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Journal articles on the topic 'Organic compounds – Analysis'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 July 2024

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1

Ewinger, H. P., J. Goschnick, and H. J. Ache. "Analysis of organic compounds with SNMS." Fresenius' Journal of Analytical Chemistry 341, no. 1-2 (1991): 17–19. http://dx.doi.org/10.1007/bf00322099.

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2

Dodson, R. E., J. I. Levy, J. P. Shine, J. D. Spengler, and D. H. Bennett. "Indoor Source Analysis of Volatile Organic Compounds." Epidemiology 17, Suppl (November 2006): S352—S353. http://dx.doi.org/10.1097/00001648-200611001-00935.

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3

Mercader, Andrew G., Pablo R. Duchowicz, Miguel A. Sanservino, Francisco M. Fernández, and Eduardo A. Castro. "QSPR analysis of fluorophilicity for organic compounds." Journal of Fluorine Chemistry 128, no. 5 (May 2007): 484–92. http://dx.doi.org/10.1016/j.jfluchem.2006.12.011.

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4

Reeves, Eoghan P., and Jens Fiebig. "Abiotic Synthesis of Methane and Organic Compounds in Earth’s Lithosphere." Elements 16, no. 1 (February 1, 2020): 25–31. http://dx.doi.org/10.2138/gselements.16.1.25.

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Accumulation of molecular hydrogen in geologic systems can create conditions energetically favorable to transform inorganic carbon into methane and other organic compounds. Although hydrocarbons with a potentially abiotic origin have been proposed to form in a number of crustal settings, the ubiquitous presence of organic compounds derived from biological organic matter presents a challenge for unambiguously identifying abiotic organic molecules. In recent years, extensive analysis of methane and other organics in diverse geologic fluids, combined with novel isotope analyses and laboratory sim

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5

SOBOLEVA, E. A., Ya A. VISURKHANOVA, N. M. IVANOVA, М. Е. BEISENBEKOVA, and S. O. KENZHETAEVA. "ULTRAFINECOPPER AND NICKEL POWDERS INTHE ELECTRO-CATALYTICHYDROGENATIONOF ORGANIC COMPOUNDS." Chemical Journal of Kazakhstan 74, no. 2 (June 30, 2021): 32–48. http://dx.doi.org/10.51580/2021-1/2710-1185.26.

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Ultrafine copper and nickel powders are synthesized by a chemical reduction of the metal cations from their salts in an aqueous ethanol solution without and with the addition of a polymer stabilizer (polyvinylpyrrolidone and polyvinyl alcohol). The structure and morphological features of the prepared metal powders were investigated by X-ray phase analysis and electron microscopy. The electrocatalytic properties of the Cu and Ni powders have been studied in the electrohydrogenation of acetophenone, nitrobenzene, p-nitroaniline, and cyclohexanone. A higher electrocatalytic activity of Cu powders

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6

Ren, Shijun, Arima Das, and Eric Lien. "QSAR analysis of membrane permeability to organic compounds." Journal of Drug Targeting 4, no. 2 (January 1996): 103–7. http://dx.doi.org/10.3109/10611869609046268.

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7

Hušák, M., and J. Had. "Quantitative Analysis of Organic Compounds by Rietveld Method." Materials Science Forum 166-169 (July 1994): 745–48. http://dx.doi.org/10.4028/www.scientific.net/msf.166-169.745.

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8

Mishima, Satoko, and Tsutomu Nakagawa. "Analysis of Hydrophilic Volatile Organic Compounds by Pervaporation." membrane 25, no. 3 (2000): 130–34. http://dx.doi.org/10.5360/membrane.25.130.

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9

Aragón, P., J. Atienza, and M. D. Climent. "Analysis of Organic Compounds in Air: A Review." Critical Reviews in Analytical Chemistry 30, no. 2-3 (April 2000): 121–51. http://dx.doi.org/10.1080/10408340091164207.

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10

Mestres, M., O. Busto, and J. Guasch. "Analysis of organic sulfur compounds in wine aroma." Journal of Chromatography A 881, no. 1-2 (June 2000): 569–81. http://dx.doi.org/10.1016/s0021-9673(00)00220-x.

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11

Dewulf, Jo, Herman Van Langenhove, and Gyula Wittmann. "Analysis of volatile organic compounds using gas chromatography." TrAC Trends in Analytical Chemistry 21, no. 9-10 (September 2002): 637–46. http://dx.doi.org/10.1016/s0165-9936(02)00804-x.

