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Journal articles on the topic 'Chromatography of aromatic amines'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Luceri, Francesca, Giuseppe Pieraccini, Gloriano Moneti, and Piero Dolara. "Primary Aromatic Amines from Side-Stream Cigarette Smoke are Common Contaminants of Indoor Air." Toxicology and Industrial Health 9, no. 3 (1993): 405–13. http://dx.doi.org/10.1177/074823379300900302.

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A very sensitive mass-spectrometry method has been developed for the analysis of aromatic amines in tobacco smoke and in indoor air. Cigarettes were smoked with a smoking machine; the anwies from the smoke were trapped in a 5% HCl water solution containing internal standards and detected by gas chromatography/mass spectrometry in the selected-ion-monitoring (SIM) mode. The amines measured were the following: aniline. 2-toluidine, 3-toluidine, 4-toluidine, 2-ethylaniline, 3-ethylaniline, 4-ethylaniline, 2,3-dimethylaniline, 2,4-dimethylaniline, 2,5-dimethylaniline, 2,6-dimethylaniline, 1-naphth

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2

Sun, Jian Qi, Ming Tang, and Jun Dai. "Determination of Aromatic Amines in Wastewater by Dispersive Liquid-Liquid Microextraction Coupled to Capillary Gas Chromatography." Advanced Materials Research 881-883 (January 2014): 631–34. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.631.

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A simple and reliable method combining dispersive liquid-liquid microextracion (DLLME) with gas chromatography (GC) using flame ionization detection (FID) was developed for the simultaneous determination of aniline (AL),o-toluidine (o-TLD),N,N-dimethylaniline (N,N-DAL),p-chloroaniline (p-CAL), andp-nitroaniline (p-NAL) in wastewater. For this purpose, dispersive liquid-liquid microextraction (DLLME) was applied as a sample preparation technique. The DLLME conditions such as the types and volume of extraction solvent, the types and volume of the disperser solvent, pH value and salt addition wer

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3

D., K. Singh, Singh Shalini, and Srivastava Meenakshi. "Chromatography of aromatic amines on thin layers of zinc ferrocyanide-silica gel G with hybrid CTAB-alcohol-water mobile phase." Journal of Indian Chemical Society Vol. 82, Mar 2005 (2005): 250–53. https://doi.org/10.5281/zenodo.5826999.

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Department of Chemistry. Harcourt Butler Technological Institute, Kanpur-208 002, India E-mail : dhruvksl23@rediffmail.com                             Fax: 91-512-545312 <em>Manuscript received 6 February 2004. revised 9 September 2004. accepted 24 November 2004</em> Thin layer chromatography (TLC) of twenty aromatic amines on zinc ferrocyanide-silica gel G with CTAB or Brij 35-alcohol-water mobile phases has been studied. The effect of surfactant (CTAB) concentration below and above its critical micellar concentration

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4

Baranitharan, Mathalaimuthu, Barbara Sawicka, and Jayapal Gokulakrishnan. "Phytochemical Profiling and Larval Control of Erythrina variegata Methanol Fraction against Malarial and Filarial Vector." Advances in Preventive Medicine 2019 (April 16, 2019): 1–9. http://dx.doi.org/10.1155/2019/2641959.

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Erythrina variegata (E. variegata) bioactive chemical has been the potential to be utilized as a good, eco-friendly approach for the control of mosquito population. In the present investigation, methanol extract using insecticidal compounds isolated against mosquito larvae kill assay was carried out. Secondary metabolism was characterized by thin layer chromatography, column chromatography, Fourier transform-infrared spectroscopy, gas chromatography-mass spectral, and identification of compound. Mosquito immature third instar larval, Anopheles stephensi, and Culex quinquefasciatus have been ex

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5

Janda, V., J. Kříž, J. Vejrosta, and K. D. Bartle. "Supercritical fluid extraction and chromatography of aromatic amines." Journal of Chromatography A 669, no. 1-2 (1994): 241–45. http://dx.doi.org/10.1016/0021-9673(94)80354-4.

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6

Ouyang, Yun-fu, Hai-bo Li, Hong-bing Tang, Yi Jin, and Gui-ying Li. "A reliable and sensitive LCMS-IT-TOF method coupled with accelerated solvent extraction for the identification and quantitation of six typical heterocyclic aromatic amines in cooked meat products." Analytical Methods 7, no. 21 (2015): 9274–80. http://dx.doi.org/10.1039/c5ay01236h.

