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Journal articles on the topic 'Gas chromatograph'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Arzu Ibragimova, Arzu Ibragimova. "BENEFITS OF USING A FID TO MEASURE THE MULTICOMPONENT GAS MIXTURES." PIRETC-Proceeding of The International Research Education & Training Centre 27, no. 06 (2023): 131–39. http://dx.doi.org/10.36962/piretc27062023-131.

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The development of the oil and gas complex is one of the priority areas of the Azerbaijan economy. Oil and gas are among the most competitive Azerbaijan goods and are in high and stable demand from global consumers. Therefore, increased attention is paid to product quality. One of the methods for quality control of petroleum products is gas chromatography. Today it is a widely used physical and chemical research method. The capabilities of a gas chromatography are mainly determined by the enormous separating power of the chromatographic columns and the characteristics of the detectors. If the

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2

Meng, Xin Xin, and Shu Lin Yang. "Comparison of Gas Chromatography and Liquid Chromatogram Detecting Pesticide Residue." Applied Mechanics and Materials 539 (July 2014): 113–16. http://dx.doi.org/10.4028/www.scientific.net/amm.539.113.

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The existing methods of detecting pesticide residue include gas chromatography, high performance liquid chromatography, gas chromatograph-mass, liquid chromatograph-mass, capillary electrophoresis, radioimmunoassay, biosensor and rapid detection on the spot. The paper analyzes the comparison of gas chromatography and liquid chromatogram detecting pesticide residue, for achieving the development tendency and the future goal of analyzing pesticide residue.

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Denisov, I. S., V. V. Korotkov, and D. S. Smirnov. "Gaschromatographic monitoring of volatile pollutants of urban air: optimizing analysis and concentrating." Sanitarnyj vrač (Sanitary Doctor), no. 10 (October 1, 2020): 70–76. http://dx.doi.org/10.33920/med-08-2010-08.

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For determining 22 volatile organic compounds in the atmospheric air, the operating modes of the gas chromatographic complexes «chromatography-mass spectrometer — two-stage thermodesorber» and «gas chromatograph with 2 FID — static headspace analysis sampler» are optimized. The modes provide the values of the separation coefficients of the chromatographic peaks in the range of 1.5 ÷ 21. It has been experimentally established that the highest desorption efficiency of volatile organic compounds is registered when the sample is concentrated into Tenax TA sorption tubes.

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Yatsenko, Larisa Anatolyevna, Maria Yurevna Printseva, Ilya Danilovich Cheshko, and Artur Alexandrovich Tumanovsky. "Detection of residues and determination of the composition of combustible components in case of explosions of vapor-gas-air mixtures." Technology of technosphere safety 97 (2022): 51–60. http://dx.doi.org/10.25257/tts.2022.3.97.51-60.

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Introduction. Liquefied hydrocarbon gases (LHG) are widely used in various fields. The main components of LHG are: propane, isobutane and n-butane, which are not only combustible, but also explosive gases capable of detonation combustion. The detection of LHG in the air is a very urgent task in expert studies. To determine the component composition of various flammable liquids, for the purpose of their identification, chromatographs equipped with a capillary quartz column with a phase that allows detecting saturated hydrocarbons of the homologous series from pentane to pentatetracontane inclus

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Vetrenko, V. O., O. A. Golovanova, and N. I. Buchatskaya. "Comparative evaluation of gas chromatographic techniques for determination of hydrogen used for isopropyl alcohol synthesis." Industrial laboratory. Diagnostics of materials 91, no. 6 (2025): 5–10. https://doi.org/10.26896/1028-6861-2025-91-6-5-10.

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During the synthesis of isopropyl alcohol by the acetone hydrogenation reaction, it is necessary to control the content of impurities in the hydrogen used, since its purity determines the quality of the product, and impurities of CO and CO2 are catalytic poisons for this reaction. At the «Omsky Kauchuk» plant, the purity of hydrogen is determined by gas chromatography using two different chromatographs — laboratory and flow. A comparison of the results of the parallel determination of hydrogen purity revealed a discrepancy of about 10 % wt., while the flow chromatograph did not detect impuriti

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6

Ogierman, Leonard. "Gas Chromatography of Uracil Herbicides by On-Column Methylation with Trimethylanilinium Hydroxide." Journal of AOAC INTERNATIONAL 69, no. 5 (1986): 912–14. http://dx.doi.org/10.1093/jaoac/69.5.912.

