Results 21 to 30 of about 3,379 (185)

Fósforo em solos representativos do estado da paraíba: II- disponibilidade de fósforo para plantas de milho Phosphorus in representative soils of the state of paraíba: II- phosphorus availability for corn plants

Revista Brasileira de Ciência do Solo, 2009
Os laboratórios de fertilidade do solo do Estado da Paraíba utilizam apenas o extrator Mehlich-1 para avaliar o teor de P disponível, independente do grau de intemperismo do solo.
Daise Ribeiro de Farias, Fábio Henrique Tavares de Oliveira, Djail Santos, Jandeilson Alves de Arruda, Ricardo Bezerra Hoffmann, Roberto Ferreira Novais   +5 more
doaj   +1 more source

Método Mehlich 3 como substituinte ao HCl para extração de Cobre e Zinco em solos com alto teor de matéria orgânica do sul do Brasil Mehlich 3 method as substituent to the HCl method for extraction of Copper and Zinc in soils from Southern Brazil with high levels of organic matter

Ciência Rural, 2012
No presente trabalho, foram comparados dois métodos de extração de cobre (Cu) e zinco (Zn) em solos com teor de matéria orgânica (MO) maior que 50g kg-1.
Evandro Luiz Schoninger, Luciano Colpo Gatiboni, Daniel Linhares   +2 more
doaj   +1 more source

Size fractionation of dissolved (<0.45 µm) trace elements from extracted soil with water and CaCl2 using AF4-UV-ICPMS to predict their bioavailability

Geoderma, 2023
Dissolved (
Lina Du, Chad W. Cuss, Miles Dyck, Tommy Noernberg, William Shotyk   +4 more
doaj   +1 more source

Development of a spectrophotometric approach for assessing pork quality during storage

Теория и практика переработки мяса
The annual growth of meat production, accompanied by significant quality deterioration at all stages of the production chain, drives the development of fast and highly accurate control methods.
V. D. Raznichenka, A. U. Shkabrou, L. U. Lazovikava   +2 more
doaj   +1 more source

Assessment of micronutrient extractants from soils of Paraná, Brazil

Revista Brasileira de Ciência do Solo, 2011
In Brazil, plant-available micronutrients in the soil can be determined by several chemical extractants, the most common of which are dilute acid and chelating solutions. The purpose of this study was to assess the extractants 0.1 mol L-1 HCl, Mehlich-1,
Marcos Vinicius Mansano Sarto, Fábio Steiner, Maria do Carmo Lana   +2 more
doaj   +1 more source

Azocalixarene. 5: p-Substituted Azocalix4arenes as Extractants for Dichromate Anions [PDF]

Pakistan Journal of Analytical & Environmental Chemistry, 2008
In this article, chromium(VI) extraction properties of two azocalix4arene based receptors (L4 and L6) are reported. A preliminary evaluation of the binding efficiencies of p-substituted azocalix4arene derivatives L4 and L6 was carried out by solvent ...
Hasalettin Deligöz, Mine Sulak Ak, Shahabuddin Memon, Mustafa Yilmaz   +3 more
doaj  

Design and Optimization of a Double‐Column Vapor Recompression Heat Pump Distillation Process via NSGA‐II for Separating Ternary Wide‐Boiling Mixtures

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study proposes a novel double‐column vapor recompression heat pump (DCVRHP) distillation process for separating ternary wide‐boiling‐range mixtures under two different vapor conditions: n‐hexane/n‐heptane/n‐octane using low pressure steam and n‐hexanol/n‐octanol/n‐decanol using high pressure steam.
Zeyang Li, Xiaoxin Gao, Xiaoyu Kang, Ruijie Wang, Xiyuan Chen   +4 more
wiley   +1 more source

Chelating Extractants for Metals

Metals, 2022
In the present review, works on the classes of chelating extractants for metals, compounds with several amide and carboxyl groups, azomethines, oximes, macrocyclic compounds (crown ethers and calixarenes), phenanthroline derivatives, and others are ...
Pavel Yudaev, Evgeniy Chistyakov
doaj   +1 more source

Beyond wound sealing: A dual‐functional adhesive nanofiber membrane promoting coagulation and osteogenesis in extraction sites

BMEMat, EarlyView.
Inspired by the suction mechanics of octopus suckers, a dual‐layer nanofiber membrane integrates antibacterial protection, strong wet adhesion, and osteogenic support, offering a bioinspired strategy for effective hemostasis and alveolar bone preservation.
Huijing Ma, Liheng Gao, Hao Liang, Wentao Jiang, Junyi Wang, Jiajia Wang, Shuhan Duan, Lingxi Meng, Adilijiang Yimiti, Wenjie Zhang   +9 more
wiley   +1 more source

Advances in Sustainable Production of Bio‐Derived 5‐Alkoxymethylfurfural and Levulinate Esters: A Comprehensive Review

Carbon Energy, EarlyView.
The present review discusses the advancement in the catalytic synthesis of 5‐alkoxymethylfurfural (AMF) and levulinate esters (LEs) from the aspects of catalytic systems, reaction mechanisms, product isolation, and techno‐economic analysis, supplying valuable insights toward future sustainable and efficient manufacture of AMF and LEs. ABSTRACT The huge
Jun Zhang, Chunxiang Yang, Yuhe Liao, Jiawei Wang, Chengyu Li, Rui Shan, Haoran Yuan   +6 more
wiley   +1 more source