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7

Chuang, Gary, Hua-Hsuan Huang, Yu-Feng Chen, and Guang-Hao Niu. "Photoinduced Reduction of Nitrobenzenes to Primary Aromatic Amines." Synlett 28, no. 10 (2017): 1191–94. http://dx.doi.org/10.1055/s-0036-1588953.

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Primary aromatic amines were synthesized from the corresponding nitrobenzenes via photoinduced reduction. The reaction was found to be effective when nitrobenzenes with electron-withdrawing substituents were irradiated with a broad band of UV light centered at 306 nm. When reactions are completed, products could be isolated by acid–base extraction or by column chromatography. This presenting photoreaction procedure for the synthesis of primary aromatic amines from the corresponding nitrobenzenes proceeds without the need of a sensitizer in isopropanol or THF. Without the usage of catalysts, or

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8

Canales, Romina, Leonardo Mariño-Repizo, Mario Reta, and Soledad Cerutti. "Multi-response optimization of a green solid-phase extraction for the analysis of heterocyclic aromatic amines in environmental samples." Analytical Methods 12, no. 11 (2020): 1504–13. http://dx.doi.org/10.1039/c9ay02712b.

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A method for the multi-response optimization of a green and efficient solid phase extraction treatment combined with liquid chromatography-tandem mass spectrometry was developed for the quantification of ten heterocyclic aromatic amines in waters.

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9

Dabhi, Ranjitsinh C., Unnati P. Patel, Vaibhavi B. Rathod, Siddharth N. Shah, and Jayesh J. Maru. "Process optimization for acid-amine coupling: a catalytic approach." Current Chemistry Letters 12, no. 1 (2023): 133–40. http://dx.doi.org/10.5267/j.ccl.2022.8.010.

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Proficient routes were devised for coupling different aromatic/aliphatic acids with amines to form amide linkage using various catalysts. Under the optimized reaction conditions, highest conversion was possible without formation of any by-products. All synthesized compounds were purified using column chromatography and characterized by mass spectrometry, nuclear magnetic resonance spectrometry and liquid chromatography-mass spectrometric analysis.

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10

Torres-Cartas, S., Y. Martín-Biosca, R. M. Villanueva-Camañas, S. Sagrado, and M. J. Medina-Hernández. "Biopartitioning micellar chromatography to predict mutagenicity of aromatic amines." European Journal of Medicinal Chemistry 42, no. 11-12 (2007): 1396–402. http://dx.doi.org/10.1016/j.ejmech.2007.02.022.

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11

RAJEEV, JAIN, and GUPTA SEEMA. "Rapid Thin Layer Chromatographic Aromatic Amines using Surfactants Separation of some Aromatic Amines using Surfactants." Journal of Indian Chemical Society Vol. 71, Nov 1994 (1994): 709–10. https://doi.org/10.5281/zenodo.5897716.

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School of Studies in Chemistry, Jiwaji University, Gwalior-474 011 <em>Manuscript received 15 July 1993, accepted 6 September 1993</em> Rapid Thin Layer Chromatographic Aromatic Amines using Surfactants Separation of some Aromatic Amines using Surfactants  

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12

D., K. SINGH, KUMAR R., and MISRA R. "Thin Layer Chromatography of Primary Aromatic Amines on Zirconium Molybdophosphate - Silica Gel G." Journal of Indian Chemical Society Vol. 75, Apr 1998 (1998): 269–70. https://doi.org/10.5281/zenodo.5924415.

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Department of Chemistry, Harcourt Butler Technological Institute, Kanpur-208 002 <em>Manuscript received 12 September 1996, revised 17 June 1997, accepted 1 August 1997</em> Thin layer chromatography of sixteen primary aromatic amine hydrochlorides has been investigated on the zirconium molybdophosphate- silica gel G with respect to the influences of zirconium molybdophospbate (ZMP) concentration in the layer and concentrations of sodium nitrate and hydrochloric acid in the eluent. Many interesting separations (qualitative and quantitative) of amine hydrochlorides from their synthetic mixtures

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13

Xu, Haiyan, Thomas M. Heinze, Siwei Chen, Carl E. Cerniglia, and Huizhong Chen. "Anaerobic Metabolism of 1-Amino-2-Naphthol-Based Azo Dyes (Sudan Dyes) by Human Intestinal Microflora." Applied and Environmental Microbiology 73, no. 23 (2007): 7759–62. http://dx.doi.org/10.1128/aem.01410-07.

