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Toplam kayıt 189, listelenen: 91-100
Insights into brewed tea waste as a green and low-priced adsorbent for solid-phase extraction of Cd(II) ions: isotherm, kinetic, and artificial neural network approach
(Springer Nature, 2022)
In the present research, brewed tea waste (BTW) was utilized as a green, low-priced, and abundant adsorbent for separation/preconcentration of Cd(II) ions through solid-phase extraction method from water and foods for the ...
Highly Efficient Spectrophotometric Determination of Cu2+ ion in Aqueous Medium Using a thiosemicarbazone-derivative Ligand
(SPRINGER/PLENUM PUBLISHERS, 2022)
A new simple spectrophotometric method for the determination of Cu2+ ion was developed using an thiosemicarbazone compound, 2-{4-[Bis(2-chloroethyl)amino]benzylidene}-N-[(4-methylthio)phenyl]hydrazinecarbothioamide (TSC). ...
Different spacer-arm attached magnetic nanoparticles for covalent immobilization of Jack bean urease
(De Gruyter Open Ltd, 2022)
Objectives: This study aims the covalent immobilization of Jack bean urease on Fe3O4 magnetic nanoparticles via glutaraldehyde (urease@MNPs-Si-Glu) and epichlorohydrin (urease@MNPs-ECH) spacer arms. Methods: The optimum ...
A facile and sensitive coprecipitation method coupled with flame atomic absorption spectrometry for quantification of Cu(II) ions in complex matrices
(SERBIAN CHEMICAL SOC, 2022)
In the present investigation, the application of an organic coprecipit-ant, 2-[5,6-dichloro-2-(2-bromobenzyl)-1H-benzimidazole-1-yl]acetohydrazide (DIBBA), for separation and preconcentration of Cu(II) ions in fruit and ...
Preliminary investigations of ice creams for the determination of the physicochemical properties and aroma compounds by GC-MS produced from cow, sheep, goat, and buffalo milk
(M H SCHAPER GMBH CO KG, 2022)
In the present study, four different ice creams were produced using cow, buffalo, goat, and sheep milk. The physicochemical, sensory properties and aroma profile analyzes of ice creams were carried out and the differences ...
SOME SPECIAL SMARANDACHE RULED SURFACES BY FRENET FRAME IN E3-II
(HONAM MATHEMATICAL SOC, 2022)
In this study, firstly Smarandache ruled surfaces whose base curves are Smarandache curves derived from Frenet vectors of the curve, and whose direction vectors are unit vectors plotting Smarandache curves, are created. ...
Identification of Antioxidant Activity by Different Methods of a Freshwater Alga (Microspora sp.) Collected From a High Mountain Lake
(2019)
Algae contain a large amount of biological active compounds functioning as antioxidant, antimicrobial and anti-tumour. In the present research, antioxidant activity of freshwater alga Microspora sp. Chlorophyta extract ...
A new colorimetric DPPH• scavenging activity method with no need for a spectrophotometer applied on synthetic and natural antioxidants and medicinal herbs
(2017)
2,2-Diphenyl-1-picrylhydrazyl (DPPH ) radical scavenging, the most commonly used antioxidant methodwith more than seventeen thousand articles cited, is very practical; however, as with most assays, it hasthe major disadvantage ...
Geographic distribution of two Montivipera taxa using ecological niche modeling
(Springer, 2023)
Ecological niche modeling predicts the potential distribution areas of species and contributes to measuring the niche differentiation among taxa. Montivipera albizona and M. bulgardaghica are two mountain viper taxa ...
The Impact of Recreational Use on Land Cover at Uludağ National Park (Turkey)
(Istanbul University-Cerrahpasa, 2021)
he intense pressure resulting from population growth and urbanization along with technology has created the need for utilizing natural areas for tourism and recreational purposes and has necessitated the protection, ...