Results 121 to 130 of about 76,914 (265)

Sodium benzoate and potassium sorbate preservatives in food stuffs in Iran [PDF]

, 2015
A high-performance liquid chromatography method was applied for the determination of the levels of benzoate and sorbate in 400 food samples, including pickled cucumbers, canned tomato pastes, sour cherry jams, soft drinks, fruit juices and dairy products
Akbari Azam, M., Amirpour, M., Arman, A., Moradi-Khatoonabadi, Z., Yolmeh, A.   +4 more
core  

Natural deep eutectic solvents and natural solid biosorbents in microextraction techniques of organic compounds based on chromatographic techniques: A critical review

Advances in Sample Preparation
Analytical chemistry has increasingly focused on the environmental impact of its methods, with significant attention given to green principles in sample preparation. Techniques like Solid-Phase Microextraction (SPME), Micro-Solid-Phase Extraction (µ-SPE),
Eduardo Carasek, Lucas Morés, Natan da Cunha, Guilherme Leal Branco, Adriana Neves Dias   +4 more
doaj   +1 more source

Trends in extraction and purification methods of Lignans in plant-derived foods

Food Chemistry: X
Lignans are widely used as dietary supplements within health foods. However, excess addition of lignans can induce adverse reactions, therefore, it is necessary to develop rapid, effective, economical, and environmentally friendly extraction and ...
Yu-tong Yang, Yuan Zhang, Yu Bian, Juan Zhu, Xue-song Feng   +4 more
doaj   +1 more source

Multi-walled carbon nanotubes modified with iron oxide and silver nanoparticles (MWCNT-Fe3O4/Ag) as a novel adsorbent for determining PAEs in carbonated soft drinks using magnetic SPE-GC/MS method [PDF]

, 2018
The synthesis of compounds with an excellent adsorption capability plays an essential role to remove contaminants such as phthalic acid esters (PAEs) with potential carcinogenic characteristics from different food products. In this context, for the first
Ahmadloo, M., Alimohammadi, M., Azari, A., Baghani, A.N., Delikhoon, M., Dobaradaran, S., EÅ�, I., Jahed Khaniki, G., Moazzen, M., Mousavi Khaneghah, A., Nazmara, S., Rastkari, N., Shariatifar, N., Yousefinejad, S.   +13 more
core  

Dispersive liquid-liquid microextraction and microsample injection

, 2013
A method was developed for inorganic arsenic speciation analysis of water samples by a microsample injection system coupled with inductively coupled plasma mass spectrometry (MIS-ICP-MS) following a validated dispersive liquid-liquid microextraction (DLLME).
Elci, L, Elci, A, Berg, TA, Tyson, JF
openaire   +2 more sources

Emulsive Liquid–Liquid Microextraction for the Determination of Phthalic Acid Esters in Environmental Water Samples

Molecules
A convenient, rapid, and environmentally friendly method, emulsive liquid–liquid microextraction combined with high-performance liquid chromatography, was established to determine phthalic acid esters in tap, river, lake, and sea water.
Xinyuan Bi, Chi Zhang, Xiaorong Xue, Shangjun Su, Zhiping Yang, Xu Jing, Qiang Zhang   +6 more
doaj   +1 more source

In-syringe dispersive liquid-liquid microextraction with liquid chromatographic determination of synthetic pyrethroids in surface water

Journal of Analytical Science and Technology, 2012
An indigenously fabricated in laboratory glass syringe was used for in-syringe dispersive liquid-liquid microextraction (is-DLLME) and preconcentration of synthetic pyrethroids (SPs) from surface waters suitable for their determination by high ...
Saeed S. Albaseer, R. Nageswara Rao, Y. V. Swamy, K. Mukkanti   +3 more
doaj  

Deep Eutectic Solvent-Based Dispersive Liquid-Liquid Microextraction Coupled with LC-MS/MS for the Analysis of Two Ochratoxins in Capsicum. [PDF]

Molecules, 2023
Yang H, Li J, Mao J, Xu C, Song J, Xie F.   +5 more
europepmc   +1 more source

Dispersive liquid-liquid microextraction and liquid chromatographic determination of pentachlorophenol in water

Open Chemistry, 2009
Farhadi Khalil, Farajzadeh Mir, Matin Amir, Hashemi Paria   +3 more
doaj   +1 more source

Solid Dispersant-Based Dispersive Liquid–Liquid Microextraction for Determining Triazine Herbicides in Environmental Water Samples

Separations
An innovative dispersive liquid–liquid microextraction technique utilizing a solid dispersion was established for the quantification of triazine herbicides in environmental water samples.
Bin Hao, Nannan Zhang, Chunli Chen, Yuxi Ji, Zhihui Zhao, Li Wang, Hongqiang Dong   +6 more
doaj   +1 more source