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ABSTRACT The rates of metabolism of Sudan I and II and Para Red by human intestinal microflora were high compared to those of Sudan III and IV under anaerobic conditions. Metabolites of the dyes were identified as aniline, 2,4-dimethylaniline, o-toluidine, and 4-nitroaniline through high-performance liquid chromatography and liquid chromatography electrospray ionization tandem mass spectrometry analyses. These data indicate that human intestinal bacteria are able to reduce Sudan dyes to form potentially carcinogenic aromatic amines.

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14

Mathur, Ravi Prakash. "Determination of Biogenic Amines in Foods by Capillary Electrophoresis." Journal of Research in Science and Engineering 6, no. 11 (2024): 76–82. https://doi.org/10.53469/jrse.2024.06(11).16.

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This review article intends to provide comprehensive analysis on biogenic amines, their source, type and classification. Biogenic amines are nitrogen containing organic compound that naturally exits in nature. They have low molecular weight and are basic in nature. They are active components that act as precursors for synthesis of alkaloids, hormones, protein, nucleotides and aromatic compounds. They occur in plants, animal and microorganism and play an essential role in metabolic and physiological function. This paper focuses on determination of biogenic amines in food by capillary electropho

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15

Onuska, Francis I., Ken A. Terry, and R. James Maguire. "Analysis of Aromatic Amines in Industrial Wastewater by Capillary Gas Chromatography-Mass Spectrometry." Water Quality Research Journal 35, no. 2 (2000): 245–62. http://dx.doi.org/10.2166/wqrj.2000.016.

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Abstract The analysis of aromatic amines, particularly benzidines, at trace levels in environmental media has been difficult because of the lack of suitable deactivated capillary column stationary phases for gas chromatography. This report describes the use of an improved type of column as well as a method for the analysis of anilines and benzidines in water, wastewater and sewage samples. Extraction procedures are applicable to a wide range of compounds that are effectively partitioned from an aqueous matrix into methylene chloride, or onto a solid-phase extraction cartridge. The extracted an

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16

Bhushan, Brij, Arunima Nayak, and Kamaluddin. "Study of interaction and adsorption of aromatic amines by manganese oxides and their role in chemical evolution." International Journal of Astrobiology 16, no. 2 (2016): 143–55. http://dx.doi.org/10.1017/s1473550416000203.

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AbstractThe role of manganese oxides in concentrating organic moieties and offering catalytic activity for prebiotic reactions is investigated by studying their interaction with different aromatic amines such as aniline, p-chloroaniline, p-toluidine and p-anisidine. For all amines, metal oxides showed highest adsorption at neutral pH. The order of their adsorption capacity and affinity as revealed by the Langmuir constants was found to be manganosite (MnO) > bixbyite (Mn2O3) > hausmannite (Mn3O4) > and pyrolusite (MnO2). At alkaline pH, these manganese oxides offered their surfaces fo

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17

Yang, Fei, Zhaoyang Bian, Zhonghao Li, et al. "Determination of Aromatic Amines Released from Azo Dyes in Paper Packaging by Liquid Chromatography-Tandem Mass Spectrometry." Journal of AOAC INTERNATIONAL 99, no. 5 (2016): 1370–76. http://dx.doi.org/10.5740/jaoacint.16-0068.

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Abstract An LC-tandem MS (LC–MS/MS) method for the determination of 21 kinds of carcinogenic aromatic amines released from azo dyes in food wrappers was used in this research. Sodium dithionite was added to a citric acid buffer medium to reduce and decompose possible azo dyes. The extract was analyzed after liquid–liquid extraction (LLE) and dispersive SPE (d-SPE). The conditions for chromatographic separation, mass spectrum, LLE, and d-SPE were optimized. Under optimal conditions, the LOD was in the range of 0.13–0.35 mg/kg and LOQ in the range of 0.38–1.05 mg/kg, with the addition of standar

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18

Pehlivan, Erol, Ufuk S. Vural, Ahmet Ayar, and Salih Yildiz. "Ligand-Exchange Chromatography of Aromatic Amines on Resin-Bound Cobalt Ion." Separation Science and Technology 31, no. 11 (1996): 1643–48. http://dx.doi.org/10.1080/01496399608001418.

