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Journal articles on the topic 'Chromatographic detectors'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 January 2023

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1

Lott, Peter F. "Selective gas chromatographic detectors." Microchemical Journal 36, no. 3 (1987): 408. http://dx.doi.org/10.1016/0026-265x(87)90188-3.

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2

Richter, B. E., D. J. Bornhop, J. T. Swanson, J. G. Wangsgaard, and M. R. Andersen. "Gas Chromatographic Detectors in SFC." Journal of Chromatographic Science 27, no. 6 (1989): 303–8. http://dx.doi.org/10.1093/chromsci/27.6.303.

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3

Jiao, Ti Feng, Qi Tong, and Jian Liu. "Hydrogen Bonding Interaction between a Series of Bolaform Schiff Bases with Barbituric Acid by Spectra and HPLC." Applied Mechanics and Materials 236-237 (November 2012): 801–5. http://dx.doi.org/10.4028/www.scientific.net/amm.236-237.801.

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In order to investigate the intermolecular hydrogen bonding of special amphiphiles, a series of bolaform amphiphilic Schiff bases (abbreviated as SCn) with different hydrophobic spacers were designed, and their interaction with barbituric acid were tested by spectra and liquid chromatography. The chromatographic properties showed that all the Schiff bases showed hydrogen bonding interaction with barbituric acid. In addition, the influence of various detectors was also studied on both cases. Experimental results show that the test with VWD detector showed better determination than FLD detector.

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4

Durai Ananda Kumar T, Sai Charan, Venkateswarlu A, and Supriya Reddy K. "Evolution of liquid chromatography: Technologies and applications." International Journal of Research in Pharmaceutical Sciences 11, no. 3 (2020): 3204–11. http://dx.doi.org/10.26452/ijrps.v11i3.2449.

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Liquid chromatographic offers efficient analyte separation employing high pressure pumps. The reversed phase high performance liquid chromatography (RP-HPLC) is widely utilized in the purity testing and quantitative determination of pharmaceuticals and neutraceuticals. The limitations of traditional liquid chromatography such as particle size, resolution and selectivity demanded for the developments and Waters Corporation developed ultraperformance liquid chromatography (UPLC). Ultrafast liquid chromatography (UFLC) is another milestone, which offers faster and efficient separation. Multidimen

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5

Freeman, R. D., R. M. Hammaker, C. E. Meloan, and W. G. Fateley. "A Detector for Liquid Chromatography and Flow Injection Analysis Using Surface-Enhanced Raman Spectroscopy." Applied Spectroscopy 42, no. 3 (1988): 456–60. http://dx.doi.org/10.1366/0003702884427997.

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A successful interface between a high-performance liquid chromatograph and a Raman spectrometer is described. Surface-enhanced techniques are utilized to overcome the sensitivity problem inherent to conventional Raman spectrometry by adding a Ag sol to the chromatographic effluent in a post-column mixing coil. The system is designed so that Raman spectra may be obtained from chromatographic effluent or from flow injection analysis effluent. A common organic dye (pararosaniline hydrochloride) is used to evaluate the reproducibility, dynamic range, and analytical capabilities of the system. The

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6

Rios, Angel. "Chromatographic detectors: Design, function, and operation." Analytica Chimica Acta 353, no. 2-3 (1997): 397. http://dx.doi.org/10.1016/s0003-2670(97)90131-8.

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7

Janák, Jaroslav. "Chromatographic Detectors: Design, function, and operation." Journal of Chromatography A 761, no. 1-2 (1997): 343–44. http://dx.doi.org/10.1016/s0021-9673(97)90303-4.

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8

Rossi, Thomas M. "Laser-based detectors in chromatographic analysis." Journal of Pharmaceutical and Biomedical Analysis 8, no. 6 (1990): 469–76. http://dx.doi.org/10.1016/0731-7085(90)80056-u.

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9

Aue, Walter A., Hameraj Singh, and Xun-Yun Sun. "Fundamental noise in three chromatographic detectors." Journal of Chromatography A 687, no. 2 (1994): 283–90. http://dx.doi.org/10.1016/0021-9673(94)00582-6.

