrometric (MS) signals are fed via interfaces into a minicomputer which controls the MS scan and performs data acquisition, reduction and treatment on-line and off-line. The resulting GC and MS data are displayed on a line printer or a visual display unit. The minicomputer is connected by a telephone line to an IBM 370/165 computer, where a library search system has been implemented. Some difficulties encountered, data on the sampling recovery of model compounds and the identification of compounds in air and water samples by GC-MS data and library searches are discussed.
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49
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Watanabe C, Tomita H. Characteristics of non-polar glass support-coated open-tubular columns. J Chromatogr A 1976. [DOI: 10.1016/s0021-9673(00)82293-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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50
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Deelder RS, Ramaekers JJ, Van Den Berg JH, Wetzels ML. Study on the efficiency of support-coated open-tubular columns for steroid analysis. J Chromatogr A 1976; 119:99-107. [PMID: 177436 DOI: 10.1016/s0021-9673(00)86774-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Glass support-coated open-tubular columns for the analysis of steroids in biological samples were prepared with varous support materials. The reproducibility of the procedure of preparing the column was investigated and some fundamental chromatographic properties were studied.
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