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19

Carpov, A., G. Mocanu, S. Chapelle, L. Merle, and G. Muller. "Chemically modified pullulans II. New hydrophobically substituted derivatives." Canadian Journal of Chemistry 73, no. 11 (1995): 1933–40. http://dx.doi.org/10.1139/v95-238.

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New hydrophobically substituted pullulans were synthesized, such as (i) neutral derivatives obtained by direct esterification of pullulan with adenine and thymine butyric acid and (ii) ionic derivatives obtained by amidation of carboxymethyl pullulan with aromatic amines (aminopyrene and adenine). Rheological measurements in dilute solutions allowed us to test the influence of the hydrophobic aromatic substituents and of the ionicity of the parent support on the nature of the hydrophobic associations in dilute solutions. The rheological studies on the pullulan derivatives revealed mainly intra

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20

Baha’uddeen Salisu, Abdulkadir Muhammad Magashi, Abdulrazak Mohammed Hussain, and Usman Adamu. "Determination of Phytochemicals and Antimicrobial Activity of Aqueous Stem Bark Extract of Boswellia dalzielii against Some Common Pathogenic Microorganisms." UMYU Journal of Microbiology Research (UJMR) 2, no. 1 (2017): 238–46. http://dx.doi.org/10.47430/ujmr.1721.035.

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Phytochemical screening by High Performance Liquid Chromatography (HPLC), Fourier Transformed Infrared Spectroscopy (FTIR) and Gas Chromatography- Mass Spectrometry (GCMS) of crude aqueous extract of stem bark of B. dalzielii was performed and its antimicrobial activity on Staphylococcus aureus, Streptococcus pyogenes, Enterococcus faecalis, Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Proteus mirabilis, Salmonella typhi and Candida albicans was evaluated. The result of HPLC analysis revealed 10 components with major ones at peaks 3, 2, 4, 5, 8 and 6 with peak areas of 33.4

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21

Wang, Wei Wei, Yang Wen, and Fei Zhao. "Determination of 10 Heterocyclic Aromatic Amines in Roast Meat by HPLC." Advanced Materials Research 807-809 (September 2013): 369–72. http://dx.doi.org/10.4028/www.scientific.net/amr.807-809.369.

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HAAs content was investigated in five meat products (including roasted chicken, mutton, beef, pork, fish) using solid-phase extraction-high performance liquid chromatography ( SPE-HPLC). The linear range was between 0.05 ~ 16.0μg ·mL-1, the detection limits (S/N=3) were in the range of 0.13 ~ 0.42ng·g-1, and the recoveries were in the range of 63.08 ~ 105.03%, while RSD was from 1.96 ~ 8.77%.

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22

KANG, Suyuan, Qing ZHANG, Hua BAI, Chao WANG, and Qing LU. "Determination of primary aromatic amines in crayons by gas chromatography-mass spectrometry." Chinese Journal of Chromatography 29, no. 5 (2011): 422–25. http://dx.doi.org/10.3724/sp.j.1123.2011.00422.

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23

Olsson, Joanna C., Anders Dyremark, and Bo Karlberg. "Determination of heterocyclic aromatic amines by micellar electrokinetic chromatography with amperometric detection." Journal of Chromatography A 765, no. 2 (1997): 329–35. http://dx.doi.org/10.1016/s0021-9673(96)00918-1.

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24

Perez, Mary Ângela Favaro, Marisa Padula, Daisy Moitinho, and Carla Beatriz Grespan Bottoli. "Primary aromatic amines in kitchenware: Determination by liquid chromatography-tandem mass spectrometry." Journal of Chromatography A 1602 (September 2019): 217–27. http://dx.doi.org/10.1016/j.chroma.2019.05.019.

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25

M. Karamat, M. Asim, J. Hafeez, et al. "STRUCTURAL CHARACTERIZATION, ANTIOXIDANT, ANTIDIABETIC AND ANTIMICROBIAL ACTIVITIES OF TRACHYSPERMUM AMMI AND FOENICULUM VULGARE." Pakistan Journal of Science 76, no. 02 (2024): 314–23. https://doi.org/10.57041/vol76iss02pp314-323.

