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Showing 1 to 12 of 1519 entries
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Electrochemical tuning of the activity and structure of a copper-cobalt micro-nano film on a gold electrode, and its application to the determination of glucose and of Chemical Oxygen Demand.

Mikrochimica acta

Wang J, Yao N, Li M, Hu J, Chen J, Hao Q, Wu K, Zhou Y.
PMID: 25620812
Mikrochim Acta. 2015;182:515-522. doi: 10.1007/s00604-014-1353-z. Epub 2014 Sep 17.

Micro-nano structured Cu-Co was in situ fabricated on the surface of a gold electrode via electrochemical reduction of CuCl

Assessment of matrix-dependent analyte stability and volatility during open-vessel sample dissolution for arsenic, cadmium, mercury and selenium.

Mikrochimica acta

Afonso DD, Arslan Z, Bednar AJ.
PMID: 20383291
Mikrochim Acta. 2009 Nov 01;167(1):53-59. doi: 10.1007/s00604-009-0218-3.

The effects of calcium and magnesium (as nitrates) and phosphorous (as hydrogen phosphate) were investigated on the stability of As, Cd, Hg, and Se during open-vessel dissolution in Teflon vessels. Samples of mainly inorganic and biological matrices were dissolved...

Using ICP-OES and SEM-EDX in biosorption studies.

Mikrochimica acta

Michalak I, Chojnacka K, Marycz K.
PMID: 21423317
Mikrochim Acta. 2011 Feb;172(1):65-74. doi: 10.1007/s00604-010-0468-0. Epub 2010 Sep 25.

We have compared the analytical results obtained by inductively coupled plasma optical emission spectroscopy (ICP-OES) and by scanning electron microscopy with an energy dispersive X-ray analytical system (SEM-EDX) in order to explore the mechanism of metal ions biosorption by...

Amperometric sensing of ascorbic acid by using a glassy carbon electrode modified with mesoporous carbon nanorods.

Mikrochimica acta

Li X, Liu J, Sun M, Sha T, Bo X, Zhou M.
PMID: 30242490
Mikrochim Acta. 2018 Sep 21;185(10):474. doi: 10.1007/s00604-018-3010-4.

Mesoporous carbon nanorods (MCNRs) were prepared from honey as the carbon source and by using crab (Brachyuran) shells as the hard template. The unique nanostructure of the MCNRs with their uniform mesoporous size, abundant defective sites and numerous oxygen-functional...

Sonication-assisted preparation of a nanocomposite consisting of reduced graphene oxide and CdSe quantum dots, and its application to simultaneous voltammetric determination of ascorbic acid, dopamine and uric acid.

Mikrochimica acta

Tavakolian E, Tashkhourian J.
PMID: 30215154
Mikrochim Acta. 2018 Sep 13;185(10):456. doi: 10.1007/s00604-018-2988-y.

Cadmium selenide quantum dots were capped with reduced graphene oxide that was modified with thioglycolic acid. The nanocomposite was prepared by 5-min sonication of a solution of graphene oxide, thioglycolic acid, and cadmium(II) nitrate and selenium powder in the...

Fluorometric determination of the activity of alkaline phosphatase based on the competitive binding of gold nanoparticles and pyrophosphate to CePO.

Mikrochimica acta

Xu AZ, Zhang L, Zeng HH, Liang RP, Qiu JD.
PMID: 29740708
Mikrochim Acta. 2018 May 09;185(6):288. doi: 10.1007/s00604-018-2827-1.

A fluorometric method is described for the determination of the activity of alkaline phosphatase (ALP). It relies on the competition between gold nanoparticles (AuNPs) and pyrophosphate (PPi) for the coordination sites on the surface of CePO

A nanocomposite consisting of graphene oxide, zeolite imidazolate framework 8, and a molecularly imprinted polymer for (multiple) fiber solid phase microextraction of sterol and steroid hormones prior to their quantitation by HPLC.

Mikrochimica acta

Mirzajani R, Kardani F, Ramezani Z.
PMID: 30707301
Mikrochim Acta. 2019 Feb 01;186(3):129. doi: 10.1007/s00604-018-3217-4.

A method is described for multiple monolithic fiber solid-phase microextraction of five sterol and steroid hormones from complex food samples. A composite was prepared from graphene oxide, a metal-organic framework (ZIF-8) and a molecularly imprinted polymers was deposited on...

Three-dimensional Pd/Pt bimetallic nanodendrites on a highly porous copper foam fiber for headspace solid-phase microextraction of BTEX prior to their quantification by GC-FID.

Mikrochimica acta

Ghani M, Masoum S, Ghoreishi SM.
PMID: 30377810
Mikrochim Acta. 2018 Oct 30;185(11):527. doi: 10.1007/s00604-018-3055-4.

The preparation of bimetallic Pd/Pt nanofoam for use in fiber based solid-phase microextraction (SPME) is described. First, a highly porous copper foam was prepared on the surface of an unbreakable copper wire by an electrochemical method. Then, the substrate...

Solid phase microextraction of polycyclic aromatic hydrocarbons by using an etched stainless-steel fiber coated with a covalent organic framework.

Mikrochimica acta

Yang X, Wang J, Wang W, Zhang S, Wang C, Zhou J, Wang Z.
PMID: 30707320
Mikrochim Acta. 2019 Feb 01;186(3):145. doi: 10.1007/s00604-019-3258-3.

A new covalent organic framework (COF) was synthesized by the amide coupling between 1,3,5-tris(4-aminophenyl)benzene and trimesoyl chloride at room temperature. The COF was applied as a steelĀ fiber coating for the solid phase microextraction of polycyclic aromatic hydrocarbons (PAHs)...

Covalent hyperbranched porous carbon nanospheres as a polymeric stationary phase for ion chromatography.

Mikrochimica acta

Zhao Q, Miao X, Yu J, Zhu Y.
PMID: 30707377
Mikrochim Acta. 2019 Feb 01;186(3):139. doi: 10.1007/s00604-019-3243-x.

This work presents a method for covalent quaternization of porous carbon nanospheres (PCNSs) and their application as anion exchanging stationary phase for ion chromatography. The PCNSs were covalently quaternized via the dehydration condensation between surface carboxyl groups and polyethyleneimine....

Fluorometric determination of Vibrio parahaemolyticus using an F.

Mikrochimica acta

Duan N, Wu S, Zhang H, Zou Y, Wang Z.
PMID: 29777309
Mikrochim Acta. 2018 May 18;185(6):304. doi: 10.1007/s00604-018-2795-5.

An F

A metal organic framework prepared from benzene-1,3,5-tricarboxylic acid and copper(II), and functionalized with various polysulfides as a sorbent for selective sorption of trace amounts of heavy metal ions.

Mikrochimica acta

Nozohour Yazdi M, Yamini Y, Asiabi H, Alizadeh A.
PMID: 30377841
Mikrochim Acta. 2018 Oct 30;185(11):525. doi: 10.1007/s00604-018-3059-0.

Novel composites were obtained via direct assembly of polysulfides (S

Showing 1 to 12 of 1519 entries