Results 21 to 30 of about 564,980 (339)

Evolution of green chemistry and its multidimensional impacts: A review

open access: yesSaudi Pharmaceutical Journal, 2019
The growing process of industrialization was a milestone for world economic evolution. Since the 1940s, social movements have revolutionized green chemistry and provided shifts in industrial positions and sustainable processes with advances in ...
Bianca Aparecida de Marco   +4 more
doaj   +1 more source

Hydrolysis of Azadirachta indica oil using subcritical water and determination of triacylglycerides and fat acids by HT-HRGC-FID and HRGC-MS [PDF]

open access: yes, 2010
The development of modern analytical tools plays an important role in quality control. The main purpose of this study was to explore the use of subcritical water as a versatile analytical tool, employed simultaneously as a reagent and solvent, as well as
LANÇAS, Fernando Mauro   +1 more
core   +2 more sources

Separate foliar sodium selenate and zinc oxide application enhances Se but not Zn accumulation in pea (Pisum sativum L.) seeds

open access: yesFrontiers in Plant Science, 2022
Up to 15% and 17% of the world population is selenium (Se) and zinc (Zn) deficient, respectively. Pea (Pisum sativum L.) is an important staple legume with a high potential for Se and Zn biofortification in seeds. A 2-year pot experiment investigated two
Maksymilian Malka   +3 more
doaj   +1 more source

UHPLC-PDA-ESI-TOF/MS metabolic profiling and antioxidant capacity of arabica and robusta coffee silverskin: antioxidants vs phytotoxins [PDF]

open access: yes, 2017
A deeper knowledge of the chemical composition of coffee silverskin (CS) is needed due to the growing interest in its use as a food additive or an ingredient of dietary supplements.
Lavecchia, R.   +3 more
core   +1 more source

Variability in concentrations of potentially toxic elements in urban parks from six European cities [PDF]

open access: yes, 2006
Use of a harmonised sampling regime has allowed comparison of concentrations of copper, chromium, nickel, lead and zinc in six urban parks located in different European cities differing markedly in their climate and industrial history.
Ajmone-Marsanb, F.   +15 more
core   +2 more sources

Chemical and oxygen isotopic composition of Roman and late Antique glass from northern Greece [PDF]

open access: yes, 2017
The present paper emphasizes the importance of measuring the oxygen isotopic and chemical compositions of ancient glass, in order to constrain some features such as age, raw materials, and production technologies and to identify the \u201cfingerprint ...
Dotsika, Elissavet   +4 more
core   +3 more sources

On the Solar EUV Deposition in the Inner Comae of Comets with Large Gas Production Rates [PDF]

open access: yes, 2003
In this letter we have made a comparative study of degradation of solar EUV radiation and EUV-generated photoelectrons in the inner comae of comets having different gas production rates, Q, with values 1x10^28, 7x10^29, 1x10^31, and 1x10^32 s^-1.
Anil Bhardwaj   +28 more
core   +2 more sources

Green rust formation and reactivity with arsenic species [PDF]

open access: yes, 2020
Elevated levels of arsenic (As) in soils and groundwaters remain a pressing global challenge due to its widespread occurrence and distribution, high toxicity and mobility.
Perez, Jeffrey Paulo H.
core   +1 more source

Rapid Analysis of Milk Using Low-Cost Pocket-Size NIR Spectrometers and Multivariate Analysis

open access: yesFoods, 2020
The miniaturisation of analytical devices, reduction of analytical data acquisition time, or the reduction of waste generation throughout the analytical process are important requirements of modern analytical chemistry, and in particular of green ...
Jordi Riu   +4 more
doaj   +1 more source

A multicriteria analysis of photovoltaic systems: Energetic, environmental, and economic assessments [PDF]

open access: yes, 2015
The development of photovoltaic (PV) energy has led to rising efficiencies, better reliability, and falling prices. A multicriteria analysis (MCA) of PV systems is proposed in this paper in order to evaluate the sustainability of alternative projects ...
Cucchiella, Federica, D'Adamo, Idiano
core   +4 more sources

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