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Bartolomeo Sebastiani and Stefano Falcinelli
Analytical data concerning the contamination on three officinal plants due to Persistent Organic Pollutants (POPs), as organochlorine pesticides, are reported and discussed. Analyzed vegetation??Graviola? (Annona muricata), ?Mullaca? (Physalis ...
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Attila G. Kovács, Attila Szöllosi, Dániel Szöllosi, Ilona A. Panyik, László Nagygyörgy, Ágoston Hoschke, Quang D. Nguyen
Pág. 175 - 181
The quality of fruit based spirits varies year to year; therefore, the identification of the vintage of a distilled alcoholic beverage is necessary, but requires highly sensitive analytics. The interpretation of the gathered data requires a well-adapted ...
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Fabiano Rosa Silva, Alberto Wisniewski Junior, Valdir Cechinel Filho, Domingos Sávio Nunes
Pág. 325 - 329
The essential oil from the bark of Croton cajucara Bentham, popularly known as sacaca or cajuçara, was obtained by hydrodistillation, yielding 1.28% of the former bark mass, and analyzed by gas chromatography (GC) and gas chromatography coupled to mass s...
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Aleksandra Bojke, Malgorzata Littwin, Agata Szpiech, Ewelina Duljas, Pawel Jasinski, Izabela Wittstock, Olga Jazdzewska and Katarzyna Galer-Tatarowicz
This paper presents a procedure for the determination of bisphenol A (BPA) in seawater. Gas chromatography coupled with mass spectrometry (GC-MS) was used as the analytical method, preceded by analyte isolation via solid-phase extraction (SPE). Initially...
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Santino Orecchio, Michele Fiore, Salvatore Barreca and Gabriele Vara
The objective of present study was to identify volatile organic compounds (VOCs) emitted from several sources (fuels, traffic, landfills, coffee roasting, a street-food laboratory, building work, indoor use of incense and candles, a dental laboratory, et...
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Bálint Tomasskovics, Viola Horváth, József Balla, Ferenc Örsi, András Szarka
Pág. 1 - 6
Preparation of intact mitochondria requires the use of an osmoticum in high concentration that preserves the mitochondrial structure and prevents physical swelling and rupture of membranes. For this purpose mannitol is widely accepted as a component of t...
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Shadrack Mule, Charles Nguta, Geoffrey Kamau, Gilbert Ongera, Phanice Wangila, Joyce Kiplimo, Dennis Chirchir
Pág. 38 - 52
The determination of retention efficiencies of halogenated and non-halogenated hydrocarbon in selected wetland ecosystems in Lake Victoria basin was carried out. Qualitative and quantitative determination of the presence of residual hydrocarbons in Kigwa...
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Shadrack Mule, Charles Nguta, Geoffrey Kamau, Gilbert Ongera, Phanice Wangila, Joyce Kiplimo, Dennis Chirchir
Pág. 38 - 52
The determination of retention efficiencies of halogenated and non-halogenated hydrocarbon in selected wetland ecosystems in Lake Victoria basin was carried out. Qualitative and quantitative determination of the presence of residual hydrocarbons in Kigwa...
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Sodik Numonov, Farukh S. Sharopov, Sunbula Atolikhshoeva, Abduahad Safomuddin, Mahinur Bakri, William N. Setzer, Azizullo Musoev, Mizhgona Sharofova, Maidina Habasi and Haji Akber Aisa
(1) Background: Almost 500 million people worldwide are suffering from diabetes. Since ancient times, humans have used medicinal plants for the treatment of diabetes. Medicinal plants continue to serve as natural sources for the discovery of antidiabetic...
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Suhyun Ahn, Jeong Mog Seo and Heejin Lee
Marine lubricating oil (LO) is deteriorated by contaminants?especially marine gas oil (MGO), which is invariably mixed during its usage?that can damage engine performance. This study investigates a method for determining the content of MGO in lubricating...
