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45.718  Articles
1 of 4.573 pages  |  10  records  |  more records»
Swift heavy ions of Au at 120 MeV are irradiated at the interface of Si/Me/Si (Me=V,Fe,Co) and the behaviour of mixing examined wrt to different ion doses. The fluences were varied from 1x1013 ions/cm2 to 1x1014 ions/cm2 on the multilayers of Si/Me/Se (Me... see more

Mass spectrometry is essentially a technique for "weighing" molecules. Mass spectrometry is based upon the motion of a charged particle, called an ion, in an electric or magnetic field. Mass spectrometry relies on the formation of gas-phase ions (positive... see more

Semisynthesis of D6,7-Anhydroerythromycin-A was done by biomodification technique by addition of 0.2% INH into a culture fermentation of Saccharopolyspora erythraea ATCC 11635 in medium Hutchinson. The aim of this research is to studies of fragmentation p... see more

Ion Mobility Spectrometry (IMS) is a mass-selective technique in which the sample is vaporised, ionised, and with given initial velocity moved along a drift region towards a collector electrode. The drift times (milliseconds, ms) needed by the ions to rea... see more

The article is devoted to the problem of quality assurance of medicinal products, namely the determination of elemental impurity concentration compared to permitted daily exposures for and the correct choice analytical methods that are adequate to the for... see more

A heavy crude oil has been treated with deuterated alkylating reagents (CD3I and C2D5I) and directly analyzed without any prior fractionation and chromatographic separation by high-field Orbitrap Fourier Transform Mass Spectrometry (FTMS) and Fourier Tran... see more

X-ray free electron lasers (XFELs) providing ultrashort intense pulses of X-rays have proven to be excellent tools to investigate the dynamics of radiation-induced dissociation and charge redistribution in molecules and nanoparticles. Coincidence techniqu... see more

Cadmium is widely used in electroplating, batteries, plastics, and paints. Cadmium is a toxic element for humans, affecting mainly the kidneys and the skeleton. Adsorption is an easy, effective, and inexpensive method for removing metal ions in wastewater... see more

Ekstrak daun sirih (Piper betle L.) telah diketahui mengandung asam organik yang bersifat reduktor dan dapat mengalami oksidasi, yaitu asam askorbat dan fenol. Kandungan ion Ag(I) yang terdapat dalam limbah fotografi dapat dikurangi melalui reaksi reduksi... see more

1 of 4.573 pages  |  10  records  |  more records»