Results 81 to 90 of about 3,911 (219)

MSPD Sample Preparation Approach for Reversed-Phase Liquid Chromatographic Analysis of Pesticide Residues in Stem of Coconut Palm [PDF]

open access: yesBulletin of Environmental Contamination and Toxicology, 2013
A method was developed using matrix solid-phase dispersion, together with liquid chromatography with ultraviolet diode array detector for determination of carbofuran, difenoconazole, β-cyfluthrin, spirodiclofen and thiophanate-methyl in stem of coconut palm.
Jordana Alves, Ferreira   +5 more
openaire   +2 more sources

A Diol-Based-Matrix Solid-Phase Dispersion Method for the Simultaneous Extraction and Determination of 13 Compounds From Angelicae Pubescentis Radix by Ultra High-Performance Liquid Chromatography

open access: yesFrontiers in Pharmacology, 2019
A simple and eco-friendly Diol-based-matrix solid-phase dispersion method (MSPD) was optimized and established to simultaneously extract 13 bioactive compounds (7 coumarins and 6 phenolic acids) in Angelicae Pubescentis Radix (APR) by ultrahigh ...
Mingya Ding   +12 more
doaj   +1 more source

Affordable Automated Modules for Lab‐Scale High‐Throughput Synthesis of Inorganic Materials

open access: yesChemistry – A European Journal, Volume 31, Issue 52, September 16, 2025.
A semi‐automated high‐throughput synthesis station, developed within the MAITENA platform, features two modular units: one for solid‐state and wet‐chemistry routes (ceramic, sol‐gel, Pechini), and another for microwave‐assisted solvothermal synthesis. It enables reproducible workflows, phase diagram exploration, and morphology control, demonstrated on ...
Iciar Monterrubio   +10 more
wiley   +1 more source

Determination of pesticides in fruit and fruit juices by chromatographic methods. An overview [PDF]

open access: yes, 2011
In order to combat a variety of pests, pesticides are widely used in fruits. Several extraction procedures (liquid extraction, single drop microextraction, microwave-assisted extraction, pressurized liquid extraction, supercritical fluid extraction ...
Delerue-Matos, Cristina   +3 more
core   +1 more source

Von der ›Sozialistischen Arbeiterpartei‹ zur ›Sozialdemokratischen Partei Deutschlands‹. Die Geschichte der politischen Arbeiterbewegung im Kaiserreich (1871 bis 1918) [PDF]

open access: yes, 2012
Der Vortrag skizziert die historisch-politischen Grundlagen des 19. Jahrhunderts, die schließlich in der zweiten Hälfte zur Etablierung des Sozialismus als politischer Strömung und der Gründung sozialistischer Parteien führten.
Hofmann, Andreas C.
core   +1 more source

Optimal Algorithms for Non-Smooth Distributed Optimization in Networks

open access: yes, 2018
In this work, we consider the distributed optimization of non-smooth convex functions using a network of computing units. We investigate this problem under two regularity assumptions: (1) the Lipschitz continuity of the global objective function, and (2)
Bach, Francis   +4 more
core  

Synchrotron Radiation Pair Distribution Function Analysis of Gels in Cements [PDF]

open access: yes, 2017
The analysis of atomic ordering in a nanocrystalline phase with small particle sizes, below 5 nm, is intrinsically complicated because of the lack of long-range order.
Cuesta-Garcia, Ana Maria   +6 more
core   +4 more sources

Matrix Solid Phase Dispersion(MSPD) Extraction and Gas Chromatographic Screening of Nine Chlorinated Pesticides in Beef Fat

open access: yesJournal of AOAC INTERNATIONAL, 1991
Abstract A multiresldue technique Is presented for the extraction and quantitative gas chromatographic screening of 9 insecticides (lindane, heptachlor, aldrin, heptachlor epoxide, p.p'-DDE, dleldrln, endrin, p,p'-TDE, and p.p'-DDT) as residues In beef fat.
A R, Long, M M, Soliman, S A, Barker
openaire   +2 more sources

Triple‐point phase diagrams for BTO‐based ceramics

open access: yesJournal of the American Ceramic Society, Volume 108, Issue 5, May 2025.
Abstract The temperature–composition structural phase diagram of the BTO‐based ferroelectric system Ba0.94Ca0.06Ti1−xHfxO3 (0.05 ≤ x ≤ 0.15) is investigated using high‐angular resolution synchrotron X‐ray powder diffraction and dielectric permittivity measurements.
David Gracia   +4 more
wiley   +1 more source

Vehicle test report: South Coast technology electric conversion of a Volkswagen Rabbit [PDF]

open access: yes, 1981
The South Coast Technology Volkswagen Rabbit, was tested at the Jet Propulsion Laboratory's (JPL) dynamometer facility and at JPL's Edwards Test Station (ETS).
Bryant, J. A.   +2 more
core   +2 more sources

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