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The purpose of this study was to analyze the chemical composition, anti-diabetic, antioxidant and antibacterial properties of seeds of Trachyspermum ammi and Foeniculum vulgare. The flavonoid and phenolic contents among both plants were significantly varied (P < 0.05). The methanolic extract of T.ammi and F.vulgare showed the highest scavenging ability of DPPH (60.0798% and 77.84431%) respectively. It was discovered that the growth of Gram-positive bacterial strains was significantly inhibited by T. ammi and F. vulgare with an estimated inhibition zone of 11 mm and 13 mm respectively, again

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26

Pace, Christopher M., Joseph R. Donnelly, Jeffrey L. Jeter, William C. Brumley, and G. Wayne Sovocool. "Determination of Aromatic Amines in Soils." Journal of AOAC INTERNATIONAL 79, no. 3 (1996): 777–83. http://dx.doi.org/10.1093/jaoac/79.3.777.

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Abstract A rapid liquid chromatographic (LC) method with ultraviolet (UV) or fluorescence detection was developed for parts-per-billion levels of aromatic amines in soils. 2,4-Diaminotoluene, pyridine, aniline, 2-pi-coline, 2-toluidine, 5-nitro-2-toluidine, 2-methyl-6-ethylaniline, 4-aminobiphenyl, 4-nitroaniline, 1-naphthyl-amine, 2-methoxyaniline, and 2-naphthyiamine were tested. The method involves extraction by sonication with 1% ammonium hydroxide–acetonitrile and analysis by LC using gradient elution with aqueous 0.01 M ammonium acetate–0.0005% triethylamine and acetonitrile. Recoveries

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27

Mourya, Sandeep-Kumar, Devasish Bose, Abhilasha Durgbanshi, Josep Esteve-Romero, and Samuel Carda-Broch. "Determination of some banned aromatic amines in waste water using micellar liquid chromatography." Analytical Methods 3, no. 9 (2011): 2032. http://dx.doi.org/10.1039/c0ay00602e.

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28

Guo, Kunpeng, and Yi Chen. "Simple and rapid detection of aromatic amines using a thin layer chromatography plate." Analytical Methods 2, no. 8 (2010): 1156. http://dx.doi.org/10.1039/c0ay00316f.

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29

Felice, L. J., R. E. Schirmer, D. L. Springer, and C. V. Veverka. "Determination of polycyclic aromatic amines in skin by liquid chromatography with electrochemical detection." Journal of Chromatography A 354 (January 1986): 442–48. http://dx.doi.org/10.1016/s0021-9673(01)87046-1.

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30

Van Dyck, M. M. C., B. Rollmann, and C. De Meester. "Quantitative estimation of heterocyclic aromatic amines by ion-exchange chromatography and electrochemical detection." Journal of Chromatography A 697, no. 1-2 (1995): 377–82. http://dx.doi.org/10.1016/0021-9673(94)00837-y.

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31

Evgen’ev, M. I., I. I. Evgen’eva, F. S. Levinson, E. A. Ermolaeva, and Ya R. Valitova. "High-performance liquid chromatography of 5,7-dinitrobenzofurazan and nitrobenzodifurazan derivatives of aromatic amines." Journal of Analytical Chemistry 61, no. 2 (2006): 133–38. http://dx.doi.org/10.1134/s1061934806020080.

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32

Moldovan, Zaharie, and Jose Maria Bayona. "Determination of novel aromatic amines in environmental samples by gas chromatography/mass spectrometry." Rapid Communications in Mass Spectrometry 14, no. 6 (2000): 379–89. http://dx.doi.org/10.1002/(sici)1097-0231(20000331)14:6<379::aid-rcm881>3.0.co;2-m.

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33

Van Dessel, G., and A. Lagrou. "Intracellular trafficking of dolichol: on the presence of dolichol transfer activity in bovine liver supernatant." Acta Biochimica Polonica 41, no. 3 (1994): 311–20. http://dx.doi.org/10.18388/abp.1994_4720.

