Results 31 to 40 of about 48,147 (228)

An optimized analytical method for the simultaneous detection of iodoform, iodoacetic acid, and other trihalomethanes and haloacetic acids in drinking water [PDF]

, 2013
An optimized method is presented using liquid-liquid extraction and derivatization for the extraction of iodoacetic acid (IAA) and other haloacetic acids (HAA9) and direct extraction of iodoform (IF) and other trihalomethanes (THM4) from drinking water ...
He, G, Jiang, S, Liu, X, Qu, W, Templeton, MR, Wei, X, Zheng, W   +6 more
core   +3 more sources

Non-steroidal anti-inflammatory drugs (NSAIDs) in the environment: Updates on pretreatment and determination methods

Ecotoxicology and Environmental Safety, 2023
Non-steroidal anti-inflammatory drugs (NSAIDs) are widely used in human and animal health care to reduce persistent inflammation, pain and fever because of their anti-inflammatory, analgesic and antipyretic effects.
Yu Zhou, Jia-yuan Lin, Yu Bian, Chen-jie Ren, Ni Xiao-li, Chun-yu Yang, Xu Xiao-xue, Xue-song Feng   +7 more
doaj   +1 more source

Urinary naphthalene and phenanthrene as biomarkers of occupational exposure to polycyclic aromatic hydrocarbons. [PDF]

, 2008
OBJECTIVES: The study investigated the utility of unmetabolised naphthalene (Nap) and phenanthrene (Phe) in urine as surrogates for exposures to mixtures of polycyclic aromatic hydrocarbons (PAHs).
Garshick, E, Hart, J. E., Herrick, R. F., Laden, F., McClean, M. D., Rappaport, S. M., Smith, T. J., Sobus, J. R., Waidyanatha, S., Zheng, Y.   +9 more
core   +3 more sources

Analysis of imidazoles and triazoles in biological samples after MicroExtraction by packed sorbent [PDF]

, 2017
This paper reports the MEPS-HPLC-DAD method for the simultaneous determination of 12 azole drugs (bifonazole, butoconazole, clotrimazole, econazole, itraconazole, ketoconazole, miconazole, posaconazole, ravuconazole, terconazole, tioconazole and ...
Bellagamba, Giuseppe, Campestre, Cristina, Carradori, Simone, Celia, Christian, De Luca, Elisa, Di Marzio, Luisa, Guglielmi, Paolo, Locatelli, Marcello, Menta, Sergio, Zengin, Gokhan   +9 more
core   +3 more sources

Microextraction Techniques with Deep Eutectic Solvents

Molecules, 2020
In this review, the ever-increasing use of deep eutectic solvents (DES) in microextraction techniques will be discussed, focusing on the reasons needed to replace conventional extraction techniques with greener approaches that follow the principles of ...
Orfeas-Evangelos Plastiras, Eirini Andreasidou, Victoria Samanidou   +2 more
doaj   +1 more source

Optimization of Solid Phase Microextraction Conditions for Volatile Components of Foods by Using Response Surface Methodology

Turkish Journal of Agriculture: Food Science and Technology, 2017
High vacuum steam distillation, simultaneous distillation extraction, steam distillation, purge and trap methods are used for sample preparation in volatile component analysis. Since these methods are difficult and costly to implement, these methods have
Ceyda Dadalı, Yeşim Elmacı Elmacı
doaj   +1 more source

An easily prepared graphene oxide-ionic liquid hybrid nanomaterial for micro-solid phase extraction and preconcentration of Hg in water samples [PDF]

, 2018
A preconcentration method based on the use of graphene oxide (GO) functionalized with an ionic liquid (IL) was developed for trace Hg determination in water samples.
Cruz Sotolongo, Annaly, Martinis, Estefanía Mabel, Wuilloud, Rodolfo German   +2 more
core   +1 more source

Recent progress in solid- and liquid-phase microextraction methods for the extraction and quantification of current-use pesticides

Advances in Sample Preparation
The widespread use of pesticides has led to their pervasive presence in diverse environmental matrices such as water, air, and soil. Therefore, accurate and reliable determination of pesticides in various sample types is essential.
Seyedeh Bentolhoda Hosseinian, Milad Ghani, Jahan Bakhsh Raoof   +2 more
doaj   +1 more source

Applications of Liquid-Phase Microextraction in the Sample Preparation of Environmental Solid Samples

Molecules, 2014
Solvent extraction remains one of the fundamental sample preparation techniques in the analysis of environmental solid samples, but organic solvents are toxic and environmentally harmful, therefore one of the possible greening directions is its ...
Helena Prosen
doaj   +1 more source

Determination of pesticides in the respirable fraction of airborne particulate matter by high-performance liquid chromatography–tandem mass spectrometry [PDF]

, 2017
Potential harmful effects of pesticides include risks to human health of workers involved in the wet spray application in cultivated areas. Inhalation exposure depends on several factors including pesticide concentrations in the respirable fraction of ...
Buiarelli, Francesca, Console, Carla, De Gennaro, Martina, Di Filippo, Patrizia, Laurendi, Vincenzo, Pomata, Donatella, Puri, Daniele, Riccardi, Carmela   +7 more
core   +1 more source