Characterization of Halogenated Organic Compounds in Pelagic Sharks and Sea Turtles Using a Nontargeted Approach

2021 ◽  
Author(s):  
Aikebaier Renaguli ◽  
Sujan Fernando ◽  
Thomas M. Holsen ◽  
Philip K. Hopke ◽  
Douglas H. Adams ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Sea Turtles ◽  
Halogenated Organic Compounds

Characterization of Soluble Organic Compounds and Complexation of Copper, Nickel, and Zinc in Extracts of Sludge-amended Soils

1987 ◽  
Vol 16 (4) ◽  
pp. 341-348 ◽  
Author(s):  
L. M. Dudley ◽  
B. L. McNeal ◽  
J. E. Baham ◽  
C. S. Coray ◽  
H. H. Cheng
Keyword(s):  
Organic Compounds ◽  
Amended Soils ◽  
Copper Nickel

Structural and Bioactive Studies of Halogenated Constituents from Sponges

2020 ◽  
Vol 27 (14) ◽  
pp. 2335-2360 ◽  
Author(s):  
Chao Li ◽  
Dayong Shi
Keyword(s):  
Microbial Communities ◽  
Organic Compounds ◽  
Biological Activities ◽  
Marine Sponges ◽  
Nitrogen Compounds ◽  
Halogenated Organic Compounds ◽  
Bioactive Natural Products ◽  
The Past ◽  
Tyrosine Derivatives ◽  
Polyunsaturated Lipids

: Marine organisms are abundant sources of bioactive natural products. Among metabolites produced by sponges and their associated microbial communities, halogenated natural compounds accounted for an important part due to their potent biological activities. The present review updates and compiles a total of 258 halogenated organic compounds isolated in the past three decades, especially brominated derivatives derived from 31 genera of marine sponges. These compounds can be classified as the following classes: brominated polyunsaturated lipids, nitrogen compounds, brominated tyrosine derivatives and other halogenated compounds. These substances were listed together with their source organisms, structures and bioactivities. For this purpose, 84 references were consulted.

scholarly journals Halogenated Volatile Organic Compounds in Water Samples and Inorganic Elements Levels in Ores for Characterizing a High Anthropogenic Polluted Area in the Northern Latium Region (Italy)

2021 ◽  
Vol 18 (4) ◽  
pp. 1628
Author(s):  
Mario Vincenzo Russo ◽  
Ivan Notardonato ◽  
Alberto Rosada ◽  
Giuseppe Ianiri ◽  
Pasquale Avino
Keyword(s):  
Organic Compounds ◽  
Mean Value ◽  
Greenhouse Crops ◽  
River Waters ◽  
Liquid Liquid Extraction ◽  
Volatile Organic ◽  
High Concentrations ◽  
Very High ◽  
Inorganic Fraction

This paper shows a characterization of the organic and inorganic fraction of river waters (Tiber and Marta) and ores/soil samples collected in the Northern Latium region of Italy for evaluating the anthropogenic/natural source contribution to the environmental pollution of this area. For organic compounds, organochloride volatile compounds in Tiber and Marta rivers were analyzed by two different clean-up methods (i.e., liquid–liquid extraction and static headspace) followed by gas chromatography–electron capture detector (GC-ECD) analysis. The results show very high concentrations of bromoform (up to 1.82 and 3.2 µg L−1 in Tiber and Marta rivers, respectively), due to the presence of greenhouse crops, and of chloroform and tetrachloroethene, due to the presence of handicrafts installations. For the qualitative and quantitative assessment of the inorganic fraction, it is highlighted the use of a nuclear analytical method, instrumental neutron activation analysis, which allows having more information as possible from the sample without performing any chemical-physical pretreatment. The results have evidenced high levels of mercury (mean value 88.6 µg g−1), antimony (77.7 µg g−1), strontium (12,039 µg g−1) and zinc (103 µg g−1), whereas rare earth elements show levels similar to the literature data. Particular consideration is drawn for arsenic (414 µg g−1): the levels found in this paper (ranging between 1 and 5100 µg g−1) explain the high content of such element (as arsenates) in the aquifer, a big issue in this area.

Characterization of biogenic volatile organic compounds (BVOCs) in cleaning reagents and air fresheners in Hong Kong

2011 ◽  
Vol 45 (34) ◽  
pp. 6191-6196 ◽  
Author(s):  
Yu Huang ◽  
Steven Sai Hang Ho ◽  
Kin Fai Ho ◽  
Shun Cheng Lee ◽  
Yuan Gao ◽  
...  
Keyword(s):  
Hong Kong ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Biogenic Volatile Organic Compounds ◽  
Volatile Organic

Solid state chemical ionization for characterization of organic compounds by laser mass spectrometry

Talanta ◽  
1989 ◽  
Vol 36 (1-2) ◽  
pp. 117-124 ◽  
Author(s):  
Kesagapillai Balasanmugam ◽  
Somayajula Kasi Viswanadham ◽  
David M. Hercules
Keyword(s):  
Mass Spectrometry ◽  
Solid State ◽  
Organic Compounds ◽  
Chemical Ionization ◽  
Laser Mass Spectrometry ◽  
State Chemical

Chemical Characterization of Dissolved Organic Compounds from Coastal Sea Surface Microlayers (Baltic Sea, Germany)

2012 ◽  
Vol 46 (19) ◽  
pp. 10455-10462 ◽  
Author(s):  
Manuela van Pinxteren ◽  
Conny Müller ◽  
Yoshiteru Iinuma ◽  
Christian Stolle ◽  
Hartmut Herrmann
Keyword(s):  
Baltic Sea ◽  
Organic Compounds ◽  
Chemical Characterization ◽  
Sea Surface ◽  
Coastal Sea ◽  
Dissolved Organic Compounds
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