搜索结果: 121-135 共查到“化学 determination”相关记录213条 . 查询时间(0.148 秒)
期刊信息
篇名
Determination of chlorogenic acid and rutin in cigarettes by an improved capillary electrophoresis indirect chemiluminescence system
语种
英文
撰写或编译
撰写
作者
Jiang H L,He Y Z*,Zhao H Z,Hu Y Y
第一作者单位
...
FFT-Adsorptive Voltammetric Technique for Pico-Level Determination of Tetracycline in Capsules at an Au Microelectrode in Flowing Solutions
Tetracycline ultramicroelectrode continuous cyclic voltammetry flow injection analysis fast Fourier transformation
2010/4/16
This study illustrates a novel method for fast monitoring of tetracycline in flow-injection systems. The fast Fourier transformation, along with continuous cyclic voltammetry (FFTCV) at a gold microel...
Performance Comparison between Monolithic C18 and Conventional C18 Particle-Packed Columns in the Liquid Chromatographic Determination of Propranolol HCl
Monolithic columns Chromolith Performance propranolol hydrochloride performance validation degradation products method transfer batch reproducibility
2010/4/19
Performance Comparison between Monolithic C18 and Conventional C18 Particle-Packed Columns in the Liquid Chromatographic Determination of Propranolol HCl.
Trace Element Determination in Brassica oleraceae var. acephale by Differential Pulse Polarography
Cabbage cole trace elements determination differential pulse polarography
2010/4/19
A fast and simple differential pulse polarographic (DPP) method for the determination of trace elements in a certain form of cabbage is described. This vegetable is commonly used as food in Turkey, es...
First- and Second-Derivative Spectrophotometry for Simultaneous Determination of Copper and Cobalt by 1-(2-Pyridylazo)-2-naphthol in Tween 80 Micellar Solutions
Copper Cobalt PAN Simultaneous Derivative spectrophotometry
2010/4/19
1-(2-Pyridylazo)-2-naphthol (PAN) has been used for the simultaneous determination of copper and cobalt at trace levels. PAN at pH 1.89 forms red and green complexes with copper and cobalt, respective...
Extraction-Spectrophotometric Determination of Trace Amounts of Barium and Strontium by 18-Crown-6 and Rose Bengal Using Partial Least Squares
Partial least squares Extraction-spectrophotometric determination Barium Strontium
2010/4/19
Partial least squares modeling is a powerful multivariate statistical tool applied to extraction-spectrophotometric simultaneous determination of mixtures of barium and strontium. The method is based ...
The Electroanalytical Determination of Sodium Borohydride Using a Gold Electrode
Borohydride square wave voltammetry electrolysis
2010/4/20
It was shown that square wave voltammetry, a technique with a much lower detection limit, could be successfully used in the detection of borohydride formed in alkaline medium. A Au electrode was found...
Development of Gold Porous Plate Electrode and Examination of Its Performance for Iodine Determination
Gold porous plate electrode determination of iodine voltammetry
2010/4/20
A novel procedure for the construction of a home-made gold porous plate electrode is described. A plate of silver and gold alloy was treated with nitric acid or alternatively by anodic oxidation to r...
Catalytic Spectrophotometric Determination of Chromium
Chromium catalytic determination sulfanilic acid hydrogen peroxide tap and industrial waters
2010/4/20
The catalytic effect of chromium(III) and chromium(VI) on the oxidation of sulfanilic acid by hydrogen peroxide was studied. The reaction was followed spectrophotometrically by measuring the absorbanc...
Anodic Stripping Voltammetric Behavior of Mercury in Chloride Medium and its Determination at a Gold Film Electrode
Mercury determination gold film electrode anodic stripping voltammetry heamodialysis solution
2010/4/20
The electrochemical behavior of aqueous Hg(II) ions at a gold film electrode is described. The effects of supporting electrolyte and halide ions on the anodic stripping voltammetric behavior of Hg(II)...
Determination of Cadmium, Copper, Iron, Manganese, Lead and Zinc in Lichens and Botanic Samples by Electrothermal and Flame Atomic Absorption Spectrometry
Lichen ETAAS Ni + Pd + TA Copper Iron
2010/4/20
Within the framework of the International Atomic Energy Agency (IAEA) Analytical Quality Control Service (AQCS) Chemistry Unit a research program was initiated for the identification of trace elements...
A Novel Method for the Spectrophotometric Determination of Thallium Using Methiomeprazine Hydrochloride
Methiomeprazine hydrochloride (MMH) thallium(III) determination spectrophotometry
2010/4/20
A new, simple, sensitive, and rapid spectrophotometric method is proposed for the determination of trace amounts of thallium(III). The method is based on the oxidation of methiomeprazine hydrochloride...
The Atomic Absorption Spectrophotometric Method for Indirect Determination of Nimodipine in Tablets
Aromatic nitro compounds Cadmium ion Pharmaceutical analysis Indirect determination
2010/4/20
A simple indirect atomic absorption spectrophotometric (AAS) method is described for the analysis of nimodipine in tablet formulations. The method is based on the reduction of the antihypertensive dru...
Determination of Fumonisins B 1 and B 2 in Beer
beer fumonisin B 1 fumonisin B 2 immunoaffinity clean-up HPLC
2014/3/17
The aim of this study was to investigate the contamination of beer of Slovak origin with fumonisins. A suitable
analytical procedure was suggested – the limit of detection at the level close to 1 μg...
Determination of Trace Copper by FAAS after Solid Phase Extraction and Preconcentration onto Amberlite XAD-2 Loaded with Nitroso-R Salt
Amberlite XAD-2 flame atomic absorption spectrometry solid phase extraction of copper standard alloys and biological samples
2010/4/20
A procedure for the separation and preconcentration of trace amounts of copper is proposed. It is based on the adsorption of copper(II) ions solution onto a column of Amberlite XAD-2 resin loaded with...