Results 71 to 80 of about 5,024,272 (209)

Liquid phase microextraction techniques combined with chromatography analysis: a review

Acta Chromatographica, 2020
Sample pretreatment is the first and the most important step of an analytical procedure. In routine analysis, liquid–liquid microextraction (LLE) is the most widely used sample pre-treatment technique, whose goal is to isolate the target analytes, provide enrichment, with cleanup to lower the chemical noise, and enhance the signal. The use of extensive
Dugheri, Stefano, Mucci, Nicola, Bonari, Alessandro, Marrubini, Giorgio, Cappelli, Giovanni, Ubiali, Daniela, Campagna, Marcello, Montalti, Manfredi, Arcangeli, Giulio   +8 more
openaire   +4 more sources

Valorization of Zingiber officinale Roscoe leaf biomass: phytotoxic potential and chemical profiling toward sustainable weed management

Journal of the Science of Food and Agriculture, Volume 106, Issue 13, Page 8189-8201, October 2026.
Abstract BACKGROUND Zingiber officinale Roscoe is widely cultivated as a spice and functional food, generating substantial amounts of aerial biomass that is commonly discarded after harvest. Within a circular‐economy framework, this study investigated the phytotoxic potential of Z.
Sara Vitalini, Orlando Innaurato, Shadab Faramarzi, Alessandro Palmioli, Stefania Garzoli, Valentina Vaglia, Cristina Airoldi, Marcello Iriti   +7 more
wiley   +1 more source

Alternativas verdes para o preparo de amostra e determinação de poluentes fenólicos em água Green alternatives for sample preparation and determination of phenolic pollutants in water

Química Nova, 2010
The restricted availability of water sources suitable for consumption and high costs for obtaining potable water has caused an increase of the conscience concerning the use.
Guilherme Dias Rodrigues, Luis Henrique Mendes da Silva, Maria do Carmo Hespanhol da Silva   +2 more
doaj   +1 more source

Vertical Farm Versus Glasshouse: Comparative Analysis of Growth, Antioxidants, and Volatile Profiles in Four Basil Varieties

Plant-Environment Interactions, Volume 7, Issue 5, October 2026.
ABSTRACT Global population growth and climate change are placing unprecedented pressure on food systems, threatening crop productivity and nutritional quality. Vertical farming, as a form of totally controlled‐environment agriculture, offers an innovative approach to optimizing plant growth and enhancing the quality of high‐value crops such as basil ...
Martina Pičmanová, Nick Bennett, Lidiya Babenko, Yogeswari Rajarathinam, Simon Pont, Ceri Austin, Tanveer Khan, Gordon McDougall, Derek Stewart   +8 more
wiley   +1 more source

Determinaçao do teor de nicotina em cigarros comerciais e ilegalmente comercilizados utilizando microextraçao em fase sólida e cromatografia Gasosa acoplada a espectrometria de massas [PDF]

, 2009
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.Comercialmente, o tabaco pode ser encontrado no cigarro, estando presente seu principal alcalóide, a nicotina.
Trilha, Rafaella
core  

The application of hollow fiber-liquid phase microextraction based on green chemistry to analyze carcinogenic nitrosamines in food samples [PDF]

, 2014
A hollow fiber-liquid phase microextraction coupled with gas chromatography method has been developed for the determination of carcinogenic nitrosodiethylamine and nitrosodipropylamine in several food samples. In this method, a small amount of toluene as
Yanuardi Raharjo, .-, Miratul Khasanah, .-, Usreg Sri Handajani,, .-   +2 more
core   +2 more sources

Volatile flavor components in strong-flavor Baijiu detected by different pretreatment methods combined with GC-MS [PDF]

Zhongguo niangzao
The volatile flavor compounds in strong-flavor (Nongxiangxing) Baijiu were detected and analyzed by four pretreatment methods including solid phase extraction (SPE), liquid-liquid microextraction (LLME), headspace-solid phase microextraction (HS-SPME ...
FENG Ziyun, YANG Kangzhuo, HE Zhanglan, WANG Jianli, ZHENG Jia
doaj   +1 more source

Domestication‐associated reduction of methyl salicylate in tomato root and its significance for resistance to root‐knot nematode

New Phytologist, Volume 252, Issue 1, Page 414-426, October 2026.
Root volatile profiling reveals domestication‐associated variation in methyl salicylate (MeSA) accumulation in tomato. Summary Methyl salicylate (MeSA) plays diverse roles in the aerial parts of plants. By contrast, its biosynthesis and function in roots remain poorly understood.
Weijiao Wang, Manoj Sapkota, Sobhan Bahrami Zadegan, Tarek Hewezi, Esther van der Knaap, Feng Chen   +5 more
wiley   +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