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10

Rose, M. E. "Selective gas chromatographic detectors. Journal of chromatographic library, vol. 36." Analytica Chimica Acta 198 (1987): 335–36. http://dx.doi.org/10.1016/s0003-2670(00)85047-3.

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11

Herman, Frederick L. "Tandem detectors to quantitate overlapping chromatographic peaks." Analytical Chemistry 65, no. 8 (1993): 1023–27. http://dx.doi.org/10.1021/ac00056a013.

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12

Bârsan, N., and R. Ionescu. "SnO2-based gas sensors as chromatographic detectors." Sensors and Actuators B: Chemical 19, no. 1-3 (1994): 470–73. http://dx.doi.org/10.1016/0925-4005(93)01042-3.

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13

Heslop, Mark J., Geoffrey Mason, and Bryan A. Buffham. "Chromatographic Detectors in Systems of Three Components." Adsorption 11, S1 (2005): 67–72. http://dx.doi.org/10.1007/s10450-005-5900-0.

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14

Yang, Yen, and Thanh Viet Ho. "A Comparison of Photothermal Deflection and Thermal Lensing Spectroscopy for Liquid Chromatographic Detection." Applied Spectroscopy 41, no. 4 (1987): 583–85. http://dx.doi.org/10.1366/0003702874448751.

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A one-color pump/probe photothermal deflection detector for liquid chromatography is described and compared with its corresponding thermal lensing detection system. With 457.9-nm radiation from an argon-ion laser operated at a power level of 100 mW, both systems exhibit comparable detection limits. As a consequence, the choice between the two detectors is seemingly arbitrary. Other analytical aspects and potential for use are also compared and discussed.

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15

HORÁK, Tomáš, Jiří ČULÍK, Marie JURKOVÁ, et al. "Main gas chromatographic detectors used in brewing analytics." Kvasny Prumysl 57, no. 6 (2011): 138–42. http://dx.doi.org/10.18832/kp2011011.

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16

Wardencki, Waldemar, and Bogdan Zygmunt. "Gas chromatographic sulphur-sensitive detectors in environmental analysis." Analytica Chimica Acta 255, no. 1 (1991): 1–13. http://dx.doi.org/10.1016/0003-2670(91)85080-c.

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17

Jandik, Petr, Paul R. Haddad, and Paul E. Sturrock. "Electrochemical Detectors for Ion Chromatographic Analysis: A Critical Review." C R C Critical Reviews in Analytical Chemistry 20, no. 1 (1988): 1–74. http://dx.doi.org/10.1080/00078988808048806.

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18

Varmuza, K. "Chemometric detectors for selective detection in gas chromatographic analyses." TrAC Trends in Analytical Chemistry 7, no. 2 (1988): 50–53. http://dx.doi.org/10.1016/0165-9936(88)85008-8.

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19

Talasek, R. T., and M. P. Schoenke. "Comparison of universal chromatographic detectors for trace gas analysis." Journal of Chromatography A 667, no. 1-2 (1994): 205–11. http://dx.doi.org/10.1016/0021-9673(94)89068-4.

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20

Cabras, Paolo, Alberto Angioni, Vincenzo L. Garau, and Elizabeth V. Minelli. "Gas Chromatographic Determination of Cyprodinil, Fludioxonil, Pyrimethanil, and Tebuconazole in Grapes, Must, and Wine." Journal of AOAC INTERNATIONAL 80, no. 4 (1997): 867–70. http://dx.doi.org/10.1093/jaoac/80.4.867.

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Abstract A rapid and simple gas chromatographic method for determinating cyprodinil, fludioxonil, pyrimethanil, and tebuconazole in grapes, must, and wine is described. An on-line microextraction method was used with a one-step extraction–partition procedure. Nitrogen–phosphorus and mass spectrometric detectors were used, because of their low sensitivity and high selectivity. Because of high selectivity of detector, no cleanup was necessary and the extract was concentrated 5 times. Recoveries from fortified grapes, must, and wine ranged from 93 to 110%. Limits of determination were 0.05 mg/kg

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21

Abramov, Evgeny G., and Alla G. Malysheva. "Ionic chromatographic determination of iodides, nitrites and bivalent iron in water with amperometric detector." Hygiene and sanitation 99, no. 11 (2020): 1288–93. http://dx.doi.org/10.47470/0016-9900-2020-99-11-1288-1293.

