Microchimica Acta

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A novel mimetic peroxidase catalyst by using magnetite-containing silica nanoparticles as carriers
Microchimica Acta - Tập 164 Số 1-2 - Trang 93-99 - 2009
Xiaolan Chen, Tingting Zhao, Jianli Zou
Bacillus sp. immobilized on Amberlite XAD-4 resin as a biosorbent for solid phase extraction of thorium prior to UV-vis spectrometry determination
Microchimica Acta - Tập 171 Số 3-4 - Trang 275-281 - 2010
Sadin Özdemir, Serkan Erdoğan, Ersin Kılınç
Influence of Pickling High Alloyed CrNi-Steels and Nickel Base Alloys with Citric Acid on the Composition of their Tarnish Oxides
Microchimica Acta - Tập 133 - Trang 289-293 - 2000
Gunther Pajonk, Henning Bubert
Extra-ordinary mechanical features and high corrosion resistance are essential qualities of CrNi-steels and nickel base alloys. The corrosion resistance of these materials fundamentally depends on their surface conditions. Tarnish colours and welding scale, formed during thermal treatment or joining, are removed by pickling components made of these alloys with sulphuric acid, nitric acid and hydr...... hiện toàn bộ
Colorimetric determination ofm-aminophenol
Microchimica Acta - Tập 57 Số 5 - Trang 921-924 - 1969
M. H. Hashmi, Abdus Subhan Adil, Ahmad Iftikhar Ajmal
Colorimetric and energy transfer based fluorometric turn-on method for determination of microRNA using silver nanoclusters and gold nanoparticles
Microchimica Acta - - 2018
Yasaman-Sadat Borghei, Morteza Hosseini, Mohammad Reza Ganjali, Huangxian Ju
The authors describe a dual (colorimetric and fluorometric) detection scheme for microRNA. The method is based on the use of fluorescent DNA-modified silver nanoclusters (DNA-AgNCs) and gold nanoparticles (AuNPs). The DNA-AgNCs were linked to AuNPs via the interaction of ssDNA-AgNC probes with AuNPs. This led to quenching of the fluorescence of the DNA-AgNCs (best measured at excitation/emission p...... hiện toàn bộ
Determination of melamine in food contact materials using an electrode modified with gold nanoparticles and reduced graphene oxide
Microchimica Acta - Tập 182 - Trang 1967-1975 - 2015
Ningning Chen, Yuxiao Cheng, Chen Li, Cuiling Zhang, Kai Zhao, Yuezhong Xian
We describe an electrochemical sensor for melamine based on a glassy carbon electrode (GCE) modified with reduced graphene oxide that was decorated with gold nanoparticles (AuNP/rGO). The AuNPs/rGO nanocomposite was synthesized by co-reduction of Au(III) and graphene oxide and characterized by transmission electron microscopy, Raman spectroscopy, X-ray diffraction and X-ray photoelectron spectrosc...... hiện toàn bộ
Enhanced and tunable oxygen carrier and amperometric sensor based on a glassy carbon electrode assembly of a hemoglobin-chitosan-Fe3O4 composite
Microchimica Acta - - 2017
Yuanhong Wang, Fang Zhang, Chunmei Yu, Yifeng Tu, Peng Miao, Hongchen Gu
XPS and SIMS Examination of Alumina Fibres Affected with Mg and MgLi Melt
Microchimica Acta - Tập 133 - Trang 29-34 - 2000
Stanislav Kúdela, Steffen Oswald, Stanislav Kúdela Jr., Stefan Baunack, Klaus Wetzig
Fibre/matrix interfaces in δ-Al2O3/Mg8Li and δ-Al2O3/Mg composites have been investigated using XPS and SIMS analysis of extracted δ-Al2O3 fibres in context with previous XRD observations. Results obtained indicate that in MgLi based composites lithium enters preferentially the interfacial redox reactions producing Li+ ions that occupy vacant cation positions in the defect δ-Al2O3 lattice which r...... hiện toàn bộ
On-Line Preconcentration and Determination of Cadmium, Cobalt and Nickel in Food Samples by Flame Atomic Absorption Spectrometry Using a New Functionalized Resin
Microchimica Acta - Tập 153 Số 3-4 - Trang 179-186 - 2006
Valfredo Azevedo Lemos, Ednilton Moreira Gama, Alisson Padilha de Lima
Rapid quenchofluorimetric determination of nickel(II) in some real and environmental samples
Microchimica Acta - - 1997
Biswajit Pal, Kamaljit Singh, Dipankar Chakraborty
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