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12

Brauch, H. J. "The analysis of polar organic compounds in water." Fresenius' Journal of Analytical Chemistry 343, no. 1 (1992): 6–7. http://dx.doi.org/10.1007/bf00331935.

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13

Ferrey, Mark L., and Rex E. Lovrien. "Microbial calorimetric analysis (MCA) of aqueous organic compounds." Talanta 40, no. 2 (February 1993): 127–34. http://dx.doi.org/10.1016/0039-9140(93)80311-e.

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14

Lewis, T. E., A. B. Crockett, and R. L. Siegrist. "Soil sampling and analysis for volatile organic compounds." Environmental Monitoring and Assessment 30, no. 3 (May 1994): 213–46. http://dx.doi.org/10.1007/bf00546202.

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15

Snethlage, H. C. S. "Oxidimetric analysis of binary mixtures of organic compounds." Recueil des Travaux Chimiques des Pays-Bas 55, no. 1 (September 3, 2010): 58–60. http://dx.doi.org/10.1002/recl.19360550109.

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16

Spokas, Kurt A., Jeffrey M. Novak, Catherine E. Stewart, Keri B. Cantrell, Minori Uchimiya, Martin G. DuSaire, and Kyoung S. Ro. "Qualitative analysis of volatile organic compounds on biochar." Chemosphere 85, no. 5 (October 2011): 869–82. http://dx.doi.org/10.1016/j.chemosphere.2011.06.108.

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17

Gruenheid, S., U. Huebner, and M. Jekel. "Impact of temperature on biodegradation of bulk and trace organics during soil passage in an indirect reuse system." Water Science and Technology 57, no. 7 (April 1, 2008): 987–94. http://dx.doi.org/10.2166/wst.2008.207.

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Investigations on the behavior of bulk organics and trace organic compounds in a temperature controlled soil column system are reported. Objective of the research was to assess the importance of temperature for the degradation of bulk and trace organics. The analysis of the bulk organic behavior showed a fast mineralization of easily degradable organic carbon in the first few centimetres of the columns, which does not seem to be temperature-dependent. Along the further infiltration path an influence of the different temperatures on the bioactivity was clearly visible. However, a significant in

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18

Suzuki, Norimichi, Hiroko Nakaoka, Masamichi Hanazato, Yoshitake Nakayama, Kayo Tsumura, Kazunari Takaya, Emiko Todaka, and Chisato Mori. "Indoor Air Quality Analysis of Newly Built Houses." International Journal of Environmental Research and Public Health 16, no. 21 (October 28, 2019): 4142. http://dx.doi.org/10.3390/ijerph16214142.

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Recently, people have become increasingly aware of potential health issues related to indoor environments. In this study, we measure the concentrations of various volatile organic compounds, carbonyl compounds, and semi-volatile organic compounds, as well as the ventilation rates, in 49 new houses with light-gauge steel structures one week after completion. The proper indoor air quality of new residential environments can be ensured by characterizing people’s exposure to certain chemicals and assessing future risks. Our results show that the concentrations of the measured compounds were lower

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19

Apriyanto, Donni Kis, and Mitrayana Mitrayana. "SERAPAN SENYAWA ORGANIK VOLATIL SEBAGAI BIOMARKER PENYAKIT KANKER PARU: SUATU MINI REVIEW." Biomedika 12, no. 2 (August 30, 2020): 58–64. http://dx.doi.org/10.23917/biomedika.v12i2.10114.

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ABSTRAKUlasan ini merupakan hasil studi literatur yang memberikan tinjauan umum serapan senyawa-senyawa organik volatil yang dianggap sebagai biomarker kanker paru. Senyawa-senyawa ini dapat menyerap pada panjang gelombang tertentu. Senyawa-senyawa organik volatil yang teridentifikasi didaftar dan dijabarkan panjang gelombang yang dapat mereka serap. Studi literatur ini menyajikan kelompok senyawa-senyawa organik volatil dapat menyerap pada rentang panjang gelombang inframerah. Hasil ulasan ini mungkin dapat bermanfaat untuk pengembangan skrinning kanker paru dengan menggunakan alat spektrosko

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20

Duan, Shengnan, Xiaoyan Tang, Wusun Li, and Xinyuan Huang. "Analysis of the Differences in Volatile Organic Compounds in Different Muscles of Pork by GC-IMS." Molecules 28, no. 4 (February 11, 2023): 1726. http://dx.doi.org/10.3390/molecules28041726.

