Results 251 to 260 of about 340,608 (289)

Extraction, sample preparation, and analytical methods for quality issues of essential oils

2016
Aromatherapy is the therapeutic use of essential oils to cure, mitigate, or prevent diseases, infections, and indispositions mainly by inhalation, but also by the skin (Buchbauer et al., 1993; Lee et al., 2012). In recent years there has been increasing attention to screening plants to study the biological activities of their essential oils from the ...
MONTORO, Paola, MASULLO, MILENA, PIACENTE, Sonia, PIZZA, Cosimo   +3 more
openaire   +1 more source

Direct sample preparation mass spectrometry analysis: toward greener analytical methods

2023
Fil: Tascon, Marcos. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental. - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario.
Tascon, Marcos, Gomez Rios, German Augusto   +1 more
openaire   +1 more source

Effect of Sample Preparation Methods on Analytical Values of Some Micro‐ and Secondary Nutrients in Plant Tissues

Communications in Soil Science and Plant Analysis, 2008
Abstract: Plant tissues of rice and wheat crops (n = 5) collected at harvest time were wet‐ashed in di‐acid mixture [analytical‐grade nitric acid (HNO3)–perchloric acid (HClO4), 3:1, v/v] on a sand bath at 200 °C or dry‐ashed in a muffle furnace at 550 °C for 3 h in triplicate.
Prashant Srivastava, Prakash C. Srivastava, Upasana Srivastava, Uma S. Singh   +3 more
openaire   +1 more source

Experimental Design Techniques for Optimization of Analytical Methods. Part I: Separation and Sample Preparation Techniques

Current Analytical Chemistry, 2008
A review is presented on recent applications of experimental design and optimization techniques for the analysis of compounds of food, biomedical, toxicological and environmental concern. The main features and the significant advantages of chemometric approaches are discussed.
BIANCHI, Federica, CARERI, Maria
openaire   +2 more sources

Advances and challenges in sample preparation and analytical methods for water-soluble vitamins: Application in food, clinical, pharmaceutical samples

Journal of Pharmaceutical and Biomedical Analysis
This review provides a comprehensive analysis of advances and challenges in the sample preparation and analytical methods for determining water-soluble vitamins (WSVs) in foods, clinical, and pharmaceutical samples. WSVs, including vitamin C and B-complex vitamins, are essential for various physiological functions such as energy metabolism, immune ...
, Tikeshwari, Kamlesh, Shrivas, Khushali, Tandey, Anuradha, Sharma, Nagendra Kumar, Chandrawanshi, Kallol K, Ghosh   +5 more
openaire   +2 more sources

Advances in sample preparation techniques combined with analytical methods for the determination of antiepileptic drugs (AEDs)

TrAC Trends in Analytical Chemistry
Epilepsy continues to be a worldwide affliction. Monitoring antiepileptic drugs (AEDs) plays an important role in identifying the potential adverse effects of medications found in wastewater and adjusting doses, preventing drug-drug interactions, and minimizing patient adverse effects.
Mürüvvet Begüm Özen, Hassan Elzain Hassan Ahmed, Mustafa Soylak   +2 more
openaire   +2 more sources

[Preparation of sub-standard samples and XRF analytical method of powder non-metallic minerals].

Guang pu xue yu guang pu fen xi = Guang pu, 2015
In order to solve the problem that standard samples of non-metallic minerals are not satisfactory in practical work by X-ray fluorescence spectrometer (XRF) analysis with pressed powder pellet, a method was studied how to make sub-standard samples according to standard samples of non-metallic minerals and to determine how they can adapt to analysis of ...
Qin, Kong, Lei, Chen, Ling, Wang
openaire   +1 more source

Molecular testing opportunities on cytology effusion specimens: the pre-analytic effects of various body fluid cytology preparation methods on RNA extraction quality and targeted sequencing

Journal of the American Society of Cytopathology, 2023
Gloria H Sura, Chunxiao Fu, Michal Marczyk   +2 more
exaly  

Beryllium Analytical Signal Using ERIAD Mass-Spectrometry for Various Sample Preparation Methods

Inorganic Materials, 2021
A. A. Dyachenko, N. M. Blashenkov, N. S. Samsonova, L. N. Gall, A. A. Semenov, A. V. Lizunov, N. R. Gall, O. A. Belyaeva   +7 more
openaire   +1 more source

Comparing holistic and analytic marking methods in assessing speech act production in L2 Chinese

Language Testing, 2023
Shuai Li
exaly