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Introduction. The majority of ionic chromatographic methods approved in our country for assessing the quality and chemical safety of water for the content of controlled anions and cations are developed using conductometry. However, quantitative determination of micro concentrations of cations and anions in drinking water and other water bodies against the background of macro concentrations of other components due to their interfering influence by the method of conductometric ion-chromatographic analysis is not possible. Material and methods. The tap water in Nothern East Administrative distric

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22

Kientz, Ch E., and U. A. Th Brinkman. "The use of gas chromatographic detectors in column liquid chromatography." TrAC Trends in Analytical Chemistry 12, no. 9 (1993): 373–81. http://dx.doi.org/10.1016/0165-9936(93)87027-u.

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23

Poole, Colin F. "Selective gas chromatographic detectors (Journal of Chromatography Library, Vol. 36)." Journal of Chromatography A 394, no. 2 (1987): 414. http://dx.doi.org/10.1016/s0021-9673(01)94197-4.

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24

Sajewicz, Mieczysław, Dorota Staszek, Łukasz Wojtal, Teresa Kowalska, Michał Ł. Hajnos, and Monika Waksmundzka-Hajnos. "Binary HPLC-Diode Array Detector and HPLC-Evaporative Light-Scattering Detector Fingerprints of Methanol Extracts from the Selected Sage (Salvia) Species." Journal of AOAC INTERNATIONAL 94, no. 1 (2011): 71–76. http://dx.doi.org/10.1093/jaoac/94.1.71.

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Abstract This study is focused on an important family of the sage (Salvia) species, with Salvia officinalis L. having a long-established position in European traditional medicine. Binary fingerprints (chromatographic profiles) of six different sage species were compared using HPLC coupled with two different detectors: the diode-array detector and the evaporative light-scattering detector. Advantages of using binary fingerprinting over single-detector fingerprinting are demonstrated and discussed, with selected examples. Experimental data are provided for a comparison of the chemical compositio

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25

Faiola, C. L., M. H. Erickson, V. L. Fricaud, B. T. Jobson, and T. M. VanReken. "Quantification of biogenic volatile organic compounds with a flame ionization detector using the effective carbon number concept." Atmospheric Measurement Techniques Discussions 5, no. 2 (2012): 2415–47. http://dx.doi.org/10.5194/amtd-5-2415-2012.

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Abstract. Biogenic volatile organic compounds (BVOCs) are emitted into the atmosphere by plants and include isoprene, monoterpenes, sesquiterpenes, and their oxygenated derivatives. These BVOCs are among the principal factors influencing the oxidative capacity of the atmosphere in forested regions. BVOC emission rates are often measured by collecting samples onto adsorptive cartridges in the field and then transporting these samples to the laboratory for chromatographic analysis. One of the most commonly used detectors in chromatographic analysis is the flame ionization detector (FID). For qua

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26

Faiola, C. L., M. H. Erickson, V. L. Fricaud, B. T. Jobson, and T. M. VanReken. "Quantification of biogenic volatile organic compounds with a flame ionization detector using the effective carbon number concept." Atmospheric Measurement Techniques 5, no. 8 (2012): 1911–23. http://dx.doi.org/10.5194/amt-5-1911-2012.

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Abstract. Biogenic volatile organic compounds (BVOCs) are emitted into the atmosphere by plants and include isoprene, monoterpenes, sesquiterpenes, and their oxygenated derivatives. These BVOCs are among the principal factors influencing the oxidative capacity of the atmosphere in forested regions. BVOC emission rates are often measured by collecting samples onto adsorptive cartridges in the field and then transporting these samples to the laboratory for chromatographic analysis. One of the most commonly used detectors in chromatographic analysis is the flame ionization detector (FID). For qua

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27

FERREIRA, ISABEL M. P. L. V. O., and OLÍVIA PINHO. "Biogenic Amines in Portuguese Traditional Foods and Wines." Journal of Food Protection 69, no. 9 (2006): 2293–303. http://dx.doi.org/10.4315/0362-028x-69.9.2293.

