Results 161 to 170 of about 100,399 (331)

Comprehensive Discrimination of Amomi Fructus From Different Origins Using UHPLC‐Q‐Orbitrap MS, HS–GC–MS/MS, NMR and MIR Technologies Based On Data Fusion Strategies

open access: yesAnalytical Science Advances, Volume 6, Issue 2, December 2025.
ABSTRACT Amomi Fructus (SR) is an important edible herb widely used as a spice and traditional Chinese medicine. To comprehensively solve the serious practical problems of origins and species confusion in SR, the systematic characterization methods were established by liquid chromatography–mass spectrometer, gas chromatography–mass spectrometer ...
Yuxin Zhang   +8 more
wiley   +1 more source

Separation and Determination of Theobromine and Caffeine in Cocoa Beans Extract Using TLC‐SERS: Identification and Computational Insights

open access: yesAnalytical Science Advances, Volume 6, Issue 2, December 2025.
ABSTRACT In recent years there has been a growing interest in cocoa and their sub products in the world, given the beneficial properties of these products. This interest has led to increased research in the study of the composition of cocoa and its relationship with its varieties, mainly the principal alkaloids, theobromine and caffeine.
Maria Rodriguez   +5 more
wiley   +1 more source

Mediterranean chemometrics [PDF]

open access: yesAnalytical and Bioanalytical Chemistry, 2010
Luis, Cuadros-Rodríguez   +1 more
openaire   +2 more sources

(Non) Linear Regression Modeling [PDF]

open access: yes
We will study causal relationships of a known form between random variables. Given a model, we distinguish one or more dependent (endogenous) variables Y = (Y1, . . .
Čížek, Pavel
core  

Fourier‐transform mid‐infrared spectroscopy for high‐throughput phenotyping of total dietary fiber in pulse crops

open access: yesThe Plant Phenome Journal, Volume 8, Issue 1, December 2025.
Abstract This study uses Fourier‐transform mid‐infrared (FT‐MIR) spectroscopy as a high‐throughput phenotyping tool to quantify total dietary fiber (TDF) in chickpea (Cicer arietinum L.), dry pea (Pisum sativum L.), and lentil (Lens culinaris Medik.) for pulse crop breeding purposes.
Amod Madurapperumage   +4 more
wiley   +1 more source

A study of neolignan compounds with biological activity against Paracoccidioides brasiliensis by using quantum chemical and chemometric methods [PDF]

open access: gold, 2003
Ademir J. Camargo   +5 more
openalex   +1 more source

Predicting Forage Nutritional Quality With Near‐Infrared Spectroscopy

open access: yesJournal of Sustainable Agriculture and Environment, Volume 4, Issue 3, September 2025.
ABSTRACT The quality of green forage is crucial in pasture grazing, influencing both animal welfare, environmental sustainability, and production yield. Traditionally, the evaluation of forage composition requires time‐consuming and costly chemical analysis. In this context, near‐infrared spectroscopy (NIR) emerges as a promising alternative.
Alessandro Benelli   +8 more
wiley   +1 more source

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