搜索结果: 1-15 共查到“分析化学 absorption”相关记录17条 . 查询时间(0.234 秒)
Charge Resonance Effects on Electronic Absorption Lineshapes:Application to the Heterodimer Absorption of Bacterial Photosynthetic Reaction Centers
Charge Resonance Electronic Absorption Lineshapes Heterodimer Absorption Bacterial Photosynthetic Reaction Centers
2016/5/23
The electronic absorption spectrum of the homodimeric special pair in bacterial photosynthetic reaction centers is greatly modified when one of the bacteriochlorophylls is replaced by a bacteriopheoph...
Role of a Binary Metallic Modifier in the Determination of Cadmium in Graphite Furnace Atomic Absorption Spectrometry
Binary Metallic Modifier Determination of Cadmium Graphite
2010/9/14
In order to discuss the matrix modifier effect of palladium, iron, and a mixture of palladium and iron for the determination of cadmium in graphite-furnace atomic absorption spectrometry (GF-AAS), we ...
Electrochemical Modification of a Graphite Platform for a Solid Sampling Electrothermal Atomic Absorption Spectrometry of Mercury
Electrochemical Modification Graphite Platform Solid Sampling Electrothermal
2010/9/17
An electrodeposited palladium and iridium/gold mixture has been investigated as a chemical modifier for mercury determination in environmental samples by solid sampling electrothermal atomic absorptio...
Flame Atomic Absorption Spectrometry Determination of Trace Amounts of Nickel Ions in Water Samples after Ligandless Ultrasound-assisted Emulsification Microextraction
Flame Atomic Absorption Spectrometry Determination Trace Amounts Nickel Ions
2010/9/17
In the present work, a new ligandless-ultrasound-assisted emulsification microextraction (LL-USAEME) method was developed for preconcentration trace amounts of nickel as a prior step to its determinat...
Quantitative Estimation Methods for Concentrations and Layer Thicknesses of Elements Using Edge-jump Ratios of X-ray Absorption Spectra
Quantitative Estimation Methods Concentrations Layer Thicknesses Elements Using Edge-jump Ratios of X-ray Absorption Spectra
2010/9/17
This work concerns the development of quantitative estimation techniques using the K edge-jump ratio of X-ray absorption spectrum recorded through total-electron-yield measurements. The three methods ...
Highly Sensitive Determination of Cadmium and Lead in Leached Solutions from Ceramic Ware by Graphite Furnace Atomic Absorption Spectrometry Coupled with Sequential Injection-based Solid Phase Extraction Method
Cadmium Ceramic Ware Graphite Furnace Atomic Absorption Spectrometry
2010/9/20
A fully automated pretreatment system based on sequential injection solid-phase extraction (SPE) coupled to a graphite furnace atomic absorption spectrometer (Auto-Pret-GFAAS system) was developed to...
Flame Atomic Absorption Spectrometric Determination of Palladium in Aqueous Samples after Preconcentration Using Nanoparticles of γ-Alumina Functionalized with Pyridine Groups
Flame Atomic Absorption Spectrometric Palladium Aqueous Samples Preconcentration Nanoparticles of γ-Alumina Functionalized Pyridine Groups
2010/9/20
A new solid phase, nanoparticles of alumina functionalized with pyridine groups, was synthesized and used for extraction and preconcentartion of palladium(II) ions from some water samples. The effects...
Theoretical Study on Sulfur Dioxide Absorption with Citrate Solution
citrate solution,absorption,sulfur dioxide, theoretical analysis
2009/11/13
The citrate absorption of SO2 is currently one of the most successful and economic methods to harness sulfur dioxide pollution. In order to theoretically elucidate the mechanism of SO2 absorption by c...
Preconcentration and Determination of Trace Amounts of Heavy Metals in Water Samples Using Membrane Disk and Flame Atomic Absorption Spectrometry
preconcentration atomic absorption spectrometry
2007/12/20
摘要 A fast and simple method for preconcentration of Ni2＋, Cd2＋, Pb2＋, Zn2＋, Cu2＋ and Co2＋ from natural water samples was developed. The metal ions were complexed with sodium diethyldithiocarbamate (Na...
Determination of Pb(II) and Cu(II) by Electrothermal Atomic Absorption Spectrometry after Preconcentration by a Schiff Base Adsorbed on Surfactant Coated Alumina
determination of lead and copper preconcentration
2007/12/20
摘要 1,2-Bis(salicylidenamino)ethane loaded onto sodium dodecyl sulfate-coated alumina was used as a new chelating sorbent for the preconcentration of traces of Pb(II) and Cu(II) prior to atomic absorpt...
Determination of Copper by Flame Atomic Absorption Spectrometry after Preconcentration with Activated Carbon Impregnated with a New Schiff Base
preconcentration determination copper
2007/12/20
摘要 A simple and reliable method for theextraction and determination of trace amounts of copper(II) ions using activatedcarbon (AC) impregnated by a new Schiff base 5-[(4-heptyloxyphenyl)azo]-N-(4-prop...
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...
Flame Atomic Absorption Spectrometric Determination of Manganese in Alloys after Preconcentration onto Amberlite XAD-4 Loaded with Saccharomyces carlsbergensis
Manganese preconcentration flame atomic absorption spectrometry alloy Saccharomyces carlsbergensis
2010/4/21
A sensitive and simple enrichment method using microorganisms as an adsorbent is described for the determination of trace manganese in alloys. Manganese was determined by flame atomic absorption spect...
Column Preconcentration/Separation and Atomic Absorption Spectrometric Determinations of Some Heavy Metals in Table Salt Samples Using Amberlite XAD-1180
Determination Preconcentration Table Salt Samples AAS Amberlite XAD-1180
2010/4/21
A simple and sensitive solid phase extraction procedure on Amberlite XAD-1180 resin is presented for the determination of chromium, cobalt, manganese and nickel at trace levels by atomic absorption sp...
Determination of Zinc in Aerosol Samples by Discrete Nebulization Flame Atomic Absorption Spectrometry
iron minerals trace elements lead cobalt nickel chromium zinc manganese determination atomic absorption spectrometry
2010/4/22
Determination of Zinc in Aerosol Samples by Discrete Nebulization Flame Atomic Absorption Spectrometry.