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Abstract Substituted uracil herbicides injected into a gas chromatograph react with trimethylanilinium hydroxide to give iV-methyl derivatives with good gas chromatographic properties. Maximum methylation is obtained when the molar ratio of methylating reagent to herbicide is ca 4:1. This technique for preparing derivatives provides rapid qualitative and quantitative chromatography of the substances examined. Chromatographic response was linear with increased concentration for the synthetic standard and the on-column product of uracil herbicide. The proposed derivatization method was used to a

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7

Hammack, Walter, Mary C. Carson, Barbara K. Neuhaus, et al. "Multilaboratory Validation of a Method To Confirm Chloramphenicol in Shrimp and Crabmeat by Liquid Chromatography-Tandem Mass Spectrometry." Journal of AOAC INTERNATIONAL 86, no. 6 (2003): 1135–43. http://dx.doi.org/10.1093/jaoac/86.6.1135.

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Abstract An existing method for chloramphenicol (CAP) determination in shrimp using a gas chromatograph with electron capture detector was adapted for confirmation of CAP with a liquid chromatograph interfaced to a triple quadrupole mass spectrometer. CAP residues are extracted from tissue with ethyl acetate, isolated via liquid–liquid extraction, and concentrated by evaporation. Extracts are chromatographed by using a reversed-phased column and analyzed by electrospray negative mode tandem mass spectrometry. Four product ions (m/z 152, 176, 194, and 257) of precursor m/z 321 were monitored. M

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8

Tang, Feng, Xiaojing Dang, Ze Zheng, Lei Zhu, and Hua Fang. "Determination of sulfur dioxide (SO₂) in insulating gas using plasma emission gas chromatography." Journal of Physics: Conference Series 3032, no. 1 (2025): 012032. https://doi.org/10.1088/1742-6596/3032/1/012032.

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Abstract A plasma emission gas chromatograph was used to analyze the SO2 content in insulation gas. Its basic principle is described in detail, and its unique advantages in the field of insulation gas composition analysis are highlighted. An effective SO2 gas chromatography method was established by optimizing the experimental conditions. Standard gas test results show that the method exhibits excellent performance: good linearity (R2 =0.997), detection limits up to 0.01 ppm, and repeatability of less than 1%. It provides powerful data support for state evaluation and fault diagnosis of insula

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9

Dąbrowski, Łukasz. "Design and application of a gas chromatograph–gas chromatograph transfer line." Journal of Chromatography A 1210, no. 2 (2008): 234–38. http://dx.doi.org/10.1016/j.chroma.2008.09.072.

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10

Shojania, S., M. E. McComb, R. D. Oleschuk, H. Perreault, H. D. Gesser, and A. Chow. "Article." Canadian Journal of Chemistry 77, no. 11 (1999): 1716–27. http://dx.doi.org/10.1139/v99-142.

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An alternative sampling technique for fingerprint analysis of complex mixtures of petroleum-based products is presented. Fingerprint chromatograms of the volatile organic compounds (VOCs) for class 0-5 accelerants can be readily obtained using the recently developed inside needle capillary adsorption trap (INCAT) device. The concentration of VOCs from the static headspace of these complex mixtures, onto the adsorbing carbon coating of the INCAT device, avoids some problems associated with conventional headspace gas chromatography (HS-GC). The INCAT sampling method is a solventless extraction t

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11

Shkurdoda, S., D. Shynkarenko, V. Pasichnyk, K. Korol, and O. Posilskyi. "EXPERT STUDY OF ISONIAZIDE IN MEAT PRODUCTS." Criminalistics and Forensics, no. 66 (2021): 785–99. http://dx.doi.org/10.33994/kndise.2020.66.57.

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The article deals with the recommendations for the detection of isoniazid in meat products, using the example of minced meat using physicochemical methods. This study does not lose its relevance over the years, due to the use of drugs for tuberculosis for poisoning homeless and domestic animals, in particular dogs, in different regions of Ukraine, the main active ingredient of which is isoniazid. The article describes a method for the extraction of isoniazid in food products of meat origin (minced meat, sausage), which presumably could or may be used to poison domestic animals, in particular d

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12

Li, Yanping, and Yong Li. "Research and Application of Standard Oil Dispensing System for Dissolved Gases in Transformer Oil." Journal of Physics: Conference Series 2125, no. 1 (2021): 012072. http://dx.doi.org/10.1088/1742-6596/2125/1/012072.