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As the main consumed meat of Chinese residents, pork has a unique flavor, but the internal volatile organic compounds that cause the flavor differences between pork muscles are not clear at present. In this study, four muscles of Duroc × (Landrace × Yorkshire) pigs (loin, ham, shoulder and belly) were used as experimental subjects. Through the analysis of volatile organic compounds in four muscles of pork, the internal volatile organic compounds of different muscles of pork were discussed. Gas chromatography-ion mobility spectrometry was employed to analyze the four muscles, and volatile organ

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21

WONGLEE, S., H. FUKUDA, J. HASEGAWA, and Y. OGURI. "CHEMICAL SPECIATION OF CHLORINE PRESENT IN PARTICULATE COMBUSTION PRODUCTS OF ORGANIC CHLORINE COMPOUNDS BY EMPLOYING HIGH-RESOLUTION PIXE ANALYSIS." International Journal of PIXE 21, no. 01n02 (January 2011): 55–62. http://dx.doi.org/10.1142/s0129083511002161.

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The chemical speciation of chlorine ( Cl ) in particulate matter samples produced by the laboratory burning of organic Cl compounds was tested by employing the high-resolution measurement of K β X-rays based on a wavelength-dispersive proton-induced X-ray emission (WD-PIXE) technique. Targets for proton irradiation were prepared by depositing particulate burning products on aluminum foils placed on a simple barrel burner. Standard inorganic ( NaCl , MgCl 2, CaCl 2, NH 4 Cl , and AlCl 3) and organic (polyvinyl chloride and polyvinylidene chloride) Cl compounds were prepared for spectral compari

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22

Farzaliyev, V. M., and M. N. Aliyeva. "Feature analysis of vapor-phase chromatography of high boiler organic compounds." Azerbaijan Oil Industry, no. 4 (April 15, 2020): 40–47. http://dx.doi.org/10.37474/0365-8554/2020-4-40-47.

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The paper presents the physical-chemical features of the vapor-phase chromatography method for the analysis of polar high boiler organic compounds. The application conditions of vapor-phase chromatography for the research of petrochemical synthesis products are analyzed. The mechanism of chromatographic seperation of compounds in the vapor-liquid-solid phase system is reviewed. The physical-chemical parameters of application of vapor-phase chromatography are provided. It is shown that liquid crystals can be used for the efficiency increase of the analysis of high boiler organic compounds as ha

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23

Mecca, Marisabel, Rocco Racioppi, Vito Antonio Romano, Licia Viggiani, Richard Lorenz, and Maurizio D’Auria. "Volatile Organic Compounds in Dactylorhiza Species." Compounds 2, no. 2 (April 12, 2022): 121–30. http://dx.doi.org/10.3390/compounds2020009.

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HS-SPME-GC–MS analysis of the scent of Dactylorhiza viridis revealed the presence of verbenone (28.86%), caryophyllene (25.67%), β-terpineol (9.48%), and δ-cadinene (6.94%). In the scent of Dactylorhiza romana β-ocimene (18.69%), pentadecane (18.40%), α-farnesene (14.65%), and isopropyl 14-methylpentadecanoate (14.32%) were found. Dactylorhiza incarnata contained tetradecane (11.07%), pentadecane (28.40%), hexadecane (19.53%), heptadecane (17.33%), and α-cubenene (11.48%). Analysis of Dactylorhiza saccifera showed the presence of caryophyllene (17.38%), pentadecane (6.43%), hexadecane (6.13%),

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24

Rae, Ian D. "Elemental Micro-analysis of Organic Compounds: the Australian Experience." Historical Records of Australian Science 27, no. 2 (2016): 116. http://dx.doi.org/10.1071/hr16017.

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Combustion methods for elemental analysis developed in Europewere adopted by Australian chemists, some of whom undertook training in the Pregl laboratory in Graz, the centre of microanalytical expertise. Microanalytical services developed slowly at the Universities of Sydney and Melbourne. After World War 2 the University of Melbourne and Australia's Council for Scientific and Industrial Research combined to bring German experts to Australia. One of them, Dr K. W. Zimmermann, headed the Australian Microanalytical Service in Melbourne that met the needs of Australian chemists and some overseas

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25

Dyshlyuk, Lyubov, Anastasia Dmitrieva, Svetlana Ivanova, Yuliya Golubtsova, and Lev Ostroumov. "Panax ginseng callus, suspension, and root cultures: extraction and qualitative analysis." Foods and Raw Materials 8, no. 2 (September 30, 2020): 369–76. http://dx.doi.org/10.21603/2308-4057-2020-2-369-376.