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Bartosz Piechowicz, Aleksandra Kwiatek, Stanislaw Sadlo, Lech Zareba, Anna Koziorowska, Daniela Kloc and Maciej Balawejder
Paenibacillus larvae is a deadly pathogen for bee brood, which can lead to the death of entire colonies. The presence of specific volatile organic compounds (VOCs) in the hive may be related to the occurrence of this bacterium in brood. Compositions of t...
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Kai-Min Yang, Chih-Wei Chen, Min-Hung Chen, Hsin-Chun Chen and Li-Yun Lin
Citrus essential oil combines numerous components with many qualities and control issues. For example, how to monitor volatile components and nonvolatile substances simultaneously is a major problem. Therefore, the objective of this study was to develop ...
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Maxat Toishimanov, Meruyet Nurgaliyeva, Assiya Serikbayeva, Zhulduz Suleimenova, Karima Myrzabek, Aksholpan Shokan and Nurgul Myrzabayeva
Here, we present the results of analyzing the fatty acid composition of the main edible vegetable oils from Kazakhstani oilseed producers (safflower, sunflower, maize (corn), linseed, cottonseed, soybean and rapeseed) in comparison with the known fatty a...
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Howri Mansurbeg, Ibrahim Mohialdeen, Ali Al-Juboury, Namam Salih, Mohammad Alsuwaidi, Salahadin Shahrokhi, Ihsan Al-Aasm, Rebar Mahmmud and Albert Permanyer
Field observations, together with the results of gas chromatography?mass spectrometry (GC-MS) and stable carbon isotope analysis of bitumen, coupled with fluid inclusion microthermometry and stable isotope analyses of closely associated vug- and fracture...
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Jie Yang, Zhibo Zhou, Tianji Lu and Ling Shen
The present work reports the identification of inorganic and organic materials applied in gildings of Kizil Grottoes mural paintings, located in the western part of China. A total of 10 gold gilding samples were collected from caves dated in the fourth?s...
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Wen-Hsi Cheng and Chung-Shin Yuan
A micro needle trap sampler (NTS) was carried by a mini quadrotor drone (Mavic Pro, DJI) to collect volatile organic compounds (VOCs) from industries. The NTS was fabricated using a 7 cm long, 22-gauge stainless steel needle by packing powdered divinylbe...
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Tatjana Paulauskiene, Jochen Uebe, Zilvinas Kryzevicius, Valeriia Kaskova, Marija Katarzyte and Donata Overlinge
Crude oil and petroleum products made from it are increasingly being extracted and consumed worldwide as an important energy source. During necessary transportation, e.g., by tanker, an oil spill might occur, which leads to water pollution by oil. One of...
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CHUKWUOGENE UCHE CHUKWU, EKPETE OZIOMA ADAUNWO, EDORI ONISOGEN SIMEON
Pág. Page:29 - 35Abstract
This study evaluated the concentration and sources of poly aromatic hydrocarbons (PAHs) by means of Gas Chromatography/Flame Ionization detector (GC/FID) in asphalt contaminated soils from three Asphalt Companies namely AUC, H & H and JAFAC, within P...
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CHUKWUOGENE UCHE CHUKWU, EKPETE OZIOMA ADAUNWO, EDORI ONISOGEN SIMEON
Pág. Page:29 - 35Abstract
This study evaluated the concentration and sources of poly aromatic hydrocarbons (PAHs) by means of Gas Chromatography/Flame Ionization detector (GC/FID) in asphalt contaminated soils from three Asphalt Companies namely AUC, H & H and JAFAC, within P...
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O. S. EDORI, E. S. EDORI
Pág. Page:12 - 21Abstract
Samples were collected from the water and sediment columns of the Orashi River from December 2019 to June 2020 at intervals of two months and then analyzed for the concentration of total petroleum hydrocarbons and the origin of the petroleum hydrocarbons...
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