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Abstract Measuring the content of dissolved gas components in transformer insulating oil by gas chromatography is an important means to judge the internal potential faults of oil filled electrical equipment in the process of operation supervision. The necessary work skills of power grid operators include the ability to detect the content of dissolved gas in transformer oil and judge the operation state of transformer. This paper introduces a preparation method and equipment of transformer standard oil. It can quickly prepare standard oils with various gas component contents. The standard oil q

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13

NAKAGAWA, Katsuhiro, Kouki TANAKA, and Keisuke MATSUDA. "Gas Chromatograph-Mass Spectrometry." Journal of the Japan Society of Colour Material 78, no. 8 (2005): 384–88. http://dx.doi.org/10.4011/shikizai1937.78.384.

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14

Omelchuk, Sergii T., Alina I. Syrota, and Anna V. Blagaia. "THE NEED FOR IMPROVEMENT OF FUNGICIDES RESIDUAL QUANTITIES CONTROL METHODS IN THE CONDITIONS OF THE DOMESTIC REGULATORY BASE HARMONIZATION." Wiadomości Lekarskie 75, no. 10 (2022): 2455–61. http://dx.doi.org/10.36740/wlek202210126.

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The aim: To develop highly sensitive analytical methods for the determination of the systemic phenylamide class fungicide – Metalaxyl-M residues in watermelons and grapes to reduce the risk of hazardous effects on workers’ and public health. Materials and methods: Conditions for Metalaxyl-M detection by gas-liquid chromatography (GLC) using a chromatographic capillary column SH-Rxi-5ms (length – 30 m, inner diameter – 0.25 mm, layer thickness – 0.25 μm) were determined. The optimal conditions for chromatography of Metalaxyl-M were established: column thermostat temperature – 220°С, evaporator

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15

Kataev, S. S., O. N. Dvorskaya, M. A. Gofenberg, A. V. Labutin, and A. B. Melentyev. "ANALYTICAL FEATURES OF SYNTHETIC MDMB(N)-073F CANNABIMIMETICS AND ITS MARKERS IN BIOLOGICAL MATERIAL." Pharmacy & Pharmacology 7, no. 4 (2019): 184–97. http://dx.doi.org/10.19163/2307-9266-2019-7-4-184-197.

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The aim of the research is to study both analytical features of synthetic MDMB(N)-073F cannabimimetics of indazole carboxamides group by gas chromatography methods combined with tandem mass spectrometry (GC-MS) and high performance liquid chromatography with high-resolution mass spectrometry (HPLC-HRMS) as well as characteristics of the major MDMB(N)-073F metabolite, its glucuronide and derivatives, using gas chromatography with mass-spectrometric (GC-MS) detection and high-performance liquid chromatography (HPLC) with MS/MS mass spectrometry (HPLC-MS/MS) in urine samples to be applied in expe

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16

Smyrl, N. R., D. M. Hembree, W. E. Davis, D. M. Williams, and J. C. Vance. "Simultaneous GC-FT-IR/GC-MS Analysis for Isomer-Specific Identification and Quantitation of Complex Mixture Components." Applied Spectroscopy 46, no. 2 (1992): 277–82. http://dx.doi.org/10.1366/0003702924125636.

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The construction and capabilities of a new instrument combining infrared and mass spectrometry to simultaneously examine the effluent from a single capillary column gas chromatographic injection are described. Gas chromatography-mass spectrometry (GC-MS) is performed in the conventional manner. However, the Fourier transform infrared (FT-IR) portion of the instrument employs a new sampling method involving low-temperature trapping of the effluent from the gas chromatograph. The mass spectrometer was over two orders of magnitude more sensitive (161 fg detection limit for naphthalene) than the i

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17

Jitender, Kumar, Kumar Vinod, Kumar Singh Vinay, et al. "GC-SAW and GC-FID performance comparison for fast analysis of volatile organic compounds." Indian Journal of Science and Technology 13, no. 48 (2020): 4672–78. https://doi.org/10.17485/IJST/v13i48.1611.