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The presence of biogenic amines in foodstuffs is an important food safety problem because of the implication of these compounds in food intolerance and intoxication. The separation and quantification of biogenic amines in foods is normally performed by chromatographic techniques. This review contains descriptions of the quantification of biogenic amines in Portuguese traditional fermented and/or ripened foods and wines, including Protected Denomination of Origin cheeses, dry-cured sausages, and Portuguese wines (including Port wines), using different analytical methods based on high-pressure l

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28

Dopico-García, M., Rosalía Noguerol-Cal, M. Castro-López, et al. "Determination of polyolefin additives by reversed-phase liquid chromatography." Open Chemistry 10, no. 3 (2012): 585–610. http://dx.doi.org/10.2478/s11532-012-0001-x.

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AbstractThis article examines the contribution of liquid chromatography to the study of polyolefin additives commonly used to obtain improved environmental resistance (antioxidants, ultraviolet light stabilizers, antistatics, and so on) and appearance enhancements (e.g. colorants). Several reversed-phase liquid chromatographic methods are summarized, and a detailed description of different detectors is provided. In addition, ways of applying these methods to analyse food contact materials and plastic toys are emphasized. Finally, the potential use of these methods is addressed which complies w

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29

Tong, Qi, and Ti Feng Jiao. "Investigation of Hydrogen Bonding Interaction between Bolaform Schiff Bases with Barbituric Acid by HPLC." Advanced Materials Research 356-360 (October 2011): 48–51. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.48.

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In order to investigate the intermolecular hydrogen bonding of special amphiphiles, two bolaform amphiphilic Schiff bases (GN1 and GN2) with different hydrophilic spacers were designed, and their interaction with barbituric acid were tested by liquid chromatography. The chromatographic properties showed that both the Schiff bases showed hydrogen bonding interaction with barbituric acid. In addition, the influence of various detectors was also studied on both cases. Experimental results show that the test with FLD showed better determination than other detectors. It is proposed that due to the

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30

Jackson, K. D., S. J. Walton, and D. Campbell. "Signal enhancement techniques for chromatography detection systems." Journal of Automatic Chemistry 19, no. 5 (1997): 145–52. http://dx.doi.org/10.1155/s146392469700014x.

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The Environmental Protection Act has created a growing need for the measurement and assessment of trace emissions to the environment. This encompasses three main areas of ground, water and the atmosphere. The need to achieve lower emissions has placed a large burden on analytical techniques, particularly in the areas of trace analysis to ppb and ppt levels. Chromatographic techniques are widely used for assessment and measurement of emissions in all three areas. Enhanced detectors using mass spectrometry principles are available to lower detection limits, but these are expensive. Standard chro

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31

Ash, Peter W., Neil W. Barnett, Les Ebdon, and Steve J. Rowley. "Configuration and optimization of semiconductor gas sensors as gas chromatographic detectors." Analytica Chimica Acta 216 (January 1989): 147–61. http://dx.doi.org/10.1016/s0003-2670(00)82007-3.

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32

Daszykowski, M., and B. Walczak. "Target selection for alignment of chromatographic signals obtained using monochannel detectors." Journal of Chromatography A 1176, no. 1-2 (2007): 1–11. http://dx.doi.org/10.1016/j.chroma.2007.10.099.

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33

Wan, Hai Bin, Ming Keong Wong, and Chup Yew Mok. "Simple method for preventing unsuitable solvents from entering gas chromatographic detectors." Journal of Chromatography A 663, no. 1 (1994): 123–26. http://dx.doi.org/10.1016/0021-9673(94)80504-0.

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34

Lee, Hing-Biu. "Review of Analytical Methods for the Determination of Nonylphenol and Related Compounds in Environmental Samples." Water Quality Research Journal 34, no. 1 (1999): 3–36. http://dx.doi.org/10.2166/wqrj.1999.002.

