Analytical Sciences
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Sắp xếp:
Crystal Structure of 3,3,10,10-Tetramethyl-4,9-diazadodecane-2,11-dione-dioxime Hydrochloride
Analytical Sciences - Tập 15 - Trang 309-310 - 1999
Determination of Trace Levels of Selenium in Biological Samples by Graphite Furnace Atomic Absorption Spectrometry with a Solid Sampling Technique. Application of Pre-Ashing Concentration Technique
Analytical Sciences - Tập 13 - Trang 397-402 - 1997
A highly sensitive and convenient analytical method for the direct determination of selenium in biological samples by GF-AAS with a solid sampling technique using a graphite miniature cup was established by using a Pd solution containing 3 mol/l sulfuric acid or a Pd solution containing 0.1 mol/l nitric acid as a matrix modifier in order to prevent the volatilization of selenium. The determination...... hiện toàn bộ
Surface-analytical Studies on Environmental and Geochemical Surface Processes
Analytical Sciences - Tập 19 - Trang 487-497 - 2003
The surface chemical compositions of solid samples from environmental and geological sources can differ from the bulk or average compositions, because of changes caused by adsorption, dissolution, oxidation, etc. Accordingly, analytical information on surface layers is important for a better understanding of the environmental chemistry involving solid surfaces. The rapid development of surface-ana...... hiện toàn bộ
A Label-free mid Turn-on Fluorescence Strategy for DNA Detection with a Wide Detection Range Based on Exonuclease III-aided Target Recycling Amplification
Analytical Sciences - Tập 33 - Trang 9-11 - 2017
In the present work, a simple and sensitive turn-on fluorescence method for DNA detection was developed. It was explored based on the N-methyl mesoporphyrin IX (NMM)/G-quadruplex DNA system as a reporter and exonuclease III (Exo III)-aided target recycling amplification to ensure sensitivity. Our method showed an ultra-wide detection range from 10 fM to 100 nM with a low linear detection limit of ...... hiện toàn bộ
Ion-interaction Chromatography of Several Metallocyanide Complexes Stabilized by Adding Cyanide in a Neutral Mobile Phase
Analytical Sciences - - 2007
Evaluation of the Thermal Desorption–GC/MS Method for the Determination of Decabromodiphenyl Ether (DeBDE) in Order of a Few Hundred ppm Contained in a Certified Standard Polystyrene Sample
Analytical Sciences - Tập 24 - Trang 953-955 - 2008
Thermal desorption (TD)–GC/MS, recently developed for the determination of DeBDE in a polystyrene (PS) sample to an order of a few %, was evaluated in detail by using a certified standard PS sample containing 317 ppm of DeBDE. Not only the accuracy and precision of the results, but also the linearity of the working calibration curve were discussed in terms of the catalytic decomposition of DeBDE i...... hiện toàn bộ
Preparation of the Capillary-based Microchips for Solid Phase Extraction by Using the Monolithic Frits Prepared by UV-initiated Polymerization
Analytical Sciences - Tập 22 - Trang 1099-1104 - 2022
A microfluidic solid phase extraction (SPE) array for sample enrichment was prepared by a simple method, a hot embossing technique. Five fused-silica capillaries (250 |xm i.d., 380 |xm o.d.) were partly embedded parallel in a polymethyl methacrylate (PMMA) microchip to serve as the extraction channels. Within each of the channels, a 2-mm- long monolithic porous polymer was prepared by in-situ phot...... hiện toàn bộ
Visual Assay of Total Iron in Human Serum with Bathophenanthrolin Disulfonate-accommodated MCM-41
Analytical Sciences - Tập 32 Số 2 - Trang 241-244 - 2016
Determination of Rare-Earth Elements in a Limestone Geological Standard Reference Material by ICP-MS Following Solvent Extraction
Analytical Sciences - Tập 19 - Trang 441-445 - 2003
Rare-earth elements in a limestone geological standard (JLs-1) were determined by inductively coupled plasma mass spectroscopy (ICP-MS) using phosphoric acid 2-ethylhexyl ester solvent extraction, which had been established for seawater analysis. First, the limestone sample was divided into two fractions: acetic acid soluble (carbonate fraction) and insoluble (residue). A modification of the metho...... hiện toàn bộ
A Novel Coumarin-based Fluorescent Probe for Recognition of Copper(II) Ions and Its Application in Bioimaging
Analytical Sciences - Tập 37 - Trang 1081-1085 - 2021
Simple, accurate and real-time analytical methods are required for the detection of metal ions in a complex environment. In the present work, a fluorescent probe CPB based on coumarin was designed for recognizing Cu2+ ions. The fluorescence of CPB gradually quenched with increasing concentration of Cu2+ ions, due to the interactions between CPB and Cu2+ions. With the addition of Cu2+ ions, the emi...... hiện toàn bộ
Tổng số: 6,233
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