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Abstract <strong>Objectives:</strong> To develop gas chromatograph (GC) based chemical agent detector and to compare the response of Surface Acoustic Wave (SAW) detector with Flame Ionization Detector (FID) for the development of a reliable and fast gas/vapour analyzer. Also, to describe the limitations of the FID over SAW detector.<strong> Methods:</strong> An uncoated 433.92 MHz SAW device was used as Gas Chromatography (GC) detector and its response was recorded and compared with conventional FID detector using short capillary column. The response of both the detectors were a

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18

He, Zilan, Qingsha Hang, Baiquan Chen, Bangfa Chen, and Sixiang Chen. "MEMS-based Sensing Technology for the Gas Chromatograph Analysis." Journal of Physics: Conference Series 2479, no. 1 (2023): 012003. http://dx.doi.org/10.1088/1742-6596/2479/1/012003.

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Abstract Device miniaturization based on MEMS technology is an important research direction in the field of MEMS. The gas chromatograph is a commonly used instrument for detecting complex gases, but due to its large size, high power consumption, and heavyweight, it is not convenient and cannot meet people’s needs for real-time, online, and rapid access to information. Therefore, the miniaturization of gas chromatographs combined with MEMS technology is a research trend. This paper first introduces the basic structure of the gas chromatograph. Then it studies the miniaturization of columns, det

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19

Bhushan, Abhinav, Dawit Yemane, Dan Trudell, Edward B. Overton, and Jost Goettert. "Fabrication of micro-gas chromatograph columns for fast chromatography." Microsystem Technologies 13, no. 3-4 (2006): 361–68. http://dx.doi.org/10.1007/s00542-006-0210-3.

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20

SK, Pankratov. "Gas-Phase Isotopic Immunometry based on Reflectron-Assisted in Situ Detection of Products of Gas Chromatographic Separation of Antibodies and Antigens." Virology & Immunology Journal 4, no. 1 (2020): 1–13. http://dx.doi.org/10.23880/vij-16000228.

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The system for gas-phase immunometric measurements with isotopic resolution is proposed. This system based on the reflectron-based Finnigan MAT mass spectrometer can be used in combination with gas chromatograph or gasliquid chromatographic device. The IMMUNOREFLECTRON-2016 project has been quickly closed for the organizational \ administrative reasons, and all the schemes are now confined in the room where this project has been started. Consequently, it is only possible to propose the variants of similar research and development task solutions in different conditions.

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21

Tong, Daixin, Keith D. Bartle, Anthony A. Clifford, and Robert E. Robinson. "Unified chromatograph for gas chromatography, supercritical fluid chromatography and micro-liquid chromatography." Analyst 120, no. 10 (1995): 2461. http://dx.doi.org/10.1039/an9952002461.

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22

White, M. A., M. D. Simmons, A. Bishop, and H. A. Chandler. "Microbial identification by gas chromatography." Journal of The Royal Naval Medical Service 74, no. 3 (1988): 141–46. http://dx.doi.org/10.1136/jrnms-74-141.

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AbstractGas chromatography is rapidly being accepted as a valuable technique for the identification of microrganisms, as the speed of identification can be significantly greater than current biochemical techniques. The Health Department of the Institute of Naval Medicine has recently installed a fully automated gas chromatograph dedicated to rapid bacterial analysis particularly in the area of clinical microbiology. This paper describes the preparative and anlytical methods employed by the system and the results of preliminary studies.

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23

Wang, Frank Cheng-Yu. "Interface between pyrolyzer and gas chromatograph a different configuration of pyrolysis-gas chromatography." Journal of Chromatography A 786, no. 1 (1997): 107–15. http://dx.doi.org/10.1016/s0021-9673(97)00548-7.

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24

Melikhova, E. V., and V. Yu Solovyova. "Gas Chromatographic Determination of Residual Concentrations of a Mixture of Organochlorine Pesticides in Food Products." Proceedings of the Southwest State University. Series: Engineering and Technology 13, no. 4 (2024): 163–73. http://dx.doi.org/10.21869/2223-1528-2023-13-4-163-173.