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A protein catalyzing dolichol transfer between membranes has been purified from bovine liver up to 600-fold by acid precipitation, ammonium sulfate precipitation, ion-exchange chromatography and hydrophobic interaction chromatography. The protein displays a relative molecular mass of 15000 on SDS-gel electrophoresis. Kinetics as well as the influence of a series of effectors were studied. The transfer activity is inhibited by sphingomyelin, sulfhydryl groups and cationic amphiphilic amines with a bulky heterocyclic aromatic function. High salt concentration decreases the transfer efficiency. T

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34

Ahmad, Sohail, Naser M. AbdEl-Salam, and Riaz Ullah. "In VitroAntimicrobial Bioassays, DPPH Radical Scavenging Activity, and FTIR Spectroscopy Analysis ofHeliotropium bacciferum." BioMed Research International 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/3818945.

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The present study deals with the antimicrobial, antioxidant, and functional group analysis ofHeliotropium bacciferumextracts. Disc diffusion susceptibility method was followed for antimicrobial assessment. Noteworthy antimicrobial activities were recorded by various plant extracts against antibiotic resistant microorganisms. Plant flower extracts antioxidant activity was investigated against 2, 2-diphenyl-1-picryl hydrazyl radical by ultraviolet spectrophotometer (517 nm). Plant extracts displayed noteworthy radical scavenging activities at all concentrations (25–225 μg/mL). Notable activities

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35

Nguyen Huy, Duong, Hien Nguyen Le Thuy, Thai Pham Hong, et al. "An overview on analytical methods and the occurrence of organic pollutants in cigarette litter." Heavy metals and arsenic concentrations in water, agricultural soil, and rice in Ngan Son district, Bac Kan province, Vietnam 7, no. 3 (2024): 251–63. http://dx.doi.org/10.47866/2615-9252/vjfc.4354.

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Cigarette litter, such as cigarette ash, cigarette butts, and cigarette butt leachates, can contain organic pollutants similar to those in cigarette smoke, but studies on these waste types are still relatively limited. This review article compiles information from studies published over the past four decades on organic pollutants in cigarette ash, cigarette butts, and leachates from cigarette butts, to provide insights into quantitatively analytical methods and the presence of these toxicants in cigarette litter. The main organic pollutants found in cigarette litter include: volatile organic c

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36

Alinaghi Langari, Ali Akbar, Ali Firoozichahak, Saber Alizadeh, Davood Nematollahi, and Maryam Farhadian. "Efficient extraction of aromatic amines in the air by the needle trap device packed with the zirconium based metal–organic framework sorbent." RSC Advances 10, no. 23 (2020): 13562–72. http://dx.doi.org/10.1039/d0ra00687d.

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Development of a needle trap device (NTD) packed with UiO-66 adsorbent was used for the sampling of the aromatic amine compounds (including aniline, N,N-dimethylaniline and o-toluidine) followed by gas chromatography (GC) with flame-ionization detector (FID) analysis.

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37

ELENA, PERDUM, MEDVEDOVICI ANDREI VALENTIN, TACHE FLORENTIN, et al. "Some validation aspects on the analytical method for assaying carcinogenic amines from textile dyes." Industria Textila 69, no. 03 (2018): 249–56. http://dx.doi.org/10.35530/it.069.03.1521.

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Chemicals safety control and ecological properties have become a priority for the textile industry in order to avoid the negative effects on humans and environment. The increasing interest for toxicology of textiles is determined by the presence of dangerous compounds in clothes generated from dyeing and finishing processes. In order to protect human health, European Regulations as Oeko Tex Standard 100 and REACH Regulation limit the presence of dangerous chemicals, such as aromatic amines, generated by reductive cleavage of azo dyes, by no more than 30 mg/kg of textile material. The main goal

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38

Ramos, C. X., S. L. Estévez, and E. Giraldo. "Volatile organic compound emissions during the composting of biosolids from a domestic wastewater treatment plant." Water Science and Technology 46, no. 10 (2002): 195–98. http://dx.doi.org/10.2166/wst.2002.0329.

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VOCs emitted by two composting static piles of biosolids coming from the “El Salitre” wastewater treatment plant (Bogotá, Colombia) were analysed during the composting process. Each pile in its sampling time was maintained with a different aeration system. The sampling was made using Solid Phase Microextraction (SPME); separation and identifications were made using Gas Chromatography (GC) coupled to Mass Spectrometry (MS). Aliphatic and aromatic hydrocarbons, chlorinated compounds, ketones, mercaptans, alcohols and amines were identified in concentrations greater than the norms stipulated by t

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39

WAN, Kehui, Zengqi PENG, Bin SHAO, Yao YAO, and Jinming SHI. "Determination of 10 heterocyclic aromatic amines in beef jerky by high performance liquid chromatography." Chinese Journal of Chromatography 30, no. 3 (2013): 285–91. http://dx.doi.org/10.3724/sp.j.1123.2011.11039.

