Results 31 to 40 of about 381,051 (306)

Determination of Inorganic Ions in Parenteral Nutrition Solutions by Ion Chromatography

open access: yesMolecules, 2022
A new, simple and sensitive ion chromatography (IC) method for the determination of sodium, potassium, magnesium, calcium and chloride in a parenteral nutrition (PN) solution was developed and validated.
Zhiqi Wen   +3 more
doaj   +1 more source

The New Zealand Kauri (Agathis Australis) Research Project: A Radiocarbon Dating Intercomparison of Younger Dryas Wood and Implications for IntCal13 [PDF]

open access: yes, 2013
We describe here the New Zealand kauri (Agathis australis) Younger Dryas (YD) research project, which aims to undertake Δ14C analysis of ~140 decadal floating wood samples spanning the time interval ~13.1–11.7 kyr cal BP.
Boswijk, Gretel   +14 more
core   +2 more sources

Simultaneous determination of free methamphetamine, pethidine, ketamine and tramadol in urine by dispersive liquid–liquid microextraction combined with GC–MS

open access: yesForensic Sciences Research, 2019
A simple and rapid dispersive liquid–liquid microextraction (DLLME) technique coupled with gas chromatography–ion trap mass spectrometry (GC–MS) was developed for the extraction and analysis of methamphetamine (MA), pethidine (PD), ketamine (KT) and ...
Fangmin Xu, Lingyun Liu
doaj   +1 more source

Evaluation of different food matrices via a dihydropteroate synthase-based biosensor for the screening of sulfonamide residues

open access: yesFood and Agricultural Immunology, 2020
In a previous study, we developed a dihydropteroate synthase (DHPS)-based biosensor for multi-sulfonamides (SAs), which could detect 29 SAs with IC50 values below 100 ng mL−1.
Xiao Liang   +3 more
doaj   +1 more source

Assessment of different pre-treatment methods for the removal of limonene in citrus waste and their effect on methane potential and methane production rate [PDF]

open access: yes, 2016
The objective of this study was to assess the limonene removal efficiency of three pre-treatment methods when applied to citrus waste and to evaluate their effects on the biochemical methane potential (BMP) and the methane production rate (MPR) using
de Benito, Amparo   +3 more
core   +2 more sources

Research Progress on Sample Pretreatment Techniques for Alternaria Toxins Residues Analysis in Food

open access: yesLiang you shipin ke-ji
The food infected by Alternaria species can produce Alternaria toxins with genotoxicity, cytotoxicity, reproductive toxicity, and developmental toxicity.
GUAN Wen-bi, MA Jia-li
doaj   +1 more source

Solid Phase-Based Microextraction Techniques in Therapeutic Drug Monitoring

open access: yesPharmaceutics, 2023
Therapeutic drug monitoring is an established practice for a small group of drugs, particularly those presenting narrow therapeutic windows, for which there is a direct relationship between concentration and pharmacological effects at the site of action.
Sofia Soares   +3 more
doaj   +1 more source

Bisdemethoxycurcumin and Its Cyclized Pyrazole Analogue Differentially Disrupt Lipopolysaccharide Signalling in Human Monocyte-Derived Macrophages [PDF]

open access: yes, 2018
open11noSeveral studies suggest that curcumin and related compounds possess antioxidant and anti-inflammatory properties including modulation of lipopolysaccharide- (LPS-) mediated signalling in macrophage cell models. We here investigated the effects of

core   +1 more source

Analytical Techniques and Pharmacokinetics of Gastrodia elata Blume and Its Constituents

open access: yesMolecules, 2017
Gastrodia elata Blume (G. elata), commonly called Tianma in Chinese, is an important and notable traditional Chinese medicine (TCM), which has been used in China as an anticonvulsant, analgesic, sedative, anti-asthma, anti-immune drug since ancient times.
Jinyi Wu   +3 more
doaj   +1 more source

Sperm chromatin dispersion test before sperm preparation is predictive of clinical pregnancy in cases of unexplained infertility treated with intrauterine insemination and induction with clomiphene citrate [PDF]

open access: yes, 2016
Background/aims: A large proportion of men with normal sperm results as analyzed using conventional techniques have fragmented DNA in their spermatozoa.
De Croo, Ilse   +4 more
core   +2 more sources

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