Results 21 to 30 of about 1,857,789 (295)

Should we think about green or white analytical chemistry? Case study: Accelerated sample preparation using an ultrasonic bath for the simultaneous determination of Mn and Fe in beef

open access: yesHeliyon, 2023
Green Analytical Chemistry (GAC) metrics include a variety of criteria, such as the regent amounts and toxicity, energy consumption, generated waste, among others. The analytical greenness metric (AGREE) and its variant for sample preparation (AGREEprep)
Javier Silva   +3 more
doaj   +1 more source

A novel enzymatic approach to nanocrystalline cellulose preparation [PDF]

open access: yes, 2018
In this work, conditions for an enzymatic pretreatment prior to NCC isolation from cotton linter were assessed. Different cellulase doses and reaction times were studied within an experimental design and NCC were obtained. At optimal enzymatic conditions
Beltramino, Facundo   +3 more
core   +2 more sources

Implementing Green Analytical Methodologies Using Solid-Phase Microextraction: A Review

open access: yesMolecules, 2020
Implementing green analytical methodologies has been one of the main objectives of the analytical chemistry community for the past two decades. Sample preparation and extraction procedures are two parts of analytical method development that can be best ...
Kayla M. Billiard   +2 more
doaj   +1 more source

Green sample preparation methods for the analysis of bioactive compounds in bee products: A review

open access: yesAdvances in Sample Preparation, 2023
Natural extracts of bee products are being recognized worldwide as a remarkable source of bioactive compounds with diverse functionalities such as antioxidant, antimicrobial and anticancer agents.
Adrián Fuente-Ballesteros   +4 more
doaj   +1 more source

Tunable high-index photonic glasses [PDF]

open access: yes, 2019
Materials with extreme photonic properties such as maximum diffuse reflectance, high albedo, or tunable band gaps are essential in many current and future photonic devices and coatings.
Aegerter, Christof M.   +6 more
core   +1 more source

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

Magnet Integrated Fabric Phase Sorptive Extraction (MI-FPSE): A Powerful Green(er) Alternative for Sample Preparation

open access: yesAnalytica, 2022
Green(er) sample preparation technologies still dominate as the anticipated improvement in all analytical protocols. Separation scientists all over the world continuously strive to comply with the Green Analytical Chemistry (GAC) demands.
Victoria Samanidou, Abuzar Kabir
doaj   +1 more source

A comprehensive review on the use of microextraction techniques in the analysis of cosmetic products

open access: yesAdvances in Sample Preparation, 2022
Microextraction techniques have gained special relevance since their appearance in the 90s, and the analysis of cosmetic products has not been immune to this trend.
Lorenza Schettino   +3 more
doaj   +1 more source

Microscopy of a scalable superatom [PDF]

open access: yes, 2015
Strong interactions can amplify quantum effects such that they become important on macroscopic scales. Controlling these coherently on a single particle level is essential for the tailored preparation of strongly correlated quantum systems and opens up ...
Bloch, Immanuel   +5 more
core   +3 more sources

Greening Sample Preparation: New Solvents, New Sorbents [PDF]

open access: yes, 2020
Sample preparation is still identified as the bottleneck of many modern analytical procedures owing to the time-demanding nature of many of the treatment protocols in use. Sample treatment is also considered responsible for a large part of the analytical inaccuracy of analytical methodologies because of the highly manipulative nature of most of these ...
openaire   +2 more sources

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