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Introduction. In recent years, scientists have been actively searching for medicinal plants containing biologically active substances with geroprotective properties to treat diseases of old age, in particular cancer, diabetes, cardiovascular diseases, and others. Ginseng (Panax ginseng L.) is a promising source of geroprotective compounds. We aimed to select optimal parameters for extracting organic compounds from ginseng callus, suspension, and root cultures and analyze their qualitative composition. Study objects and methods. We studied ginseng callus, suspension, and root cultures, as

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26

Lukovtsev, V. P., N. V. Lukovtseva, and V. A. Semenova. "Electrochemical Test System for Analysis of Sulfur-Containing Organic Substances." Herald of the Bauman Moscow State Technical University. Series Natural Sciences, no. 82 (2019): 88–95. http://dx.doi.org/10.18698/1812-3368-2019-1-88-95.

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The paper discusses selection of a set of metals for an electrochemical test system used for the detection of sulfur-containing organic substances. Analytical studies of organic sulfur compounds are very important since these compounds are widely used in medicine, biology, oil refining industry, etc. Quantitative determination and identification of sulfur-containing substances is essential for solving environmental problems. The electrochemical test system for analysis of organic substances is a solution containing a set of cations of various metals that have the ability to form complex compou

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27

Sun, Chuang, A. Khalid, H. M. Usman, A. Ahmad, M. K. Siddiqui, and S. A. Fufa. "On Neighborhood Degree-Based Topological Analysis of Polyphenylene Network." Mathematical Problems in Engineering 2022 (February 21, 2022): 1–14. http://dx.doi.org/10.1155/2022/1951226.

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Organic compounds such as polyphenylene are very important and useful for the synthesis of many new organic compounds due to their physio-chemical properties. To ascertain these properties, one can use QSPR/QSAR methods which necessitate the computation of topological indices. The topological indices based on two newly introduced abstract notions of ev-degree and ve-degree are in practice to model numerous chemical properties as well as physical properties of organic, inorganic, hybrid, and biological compounds. In this study, we computed a certain number of topological indices for the chemica

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28

Oshima, Naohiro, Maiko Tahara, Shinobu Sakai, and Yoshiaki Ikarashi. "Analysis of Volatile Organic Compounds Emitted from Bedding Products." BPB Reports 4, no. 6 (2021): 182–92. http://dx.doi.org/10.1248/bpbreports.4.6_182.

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29

Long, Jimiao, Lei Deng, and Defu Che. "Analysis on organic compounds in water leachate from biomass." Renewable Energy 155 (August 2020): 1070–78. http://dx.doi.org/10.1016/j.renene.2020.04.033.

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30

Polzin, Gregory M., Rachel E. Kosa-Maines, David L. Ashley, and Clifford H. Watson. "Analysis of Volatile Organic Compounds in Mainstream Cigarette Smoke." Environmental Science & Technology 41, no. 4 (February 2007): 1297–302. http://dx.doi.org/10.1021/es060609l.

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31

Lee, Joon-Woo, and In-Hyeong Yeo. "Integrated pulsed amperometry for the analysis of organic compounds." Microchemical Journal 70, no. 3 (December 2001): 173–77. http://dx.doi.org/10.1016/s0026-265x(01)00127-8.

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32

Ghaoui, Labib. "Analysis of semivolatile organic compounds by headspace gas chromatography." Journal of Chromatography A 642, no. 1-2 (July 1993): 389–94. http://dx.doi.org/10.1016/0021-9673(93)80103-f.

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33

Först, C., L. Stieglitz, W. Roth, and S. Kuhnmünch. "Quantitative Analysis of Volatile Organic Compounds in Landfill Leachates." International Journal of Environmental Analytical Chemistry 37, no. 4 (December 1989): 287–93. http://dx.doi.org/10.1080/03067318908026905.

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34

Lopes, Thomas J., James D. Fallon, and Terry L. Maluk. "Compositing Water Samples for Analysis of Volatile Organic Compounds." Journal of Environmental Engineering 126, no. 8 (August 2000): 769–73. http://dx.doi.org/10.1061/(asce)0733-9372(2000)126:8(769).

