Multi-residue determination of polyhalogenated carbazoles in aquatic sediments

Journal of Chromatography. a
Yan WuDa Chen

Abstract

Recent studies have discovered a number of polyhalogenated carbazoles (PHCZs) in aquatic sediments and soil. These substances are attracting emerging concern due to their environmental presence, persistence, and potential dioxin-like activities. In response to the increasing interests in these chemicals, the present study aimed to develop an efficient and sensitive analytical methodology for quantitative determination of environmentally relevant PHCZs in aquatic sediments. The developed method employed time- and solvent-saving extraction and cleanup procedures and utilized gas chromatogram-mass spectrometry (GC-MS) for separation and determination of PHCZ analytes. PHCZs substituted with bromine atom(s) (except for 3-bromocarbazole) or a combination of bromine and chlorine atoms were analyzed by GC-MS in the electron-capture negative ionization (ECNI) mode, whereas congeners substituted with chlorine atoms as well as 3-bromocarbazole were analyzed in electron impact (EI) ionization mode. The developed method demonstrated negligible matrix effects, satisfactory and stable recoveries, and low method limits of quantification (0.11-0.53ng/g dry weight (dw)) of target analytes. Using this method, we successfully determined a number ...Continue Reading

References

Nov 30, 1998·Environmental Health Perspectives·M Van den BergT Zacharewski
Mar 14, 2002·Mutation Research·Anand M Jha, Mithilesh K Bharti
Aug 25, 2004·Water Research·Alexander KronimusRalf Littke
Feb 16, 2006·Environmental Science & Technology·Lingyan Zhu, Ronald A Hites
May 2, 2009·Journal of Chromatography. a·Antonia Garrido FrenichR Romero-González
Oct 5, 2010·Environmental Science and Pollution Research International·Lisa TröbsKarl-Werner Schramm
Aug 22, 2014·Environmental Science and Pollution Research International·John MumboKarl-Werner Schramm
Sep 25, 2014·Environmental Science and Pollution Research International·John MumboKarl-Werner Schramm
Oct 2, 2014·Environmental Science & Technology·Jiehong GuoAn Li
Aug 1, 2015·Environmental Science & Technology·Nicole RiddellRobert McCrindle

❮ Previous
Next ❯

Citations

May 23, 2019·Bulletin of Environmental Contamination and Toxicology·Yong QiuYan Wang
Oct 30, 2020·Environmental Pollution·Chenyang JiMeirong Zhao
Jan 21, 2019·Marine Pollution Bulletin·Xiaojun ZhangYing Qiu
Sep 14, 2019·Ecotoxicology and Environmental Safety·Li FangJianwen She
Aug 29, 2020·The Science of the Total Environment·Guowei WangJiakuan Yang
Jul 29, 2019·Ecotoxicology and Environmental Safety·Yanxiao ZhouGe Yin

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.