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Purpose of research. The aim of the work is to optimize the conditions for gas chromatographic determination of a mixture of eight organochlorine pesticides: aldrin, hexachlorobenzene, heptachlor, α-hexachlorocyclohexane, γ-hexachlorocyclohexane, dichlorodiphenyltrichloromethylmethane, dichlorodiphenyldichloroethane and dichlorodiphenyldichloroethylene.Methods. For chromatographic studies of organochlorine pesticides we used a Shimadzu GC-2010Plus gas chromatograph (Shimadzu, Japan) equipped with an automatic equilibrium vapor sample dispenser NT200N, electron-capture detector based on 63Ni an

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25

Ivanova, N. I. "Gas chromatograph for medical research." Izvestiâ vysših učebnyh zavedenij. Priborostroenie 64, no. 8 (2021): 674–79. http://dx.doi.org/10.17586/0021-3454-2021-64-8-674-679.

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26

Ullah, S. M. Rahmat, Masaki Takeuchi, and Purnendu K. Dasgupta. "Versatile Gas/Particle Ion Chromatograph." Environmental Science & Technology 40, no. 3 (2006): 962–68. http://dx.doi.org/10.1021/es051722z.

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27

Fox, John N., and Robert A. Shaner. "A simple computerized gas chromatograph." Journal of Chemical Education 67, no. 8 (1990): 694. http://dx.doi.org/10.1021/ed067p694.

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28

Hensley, J. L., and H. M. McNair. "Modification of a Gas Chromatograph for Capillary Supercritical Fluid Chromatography." Journal of Liquid Chromatography 9, no. 9 (1986): 1985–96. http://dx.doi.org/10.1080/01483918608078756.

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29

Wang, Xiao-Liang, Ming-Xu Zhang, Kun-Zhi Liu, and Xi-Ming Sun. "Temperature Control of Gas Chromatograph Based on Switched Delayed System Techniques." Mathematical Problems in Engineering 2014 (2014): 1–5. http://dx.doi.org/10.1155/2014/367629.

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We address the temperature control problem of the gas chromatograph. We model the temperature control system of the gas chromatograph into a switched delayed system and analyze the stability by common Lyapunov functional technique. The PI controller parameters can be given based on the proposed linear matrix inequalities (LMIs) condition and the designed controller can make the temperature of gas chromatograph track the reference signal asymptotically. An experiment is given to illustrate the effectiveness of the stability criterion.

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30

Banel, Anna, Marta Wasielewska, Monika Felchner-Żwirełło, and Bogdan Zygmunt. "Development of headspace–gas chromatography–flame ionization detection procedure to determine volatile fatty acids in zoo organic waste leachates." Water Science and Technology 63, no. 12 (2011): 2873–77. http://dx.doi.org/10.2166/wst.2011.516.

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In order to determine volatile fatty acids (short chain monocarboxylic acids with 2 to 6 carbon atoms in a molecule) in leachates formed in organic waste piles a procedure based on static headspace (HS) coupled with gas chromatography (GC) have been proposed and optimized. The conditions of HS extraction and sample introduction into a gas chromatograph as well as of chromatographic separation were considered. Using flame ionization detection LODs were of the order of 0.02– 0.37 mg/L. The analyzed leachate collecting on and close to a zoo organic waste pile contained VFAs (Volatile Fatty Acids)

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Prastio, Eko, and Aulia Huda Pinandita. "MENENTUKAN ZONA HIDROKARBON DENGAN PARAMETER MUD LOGGING UNIT SUMUR “A” LAPANGAN “L”." Petro : Jurnal Ilmiah Teknik Perminyakan 14, no. 2 (2025): 114–25. https://doi.org/10.25105/petro.v14i2.21150.

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Mud logging adalah kegiatan mendeteksi, mensirkulasikan dan memantau perpindahan mud dan cutting pada sumur selama pemboran berlangsung untuk menentukan potensi minyak dan gas. Gas Chromatograph merupakan salah satu gas detektor yang digunakan sebagai pendeteksi terkandungnya gas hidrokarbon C1 – C5 pada lumpur pemboran. Kenampakan hidrokarbon melalui gas chromatograph ini dapat dimasukan kedalam penghitungan untuk mendapatkan gas wetness ratio, liquid to heavy ratio, dan oil characteristic qualifier yang digunakan untuk mengidentifikasi dan interpretasi zona hidrokarbon dengan korelasi dengan

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Deutsch, D. G., and R. J. Bergert. "Evaluation of a benchtop capillary gas chromatograph-mass spectrometer for clinical toxicology." Clinical Chemistry 31, no. 5 (1985): 741–46. http://dx.doi.org/10.1093/clinchem/31.5.741.