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40

ZHU, Yin, Yan ZHU, and Lili WANG. "Determination of trace aromatic amines in waste water using microextraction combined with ion chromatography." Chinese Journal of Chromatography 30, no. 4 (2013): 345–49. http://dx.doi.org/10.3724/sp.j.1123.2011.12075.

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41

Amelin, V. G., and I. S. Kolodkin. "Frontal Chemosorption Planar Chromatography in the Test-Methods of Phenols and Aromatic Amines Determination." Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology 12, no. 2 (2012): 10–15. http://dx.doi.org/10.18500/1816-9775-2012-12-2-10-15.

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42

Rehorek, Astrid, and Alexander Plum. "Characterization of sulfonated azo dyes and aromatic amines by pyrolysis gas chromatography/mass spectrometry." Analytical and Bioanalytical Chemistry 388, no. 8 (2007): 1653–62. http://dx.doi.org/10.1007/s00216-007-1390-0.

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43

Khatun, Shahanaz, Md Ashraduzzaman, Md Rezaul Karim, Farzana Pervin, Nurul Absar, and Ahmad Rosma. "Purification and characterization of peroxidase from Moringa oleifera L. leaves." BioResources 7, no. 3 (2012): 3237–51. http://dx.doi.org/10.15376/biores.7.3.3237-3251.

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Peroxidase catalyzes the oxidation of various electron donor substrates such as phenol and aromatic amines in the presence of hydrogen peroxide. In this study, peroxidase was purified 164-fold from the leaves of Moringa oleifera L. with a recovery of 28% by ammonium sulphate precipitation, DEAE-cellulose column chromatography, Sephadex G-200 column chromatography, and Con-A column chromatography. SDS-PAGE showed a polypeptide band with molecular weight of 43 kDa. The enzyme was found to be a single subunit in nature. The purified enzyme displayed optimum activity at pH 6.0 and at a temperature

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Harahap, Chiko, Tuti Wukirsari, Sri Handayani, and Sumi Hudiyono PWS. "Comparison of the Lipoamide Synthesis by Direct Amidation and via Amidation of Fatty Acid Methyl Esters." Jurnal Kimia Sains dan Aplikasi 27, no. 7 (2024): 328–35. http://dx.doi.org/10.14710/jksa.27.7.328-335.

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In this research, the preparation of lipoamide through direct amidation of fatty acid and via amidation of fatty acid methyl ester (FAME) was compared. The reactivity of aromatic amines and cyclohexylamine for the synthesis of lipoamide was investigated in this research. The performance of saturated and unsaturated fatty acids was also compared. The synthesis of lipoamides via direct amidation was conducted under reflux using a Dean-Stark trap and silica gel as the catalyst. On the other hand, the amidation of FAME was carried out without catalysts and solvent. Both reactions were run simultan

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Michail, Karim, Naif Aljuhani, and Arno G. Siraki. "The interaction of diamines and polyamines with the peroxidase-catalyzed metabolism of aromatic amines: a potential mechanism for the modulation of aniline toxicity." Canadian Journal of Physiology and Pharmacology 91, no. 3 (2013): 228–35. http://dx.doi.org/10.1139/cjpp-2012-0253.

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Synthetic and biological amines such as ethylenediamine (EDA), spermine, and spermidine have not been previously investigated in free-radical biochemical systems involving aniline-based drugs or xenobiotics. We aimed to study the influence of polyamines in the modulation of aromatic amine radical metabolites in peroxidase-mediated free radical reactions. The aniline compounds tested caused a relatively low oxidation rate of glutathione in the presence of horseradish peroxidase (HRP), and H2O2; however, they demonstrated marked oxygen consumption when a polyamine molecule was present. Next, we

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Faridnia, F., A. Hussin, N. Saari, S. Mustafa, L. Yee, and M. Manap. "In vitro binding of mutagenic heterocyclic aromatic amines by Bifidobacterium pseudocatenulatum G4." Beneficial Microbes 1, no. 2 (2010): 149–54. http://dx.doi.org/10.3920/bm2009.0035.