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Abstract Analytical methods published in the last 20 years for the extraction, chromato-graphic separation, and quantification of alkylphenol ethoxylates (APEO) and related compounds in environmental samples are reviewed. Examples of various isolation and preconcentration techniques for water, effluent, sediment and sludge are presented. This includes procedures from the classical liquid-liquid and Soxhlet extraction to the up-to-date solid phase and supercritical fluid extraction. Chromatographic separation of APEO by normal and reversed phase liquid chromatography (LC) and capillary column g

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35

Charbe, Nitin B., Flavia C. Zacconi, Nikhil Amnerkar, B. Ramesh, Murtaza M. Tambuwala, and Emilio Clementi. "Bio-analytical Assay Methods used in Therapeutic Drug Monitoring of Antiretroviral Drugs-A Review." Current Drug Therapy 14, no. 1 (2019): 16–57. http://dx.doi.org/10.2174/1574885514666181217125550.

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Background: Several clinical trials, as well as observational statistics, have exhibited that the advantages of antiretroviral [ARV] treatment for humans with Human Immunodeficiency Virus / Acquired Immune Deficiency Syndrome HIV/AIDS exceed their risks. Therapeutic drug monitoring [TDM] plays a key role in optimization of ARV therapy. Determination of ARV’s in plasma, blood cells, and other biological matrices frequently requires separation techniques capable of high effectiveness, specific selectivity and high sensitivity. High-performance liquid chromatography [HPLC] coupled with ultraviole

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36

MacCrehan, W. A., and E. Schönberger. "Determination of retinol, alpha-tocopherol, and beta-carotene in serum by liquid chromatography with absorbance and electrochemical detection." Clinical Chemistry 33, no. 9 (1987): 1585–92. http://dx.doi.org/10.1093/clinchem/33.9.1585.

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Abstract We describe a method for the determination of retinol, alpha-tocopherol, and beta-carotene in serum, using a liquid-chromatographic separation with wavelength-programmed ultraviolet/visible absorbance and amperometric electrochemical detection with a glassy carbon electrode. After protein denaturation and addition of an internal standard, tocol, 250-microL samples are twice extracted with hexane. The reversed-phase, gradient-elution chromatographic separation provides baseline resolution of: the all-trans isomer of retinol from the cis isomers, alpha- from gamma-tocopherol, and all-tr

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37

Lomenova, Anna, Katarína Hroboňová, and Terézia Šolónyová. "HPLC separation of panthenol enantiomers on different types of chiral stationary phases." Acta Chimica Slovaca 11, no. 2 (2018): 114–19. http://dx.doi.org/10.2478/acs-2018-0017.

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Abstract Panthenol is a biologically active compound closely related to vitamin B5 (pantothenic acid). This work deals with the separation of panthenol enantiomers using high performance liquid chromatography. Different types of chiral stationary phases (β-cyclodextrin, isopropyl carbamate cyclofructan 6, amylose tris(3,5-dimethylphenylcarbamate)) were tested in normal phase separation mode. Effect of mobile phase composition on the resolution and retention of enantiomers was studied. Two types of detectors, low-wavelength UV and polarimetric, were used. The optimal chromatographic system incl

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38

Verdugo-Torres, Brayan David, Jairo Antonio Cubillo-Lobo та Hugo Alfonso Rojas Sarmiento. "Validation of an analytical method by GC-FID for the quantification of styrene and α-methylstyrene". Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales 44, № 172 (2020): 828–34. http://dx.doi.org/10.18257/raccefyn.1021.

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Styrene and α-methylstyrene are substrates of great interest in asymmetric catalysis. Although they have been widely used, known quantification methodologies are restricted to the use of mass spectrometry detectors and are not validated. In the present work, we developed and validated a reliable method by gas chromatography with a flame ionization detector (GC-FID) for the analysis of non-functionalized olefins (styrene and α-methylstyrene) in a liquid matrix using toluene as the internal standard. We explored validation parameters such as selectivity, linearity, detection limit, quantificatio

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39

Lázaro, Maria Jesus, Elvira Carbonell, Maria Concepcion Aristoy, Jose SafÓn, and Miguel Rodrigo. "Liquid Chromatographic Determination of Acids and Sugars in Homolactic Cucumber Fermentations." Journal of AOAC INTERNATIONAL 72, no. 1 (1989): 52–55. http://dx.doi.org/10.1093/jaoac/72.1.52.