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Abstract We evaluated the Hewlett-Packard 5995B benchtop capillary gas chromatograph-mass spectrometer (GC-MS) for its ability to identify drugs commonly detected and (or) measured in the clinical toxicology laboratory. Initial experiments indicated that the instrument as originally configured, with an isolation valve between the gas chromatograph and mass spectrometer, was unsatisfactory for the identification of hypnotics-sedatives. However, with the capillary inserted directly into the ion source, we could detect 10 ng of these drugs on a total-ion chromatogram. The software programs cause

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Коломиец (Kolomiets), Наталья (Natal'ya) Эдуардовна (Eduardovna), Наталья (Natal'ya) Юрьевна (Yur'evna) Абрамец (Abramets), Руслан (Ruslan) Анатольевич (Anatol'evich) Бондарчук (Bondarchuk), Валентина (Valentina) Германовна (Germanovna) Шириеторова (Shirietorova), Жаргал (Zhargal) Александрович (Aleksandrovich) Тыхеев (Tyheev), and Людмила (Lyudmila) Дмитриевна (Dmitrievna) Агеева (Ageeva). "COMPONENT COMPOSITION OF ESSENTIAL OIL OF PINE BUDS (PINUS SYLVESTRIS L.), GROWING IN THE URBAN ENVIRONMENT OF TOMSK REGION." chemistry of plant raw material, no. 1 (March 6, 2019): 181–90. http://dx.doi.org/10.14258/jcprm.2019014293.

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The component composition of pine buds essential oil, growing in the area of active economic activity in Tomsk region, has been studied. Essential oil from pine buds obtained by the method of distillation with the water steam. The component composition of the essential oil was studied by gas-liquid-chromatography-mass spectrometry on the gas chromatograph Agilent 6890 with quadrupole mass spectrometer (HP MSD 5973N). Chromatography conditions: 30-meter long quartz column HP-5MS with internal diameter 0.25 mm, film thickness of 0.25 µm (copolymer 5% diphenyl 95% dimethylsiloxane), carrier

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Zaitsev, A., N. Matsegora, S. Zaitsev, S. Kaminska, and V. Тikhenko. "APPLICATION OF GAS CHROMATOGRAPHY METHODS FOR ANALYSIS OF EXHALED AIR BY PATIENTS WITH RESPIRATORY DISEASES." Odes’kyi Politechnichnyi Universytet Pratsi 2, no. 64 (2021): 52–60. http://dx.doi.org/10.15276/opu.2.64.2021.07.

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. Improvement of gas chromatography methods for analyzing the exhaled air of patients when diagnosing the presence and development of pathologies of their respiratory organs is an urgent task. The aim of this work is to analyze proven and promising methods for monitoring the content of vaporous and (or) gaseous biological markers in the exhaled air of patients with respiratory pathologies, as well as the choice of optimal measurement techniques using gas chromatography methods. The analysis of scientific researches and publications in the field of modern methods of control of the content of va

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Hamilton-Kemp, T. R., J. H. Loughrin, and R. A. Andersen. "COLLECTION OF PLANT VOLATILES USING HEADSPACE METHODS." HortScience 25, no. 9 (1990): 1180c—1180. http://dx.doi.org/10.21273/hortsci.25.9.1180c.

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Two methods for collecting headspace vapors produced by plant samples are presented. The first involves entraining volatiles in a stream of air and trapping the entrained compounds on a porous polymer such as Tenax. The volatiles are recovered from the trap by solvent extraction or heat desorption and analysed by gas chromatography. A second method entails removing headspace vapor above plant material with a gas-tight syringe and injecting the sample directly into the gas chromatograph. An evaluation of the usefulness of these techniques will be presented.

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Dobrokhotov, Vladimir, and Alexander Larin. "Multisensory Gas Chromatography for Field Analysis of Complex Gaseous Mixtures." ChemEngineering 3, no. 1 (2019): 13. http://dx.doi.org/10.3390/chemengineering3010013.