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Consumption of probiotics has been associated with decreased risk of colon cancer and reported to have antimutagenic/ anti-carcinogenic properties. One possible mechanism for this effect involves physical binding of the mutagenic compounds, such as heterocyclic amines (HCAs), to the bacteria. Therefore, the objective of this study was to examine the binding capacity of bifidobacterial strains of human origin on mutagenic heterocyclic amines which are suspected to play a role in human cancers. In vitro binding of the mutagens Trp-p-2, IQ, MeIQx, 7,8DiMeIQx and PhIP by three bacterial strains in

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Yuan, Hua Wei, Hong Ling Yin, Yun Huang, et al. "Study on the Pollution Characteristic of VOCs in Ambient Air of Chengdu." Advanced Materials Research 610-613 (December 2012): 1889–94. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.1889.

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In this study, the environmental behavior of major VOCs in ambient air were investigated in urban and suburban areas in Chengdu city in the spring of 2012. VOCs samples were collected by sorbent tubes with TENAX TA, and were analyzed by thermal desorption followed by gas chromatography mass spectrometry. The most abundant VOCs were aromatic hydrocarbons (58.09%), next in order were alkanes(15.28%), esters(11.27%), aldehydes and ketones(7.64%), acids and heterocyclic compounds(3.39%), olefins(2.96%), alcohols(0.84%), amines(0.35%), ethers(0.17%). Alkanes, alkenes, aromatic hydrocarbons, esters

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Weng, Ting, Ning Ping Tao, Xi Chang Wang, and Yin Zhe Jin. "Supercritical Carbon Dioxide Extraction of Volatile Compounds from Antarctic Krill (Euphausia superba)." Advanced Materials Research 396-398 (November 2011): 2074–80. http://dx.doi.org/10.4028/www.scientific.net/amr.396-398.2074.

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Supercritical carbon dioxide (SC-CO2) extraction and simultaneous distillation extraction (SDE) were used to determine the volatile composition of Antarctic krill (Euphausia superba). The optimal extraction conditions for the oils yield within the experimental range of variables examined were temperature 40 °C, pressure 60 MPa, and extraction time 150 min. The maximum measured extraction yield was 12.34 ± 0.20 %. The chemical composition of the volatile compounds was adsorpted and analyzed by headspace solid phase microextraction (HS-SPME) and gas chromatography/mass spectrometry (GC/MS), resp

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Grimmer, G., D. Schneider, KW Naujack, G. Dettbarn, and J. Jacob. "Intercept-Reactant Method for the Determination of Aromatic Amines in Mainstream Tobacco Smoke." Beiträge zur Tabakforschung International/Contributions to Tobacco Research 16, no. 4 (1995): 141–56. http://dx.doi.org/10.2478/cttr-2013-0643.

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AbstractA method for the determination of aromatic amines in mainstream smoke of mechanically smoked cigarettes has been developed. The fast reaction of aromatic amines with other smoke constituents formed during the combustion process can be significantly reduced by the addition of an excess of p-toluidine to the acidic collecting solution. From this point the p-toluidine as intercept reactant immediately stabilizes the originally formed amines and results in high recovery rates. The method allows the gas chromatographic determination of aniline, o- and m-toluidine, 1- and 2-aminonaphthalene,

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Maris, Christophe, Alain Laplanche, Jean Morvan, and Marianne Bloquel. "Development of a Packed Precolumn for Capillary Gas Chromatographic Analysis of Amines in Acidic Aqueous Solution." Water Science and Technology 40, no. 6 (1999): 141–48. http://dx.doi.org/10.2166/wst.1999.0283.

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This paper describes an optimization of the analysis of amines in aqueous solution. Direct injection of the acidic sample (HCl 0.12 N) is performed by the coupling of packed precolumn with a capillary column. The basic support efficiently traps residual vapors of hydrochloric acid and water at the injection time; the capillary chromatographic performance is maintained. The precolumn coupling with PoraPLOT Amines capillary column enables a separation and quantification of the lower volatile aliphatic amines (methylamine, dimethylamine, trimethylamine and ethylamine). The ammonia addition to the

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