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35

Pyrzyńska, Krystyna. "Speciation analysis of some organic selenium compounds. A review." Analyst 121, no. 8 (1996): 77R—83R. http://dx.doi.org/10.1039/an996210077r.

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36

Coughlan, Rebecca, Kieran Kilcawley, Iwona Skibinska, Siobhán Moane, and Tracey Larkin. "Analysis of volatile organic compounds in Irish rapeseed oils." Current Research in Food Science 6 (2023): 100417. http://dx.doi.org/10.1016/j.crfs.2022.100417.

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37

Holzapfel, W., and K. Budde. "Ultratrace analysis of volatile organic compounds in semiconductor industry." Fresenius' Journal of Analytical Chemistry 343, no. 9-10 (1992): 769–70. http://dx.doi.org/10.1007/bf00633563.

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38

Zhang, GuoJuan, XiaoXi Guo, ShuLing Wang, XueLan Wang, YanPing Zhou, and Hui Xu. "New graphene fiber coating for volatile organic compounds analysis." Journal of Chromatography B 969 (October 2014): 128–31. http://dx.doi.org/10.1016/j.jchromb.2014.08.016.

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39

Roeraade, J., and S. Blomberg. "New methodologies in trace analysis of volatile organic compounds." Journal of High Resolution Chromatography 12, no. 3 (March 1989): 138–41. http://dx.doi.org/10.1002/jhrc.1240120305.

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40

Bui, Quang Minh, Huynh Nhat Minh Nguyen, Van Nhan Le, Thanh Thao Nguyen, Ngoc Minh Truong, Ngoc Tung Nguyen, Quang Huong Le, and Quang Trung Nguyen. "AIQS-DB: Revolutionizing the Simultaneous Analysis of Organic Compounds." Applied Sciences 13, no. 14 (July 10, 2023): 8031. http://dx.doi.org/10.3390/app13148031.

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This paper reports a database, namely, the Automated Identification and Quantification Database System (AIQS-DB), which consists of three components, including retention times, mass data, and calibration curves, without the requirement to analyze standard substances. The AIQS-DB that are pre-registered in the database are used as the replacement for the process of measuring chemical standards. Both the target and unknown substances in the real samples were determined by the same conditions of GC-MS as those used for the initial database register in the AIQS-DB system. The article provides a co

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41

Gong, Gui Zhen, Ji Ming Chu, Xian Yong Wei, and Zhi Min Zong. "Analysis of Extraction of Coal Oxidation Residue in NaOCl." Advanced Materials Research 724-725 (August 2013): 1103–6. http://dx.doi.org/10.4028/www.scientific.net/amr.724-725.1103.

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Sequential extraction of four coal oxidation residues (COR) from aqueous NaOCl solution with petroleum ether (PE), carbon disulfide (CS2), acetone and methanol were investigated. The results suggest that methanol is an effective extraction solvent, giving the highest extraction yields for four COR. The extraction fractions were analyzed by GC/MS. It is found that no compounds, except for F1 of HL and XL , F2 of four COR, were detected. In total, 89 organic compounds were detected in F1 of HL and XL, 23 organic compounds in F2 from four COR. Most of which were arenes (As), normal alkanes (NAs)

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42

Albert, M., C. Demesmay, and J. L. Rocca. "Analysis of organic and non-organic arsenious or selenious compounds by capillary electrophoresis." Fresenius' Journal of Analytical Chemistry 351, no. 4-5 (1995): 426–32. http://dx.doi.org/10.1007/bf00322913.

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43

Biemann, K. "Analytical techniques for trace organic compounds-III: Mass spectrometry in trace organic analysis." Pure and Applied Chemistry 63, no. 11 (January 1, 1991): 1637–46. http://dx.doi.org/10.1351/pac199163111637.

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44

Zhou, Shiqi, Duo Feng, Yaxi Zhou, Hao Duan, Yue He, Yongjun Jiang, and Wenjie Yan. "Characteristic Volatile Organic Compound Analysis of Different Cistanches Based on HS-GC-IMS." Molecules 27, no. 20 (October 11, 2022): 6789. http://dx.doi.org/10.3390/molecules27206789.