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A novel approach to analysis of complex gaseous mixtures is presented. The approach is based on the utilization of a compact gas chromatograph in combination with an array of highly integrated and selective metal oxide (MOX) sensors. Thanks to the implementation of a multisensory detector, the device collects multiple chromatograms in a single run. The sensors in the integrated MEMS platform are very distinct in their catalytic properties. Hence, the time separation by chromatographic column is complemented by catalytic separation by a multisensory detector. Furthermore, the device can perform

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Jerpe, J., and A. Davis. "Ambient Capillary Chromatography of Volatile Organics With a Portable Gas Chromatograph." Journal of Chromatographic Science 25, no. 4 (1987): 154–57. http://dx.doi.org/10.1093/chromsci/25.4.154.

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Kaljurand, Mihkel, Jelena Gorbatšova, and Jekaterina Mazina-Šinkar. "A gas chromatograph for citizen science." Microchemical Journal 165 (June 2021): 106195. http://dx.doi.org/10.1016/j.microc.2021.106195.

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Lu, Chia-Jung, William H. Steinecker, Wei-Cheng Tian, et al. "First-generation hybrid MEMS gas chromatograph." Lab on a Chip 5, no. 10 (2005): 1123. http://dx.doi.org/10.1039/b508596a.

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Dziuban, J. A., J. Mróz, M. Szczygielska, et al. "Portable gas chromatograph with integrated components." Sensors and Actuators A: Physical 115, no. 2-3 (2004): 318–30. http://dx.doi.org/10.1016/j.sna.2004.04.028.

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Oberenko, A. V., S. V. Kachin, and S. A. Sagalakov. "Comparative study of plastic smoking mixtures containing synthetic cannabinoids using gas chromatography." Industrial laboratory. Diagnostics of materials 86, no. 8 (2020): 5–11. http://dx.doi.org/10.26896/1028-6861-2020-86-8-5-11.

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We propose an algorithm for comparative study of plastic smoking mixtures containing synthetic cannabinoids using gas chromatography in the following configuration: a Crystal 5000.2 chromatograph (Russia) with a quartz capillary column (L = 50 m,  = 0.32 mm) with a grafted phase based on polyethylene glycol modified with nitroterephthalic acid and a flame ionization detector. Plastic smoking mixtures (40 samples) seized from illegal circulation by officers of the Transport Department of the Ministry of Internal Affairs of Russia in the Siberian Federal District were used as test samples. Math

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Juszczak, Magdalena, and Mirosław Szyłak-Szydłowski. "Chromatographic Examinations in the Gas Network Odourised by Tetrahydrothiophene." Ecological Chemistry and Engineering S 26, no. 2 (2019): 265–77. http://dx.doi.org/10.1515/eces-2019-0019.

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Abstract The paper presents the results of the spread of the tetrahydrothiophene (THT) - used as odourant - in the gas network. Such analyses allow quick detection of leaks in networks, systems and devices of gas supply directly to consumers. The main goal of the study was to determine the effectiveness of the use of portable chromatograph and comparing it with a stationary odourant concentration analyser. Based on these studies, an attempt to determine the odouration zone for the selected city have been also taken. For this purpose, three series of measurements were made - in each series 13 p

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Zehner, James M., and Richard A. Simonaitis. "Gas Chromatographic Determination of CCRL583 Perfluorinated Alcohol Fumigant Residues." Journal of AOAC INTERNATIONAL 68, no. 4 (1985): 749–50. http://dx.doi.org/10.1093/jaoac/68.4.749.

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Abstract A gas chromatographic method is described for the determination of CCRL583 (l,l,l,3,3,4,4,4-octafluoro-2-(trifluoromethyl)-2-butanol). r The sample is extracted with acetonitrile and cleaned up by liquidliquid extraction, first with a basic aqueous solution and finally with an acid aqueous solution. The final organic layer is injected into a gas chromatograph equipped with a column packed with terephthalic acidterminated Carbowax 20M. Recovery of CCRL583 from fortified wheat and peanuts was 91-108%.

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Aue, Walter A., Bernard J. Flinn, Christopher G. Flinn, Veluppillai Paramasigamani, and Kathleen A. Russell. "Transformation and transmission of organotin compounds inside a gas chromatograph." Canadian Journal of Chemistry 67, no. 3 (1989): 402–10. http://dx.doi.org/10.1139/v89-063.

