Results 61 to 70 of about 76,914 (265)

HPLC Determination of Atrazine in Water Using Dispersive Liquid-Liquid Microextraction Based on Ultrasonic-assisted in situ Ionic Liquid Formation

Yankuang ceshi, 2015
A kind of green solvent, ionic liquid, was introduced as an extracting agent, and a new method of dispersive liquid-liquid microextraction based on ultrasonic-assisted in situ ionic liquid formation (DLLM-UAISLF) was established for the High Performance ...
PAN Min-jun, CAO Xi, JING Ming, LI Jin-yang, CHEN Jia-wei   +4 more
doaj   +1 more source

Liquid-Liquid Microextraction of Vanadyl Porphyrins by Nano-baskets [PDF]

, 2012
The novelties of this approach are introducing the self-settled dispersive liquid-liquid microextraction technique to remove the centrifuging step, conducting the dispersive liquid phase microextraction in complex organic systems, applicability of ...
Mokhtari, B., Pourabdollah, K.
core  

Speciation analysis of mercury in water samples by dispersive liquid-liquid microextraction coupled to capillary electrophoresis [PDF]

, 2014
In this study, a method of pretreatment and speciation analysis of mercury by dispersive liquid-liquid microextraction along with CE was developed. The method was based on the fact that mercury species including methylmercury (MeHg), ethylmercury (EtHg),
Andruch, Chen, Chen, Chen, dos Santos, Duarte, Duarte, Fan, Gao, Geng, Ito, Jackson, Jia, Kubáň, Leopold, Li, Li, Li, Li, Li, Louise, Ma, Margetínová, Martin, Mishra, Pena-Pereira, Percy, Rivaro, Ructnev, Sarıca, Song, Sánchez, Wei, Wen, Wen, Xu, Yan, Yin, Zhou   +38 more
core   +1 more source

Monitoring and Mitigation Strategies for Hazardous Compounds in Chinese Rice Wine (Huangjiu): A Comprehensive Review

Food Safety and Health, EarlyView.
This review elucidates the formation pathways and detection technologies for ethyl carbamate, biogenic amines, and higher alcohols in Huangjiu. It concludes that integrated control frameworks are essential to decouple safety risks from the metabolic processes responsible for flavor development.
Lulu Liu, Zhiqiang Kong, Lin Li, Yifan Zhang, Bei Fan, Minmin Li   +5 more
wiley   +1 more source

Dispersive liquid-liquid microextraction for the simultaneous separation of trace amounts of zinc and cadmium ions in water samples prior to flame atomic absorption spectrometry determination

Química Nova, 2012
In the proposed method, carbon tetrachloride and ethanol were used as extraction and dispersive solvents. Several factors that may be affected on the extraction process, such as extraction solvent, disperser solvent, the volume of extraction and ...
Sayed Zia Mohammadi, Yar Mohammad Baghelani, Fatemeh Mansori, Tayebeh Shamspur, Daryoush Afzali   +4 more
doaj   +1 more source

Photocatalytic degradation and mineralization of diazinon in aqueous solution using nano-TiO2(Degussa, P25): kinetic and statistical analysis [PDF]

, 2015
: In this study, photocatalytic degradation of diazinon was investigated using nano-TiO2, Degussa P25, as a photocatalyst and the effects of some operational parameters such as aeration, pH, photocatalyst concentration, and the irradiation time were also
Asgharnia, H., Dadban Shahamat, Y., Esrafili, A., Farzadkia, M., Kalantary, R.R.   +4 more
core  

Analytical Approaches to Address Challenges in the Analysis of Cannabinoids in Vascular Matrices Using Mass Spectrometry

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Phytocannabinoids are bioactive metabolites derived from the Cannabis sativa plant. They have garnered attention due to their recreational uses and therapeutic potential. Although various analytical strategies have been employed for their analysis, mass spectrometry (MS) coupled to chromatographic separation is superior due to its sensitivity ...
Radwa Mahmoud, Robert B. Laprairie, Anas El‐Aneed   +2 more
wiley   +1 more source

Valproic acid extraction methods in human samples for gas chromatography analysis: a review

Drug Analytical Research
Valproic acid (VPA) is widely used as an important drug for the treatment of epilepsy, seizures, bipolar disorders, and migraines. However, its narrow therapeutic range lead to risks of unintentional poisoning and potential suicide.
Juliana Blume de Oliveira, Bruno Pereira dos Santos, Marcelo Arbo   +2 more
doaj   +1 more source

Dispersive liquid-liquid microextraction-gas chromatography-mass spectrometric determination of polycylic aromatic hydrocarbons in water [PDF]

, 2011
In this work, a sample preparation method based on dispersive liquid-liquid microextraction (DLLME) coupled with gas chromatography-mass spectrometry (GC-MS) was developed for the extraction of polycyclic aromatic hydrocarbons (PAHs), namely phenanthrene
Sharef A., Sarra Younes
core  

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source