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Cistanche is a medicinal and food homologous substance with a long history of consumption and medicinal use in China. In order to further understand the volatile organic compound differences between different cistanches, this study selected oil cistanche, blood cistanche and cistanche tubulosa in Xinjiang for HS-GC-IMS volatile organic compounds, and established the characteristic fingerprints of different cistanches for organic content and characteristic organic compound analysis. PCA and cluster analysis were used to study the similarity between different cistanches. After qualitative analys

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45

Urra, J., P. Poirrier, R. Chamy, J. Segovia, and Y. Lesty. "Analysis of the methodology to determine anaerobic toxicity: evaluation of main compounds present in wastewater treatment plants (WWTPs)." Water Science and Technology 57, no. 6 (March 1, 2008): 857–62. http://dx.doi.org/10.2166/wst.2008.105.

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The influence of the concentration of biomass on the level of inhibition and anaerobic degradation kinetics in batch systems was studied with toxic compounds that can generate destabilization in the operation of sludge anaerobic digesters. The compounds were grouped in four families; long chain fatty acids, polycyclic aromatic hydrocarbons, linear alkylbenzene sulphonates and organic acids. For the organic acids, there is no effect due to the biomass concentration variation, therefore it is a competitive inhibition; but that doesn't happen with the remaining compounds, where there is a depende

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46

Dundek, Peter, Ladislav Holík, Tomáš Rohlík, Ladislav Hromádko, Valerie Vranová, Klement Rejšek, and Pavel Formánek. "Methods of plant root exudates analysis: a review." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 59, no. 3 (2011): 241–46. http://dx.doi.org/10.11118/actaun201159030241.

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The aim of this review is to summarise current knowledge on methods being used to determine individual compounds and properties of water-soluble plant root exudates. These compounds include amino acids, organic acids and simple sugars, as well as polysaccharides, proteins and organic substances. Qualitative composition of water-soluble root exudates and exudation rate are commonly measured with the aim of consequent synthetic preparation of plant root exudates to be supplied to soil to create artificial rhizosphere for different experimental purposes. Root exudates collection usually requires

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47

Khoddami, Ali, Meredith Wilkes, and Thomas Roberts. "Techniques for Analysis of Plant Phenolic Compounds." Molecules 18, no. 2 (February 19, 2013): 2328–75. http://dx.doi.org/10.3390/molecules18022328.

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48

Naraoka, Hashiguchi, Sato, and Hamase. "New Applications of High-Resolution Analytical Methods to Study Trace Organic Compounds in Extraterrestrial Materials." Life 9, no. 3 (July 26, 2019): 62. http://dx.doi.org/10.3390/life9030062.

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Organic compounds are present as complex mixtures in extraterrestrial materials including meteorites, which may have played important roles in the origin of life on the primitive Earth. However, the distribution and formation mechanisms of meteoritic organic compounds are not well understood, because conventional analytical methods have limited resolution and sensitivity to resolve their molecular complexity. In this study, advanced instrumental development and analyses are proposed in order to study the trace organic compounds of extraterrestrial materials: (1) a clean room environment to avo

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49

Wang, Xiaohua, and Xin He. "Cluster Analysis of Soluble Organic Fractions in Two Low-Rank Coals." Applied Sciences 12, no. 22 (November 14, 2022): 11562. http://dx.doi.org/10.3390/app122211562.

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A brief overview of the composition and structure of soluble organic compounds as well as organic macromolecules in coal is sufficient to support the development of the coal chemical industry and realize the clean, effective, and high value-added exploitation of coal. In this study, 14 groups of extracts were analyzed by a gas chromatograph-mass spectrometer; seven stages of solvent-graded extraction were carried out on two typical low-rank coals, and the extracted substance spectrum data were processed by principal component analysis and cluster analysis to investigate the molecular makeup an

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50

Mounia Zine, Mounia Zine, Amel Bouakkadia Amel Bouakkadia, and Leila Lourici and Djelloul Messadi Leila Lourici and Djelloul Messadi. "Modeling and Prediction of Gas Chromatography Relative Retention Times of Volatile Organic Compounds." Journal of the chemical society of pakistan 42, no. 3 (2020): 447. http://dx.doi.org/10.52568/000645.

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The theme of this paper is to foresee relative retention time of 122 volatile organic compounds. QSRR analysis was accomplished on a serial of 122 VOCs. Multiple Linear Regression (MLR) and support vector machine (SVM) methods were used to build linear and nonlinear (QSRR) models, respectively, which correlate the (RTT) values of these chemical substance to their structural descriptors. At first, the data set was separated using Kennard and Stone algorithm into a training set (92 chemicals) and a test set (30 chemicals) for statistical external validation. The five-dimensional models were deve

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