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An ODS packing material was specially designed for CEC to achieve high efficiency. The size of the particles was approximately 3.2 μm based on scanning electron microscopy, and the average pore size of the particles was 1500 Å by mercury intrusion porosimetry measurement. The packing materials...
Novel, simple, rapid, highly sensitive, and direct determination of iodide and thiocyanate ions in seawater has been performed by liquid chromatography (LC) with UV detection at 220 nm. The separation was achieved on a C 30 column of conventional size (150 mm × 4.6 mm i.d.) modified with...
We have investigated the accuracy and reproducibility of DNA quantitation on the DNA Lab-Chip and the relationship of these to the size and concentration of the DNA fragments. We found that quantitation of small DNA fragments, i.e. less than 200 bp, suffers from high relative error which can be...
A rapid and accurate HPLC method has been developed for the simultaneous determination of nine major flavonoids, namely 3’-hydroxymelanettin, melanettin, stevenin, butein, isoliquiritigenin, dalbergin, 2,4-dihydroxy-5-methoxybenzophenone, pinocembrin, 4-methoxydalbergione in Dalbergia odorifera...
This study was performed to determine whether cell-membrane chromatography (CMC) can be used to reflect the selectivity and specificity of interactions between drugs and the muscarinic acetylcholine receptor (mAChR). A cell membrane stationary phase (CMSP) was prepared by immobilizing rat...
This study investigates the impact of peptide primary structure and the characteristics of two different types of immobilised hydrophobic ligands on the open tubular electro-chromatographic migration behaviour of a family of related synthetic peptide analogues. The results further document the...
A method based on liquid-liquid extraction (LLE) and automated large volume injection (LVI)-GC-MS analysis was developed for the trace determination of phthalate di-esters in water samples at sub-μg L −1 (ppb) levels. Strategies applied to reduce contamination include (i) careful selection of...
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