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Abstract A rapid, high yield, and quantitative method for determination of sugars (glucose and fructose) and acids (malic, lactic, acetic, and citric) in fresh and fermented cucumber juices is described; the procedure solves the fructose and malic acid coelution problem. Samples are prepared by passing the juice directly through a disposable C18 cartridge. Compounds are separated by liquid chromatography on an Aminex HPX-87H chromatographic column, with 0.013N H2S04 as mobile phase in the isocratic mode at 0.6 mL/min flow rate and 60°C column temperature. Compounds are then detected and quanti

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40

Micalizzi, Giuseppe, Filippo Alibrando, Federica Vento, et al. "Development of a Novel Microwave Distillation Technique for the Isolation of Cannabis sativa L. Essential Oil and Gas Chromatography Analyses for the Comprehensive Characterization of Terpenes and Terpenoids, Including Their Enantio-Distribution." Molecules 26, no. 6 (2021): 1588. http://dx.doi.org/10.3390/molecules26061588.

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A microwave distillation method was optimized for the extraction and isolation of cannabis essential oil from fresh and dried hemp inflorescences. The developed method enabled us to obtain a distilled product rich in terpenes and terpenoid compounds, responsible of the typical and unique smell of the cannabis plant. The distillate from different hemp cultivars, including Kompolti, Futura 75, Carmagnola, Felina 32 and Finola were characterized by using a gas chromatograph equipped with both mass spectrometer and flame ionization detectors. In a single chromatographic run, the identity and absol

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41

Simion Beldean-Galea, Mihail, Florina-Maria Copaciu, and Maria-Virginia Coman. "Chromatographic Analysis of Textile Dyes." Journal of AOAC INTERNATIONAL 101, no. 5 (2018): 1353–70. http://dx.doi.org/10.5740/jaoacint.18-0066.

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Abstract The textile industry uses many raw materials (natural and synthetic dyes and fibers) and different dyeing techniques that can be considered important pollutants with a negative impact on the environment (toxic working conditions, discharged wastewater, and contamination). Although synthetic dyes are intensively used, offer a wide range of colors and hues and properties of adhesion, longevity, and resistance to sunshine and chemical processes, and are cost-effective, they have begun to be restricted by many textile producers because they are nonbiodegradable and have toxic, carcinogeni

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42

Chen, Pei, Renata Atkinson, and Wayne R. Wolf. "Single-Laboratory Validation of a High-Performance Liquid Chromatographic-Diode Array Detector-Fluorescence Detector/Mass Spectrometric Method for Simultaneous Determination of Water-Soluble Vitamins in Multivitamin Dietary Tablets." Journal of AOAC INTERNATIONAL 92, no. 2 (2009): 680–88. http://dx.doi.org/10.1093/jaoac/92.2.680.

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Abstract The purpose of this study was to develop a single-laboratory validated (SLV) method using high-performance liquid chromatography with different detectors diode array detector (DAD); fluorescence detector (FLD); and mass spectrometry (MS) for determination of 7 B-complex vitamins (B1-thiamin, B2-riboflavin, B3-nicotinamide, B6-pyridoxine, B9-folic acid, pantothenic acid, and biotin) and vitamin C in multivitamin/multimineral dietary supplements. The method involves the use of a reversed-phase octadecylsilyl column (4 m, 250 2.0 mm id) and a gradient mobile phase profile. Gradient eluti

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43

Cabras, Paolo, Alberto Angion, Vincenzo L. Garau, Filippo M. Pirisi, and Vincenzo Brandolini. "Gas Chromatographic Determination of Azoxystrobin, Fluazinam, Kresoxim-Methyl, Mepanipyrim, and Tetraconazole in Grapes, Must, and Wine." Journal of AOAC INTERNATIONAL 81, no. 6 (1998): 1185–89. http://dx.doi.org/10.1093/jaoac/81.6.1185.

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Abstract Azoxystrobin, fluazinam, kresoxim-methyl, mepanipyrim, and tetraconazole were determined in grapes, must, and wine by a gas chromatographic method with nitrogen-phosphorus (NP) and mass spectrometric (MS) detectors. Pesticides were isolated from the matrixes by online microextraction with acetone-hexane (50 + 50, v/v). Because of the high selectivity of NP and MS detectors, no interfered peaks were present and no cleanup was necessary. Recoveries from fortified grapes, must, and wine ranged from 80 to 111 %, with coefficients of variation ranging from 1 to 14%. Limits of determination

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44

Bu, Xiaodong, Erik L. Regalado, Simon E. Hamilton, and Christopher J. Welch. "The emergence of low-cost compact mass spectrometry detectors for chromatographic analysis." TrAC Trends in Analytical Chemistry 82 (September 2016): 22–34. http://dx.doi.org/10.1016/j.trac.2016.04.025.