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A wide variety of mono-, di-, and tri-substituted tin compounds are transformed to, and transmitted as, chlorides, bromides, or iodides on injection into a gas chromatographic system doped with HCl, HBr, or HI, respectively. This transformation occurs directly from some thirty-odd analytes such as organotin oxides, hydroxides, organic esters, and other halides including fluorides. Three germanium compounds appear to behave similarly. A conventional, packed-column gas chromatographic set-up with flame photometric or flame ionization detector can tolerate the necessary acid doping. Compounds suc

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Kazantseva, I. L., V. V. Egorova, and D. M. Osokin. "Application of Chromatographic Methods in Forensic Examination of Wine Products." Theory and Practice of Forensic Science 19, no. 2 (2024): 40–48. http://dx.doi.org/10.30764/1819-2785-2024-2-40-48.

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. The article overviews the changes in the Russian legislation regarding the terminology and classification of wine products, which should be considered when solving diagnostic and classification problems within the framework of complex examinations (commodity expertise of food products and forensic examination of materials, substances and products of alcoholcontaining liquids). The authors stress the importance and relevance of chromatographic methods in wine products examination. They also present the results of testing a method for organic acids determination in wine using JetChrom liquid c

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Anders Apel, Miriam, Rodney A.F. Rodrigues, Luiz Alberto Lira Soares, and Amélia Terezinha Henriques. "QUANTIFICATION OF THE COMPONENTS IN COMMERCIAL ESSENTIAL OIL OF EUCALYPTUS GLOBULUS LABILL. BY GAS CHROMATOGRAPHY – GC-FID AND GC-MS." Drug Analytical Research 1, no. 2 (2017): 9–14. http://dx.doi.org/10.22456/2527-2616.79217.

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Leaves of Eucalytus globulus Labill are characterized by the presence of essential oil, in which 1,8-cineole is the main component. The oil is used as an expectorant for symptomatic treatment of mild inflammation of the respiratory tract and bronchitis. This work addresses the chemical quantification of the constituents of E. globulus essential oil by gas chromatography. Commercial samples were diluted and analyzes by gas chromatograph coupled to flame ionization detector (GC-FID). The chromatographic separation was performed on a fused silica capillary (LM-20, 30 m x 0.25 mm x 0.25 μm film th

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Penton, Z. "Headspace measurement of ethanol in blood by gas chromatography with a modified autosampler." Clinical Chemistry 31, no. 3 (1985): 439–41. http://dx.doi.org/10.1093/clinchem/31.3.439.

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Abstract An autosampler intended for liquid injection into a gas chromatograph was modified to serve as an automatic headspace sampler by replacing the syringe with a 100-microL gas-tight syringe and shortening the needle that normally enters the vials for sampling. Instead of the usual 1.0 to 1.5 mL of liquid sample, the vials contained 200 microL of liquid; the vapor above the liquid was injected into the gas chromatograph. Blood samples from California drivers were analyzed for ethanol by using the modified autosampler and the values were compared with those obtained by two other methods: t

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Korobeynikov, S.M., and M.N. Lyutikova. "Investigation of Technological Operations Affecting the Determination of Concentration of Ionol Additive in Insulating Oil in High-Voltage Equipment." Problemele Energeticii Regionale 1(36) (April 15, 2018): 96–105. https://doi.org/10.5281/zenodo.1217282.

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Ionol oxidation inhibitor level control is included into normative indicators list for diagnostics of internal insulation condition of any oil-filled high voltage device. Concentration of oxidation inhibitor in dielectric liquid should be from 0,08 % to 0,40 % mass. Power supply network chemistry laboratories use such methods as spectroscopy, spectrometry, chromatography and many others. Russian insulation service specialists use the method of ionol concentration measurement in oils based on gas-liquid chromatography. In the first place it is related to the fact that gas chromatographs are ins

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Setoguchi, Yasuhiro, Toshio Itoh, Toshio Miwa, and Woosuck Shin. "30am2-C-7 Portable Gas Chromatograph for Breath Gas Analysis." Proceedings of the Symposium on Micro-Nano Science and Technology 2015.7 (2015): _30am2—C—7—_30am2—C—7. http://dx.doi.org/10.1299/jsmemnm.2015.7._30am2-c-7.

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Hail, Mark E., and Richard A. Yost. "Compact gas chromatograph probe for gas chromatography/mass spectrometry utilizing resistively heated aluminum-clad capillary columns." Analytical Chemistry 61, no. 21 (1989): 2410–16. http://dx.doi.org/10.1021/ac00196a018.

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