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45

Colson, Ewan R. "Linearity assessment of detectors in gas chromatographic systems by sample-loop supercharge." Analytical Chemistry 58, no. 2 (1986): 334–37. http://dx.doi.org/10.1021/ac00293a016.

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46

Hoker, J., F. Obersteiner, H. Bönisch, and A. Engel. "Comparison of GC/time-of-flight MS with GC/quadrupole MS for halocarbon trace gas analysis." Atmospheric Measurement Techniques 8, no. 5 (2015): 2195–206. http://dx.doi.org/10.5194/amt-8-2195-2015.

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Abstract. We present the application of time-of-flight mass spectrometry (TOF MS) for the analysis of halocarbons in the atmosphere after cryogenic sample preconcentration and gas chromatographic separation. For the described field of application, the quadrupole mass spectrometer (QP MS) is a state-of-the-art detector. This work aims at comparing two commercially available instruments, a QP MS and a TOF MS, with respect to mass resolution, mass accuracy, stability of the mass axis and instrument sensitivity, detector sensitivity, measurement precision and detector linearity. Both mass spectrom

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47

Lee, S. Mark, and Philip L. Wylie. "Comparison of the atomic emission detector to other element-selective detectors for the gas chromatographic analysis of pesticide residues." Journal of Agricultural and Food Chemistry 39, no. 12 (1991): 2192–99. http://dx.doi.org/10.1021/jf00012a019.

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Zumárraga, M., I. Andia, B. Bárcena, M. I. Zamalloa, and R. Dávilla. "Liquid-chromatographic method for determination of homovanillic acid in plasma, with electrochemical detection." Clinical Chemistry 33, no. 1 (1987): 72–75. http://dx.doi.org/10.1093/clinchem/33.1.72.

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Abstract We describe a sensitive, simple method for measuring homovanillic acid in human plasma. The method is based on liquid chromatography with electrochemical detection. Sensitivity was 125 pg of homovanillic acid per injection. Samples were deproteinized and extracted with organic solvent before chromatography. Quantification was by the standard-additions technique. Analytical recovery of added HVA was 44.8 (SD 6.2%). We confirmed specificity by using serial amperometric detectors.

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Pascale, Michelangelo. "Detection methods for mycotoxins in cereal grains and cereal products." Zbornik Matice srpske za prirodne nauke, no. 117 (2009): 15–25. http://dx.doi.org/10.2298/zmspn0917015p.

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Analytical methods for mycotoxins in cereals and cereal-based products require three major steps, including extraction, clean-up (to eliminate interferences from the extract and concentrate the analyte), and detection/determination of the toxin (by using suitable analytical instruments/technologies). Clean-up is essential for the analysis of mycotoxins at trace levels, and involves the use of solid phase extraction and multifunctional (e.g. MycoSep?) or immunoaffinity columns. Different chromatographic methods are commonly used for quantitative determination of mycotoxins, including gas-chroma

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Hoker, J., F. Obersteiner, H. Bönisch, and A. Engel. "Application of GC/Time-of-Flight-MS for halocarbon trace gas analysis and comparison with GC/Quadrupole-MS." Atmospheric Measurement Techniques Discussions 7, no. 12 (2014): 12323–55. http://dx.doi.org/10.5194/amtd-7-12323-2014.

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Abstract. We present the application of Time-of-Flight Mass Spectrometry (TOF MS) for the analysis of halocarbons in the atmosphere, after cryogenic sample preconcentration and gas chromatographic separation. For the described field of application, the Quadrupole Mass Spectrometer (QP MS) is the state-of-the-art detector. This work aims at comparing two commercially available instruments, a QP MS and a TOF MS with respect to mass resolution, mass accuracy, sensitivity, measurement precision and detector linearity. Both mass spectrometers are operated on the same gas chromatographic system by s

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