نتایج جستجو برای: ww measured with elemental analyzer

تعداد نتایج: 9289944  

1997
Yoko Kishi

Inductively coupled plasma mass spectrometry (ICP-MS) is an analytical technique that performs elemental analysis with excellent sensitivity and high sample throughput. The ICP-MS instrument employs a plasma (ICP) as the ionization source and a mass spectrometer (MS) analyzer to detect the ions produced. It can simultaneously measure most elements in the periodic table and determine analyte con...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - پژوهشکده ادبیات 1392

abstract the aim of the present study is to explore the impact of the cognitive reading strategy instruction on learners reading self-efficacy and their reading achievement. in order to fulfill this purpose, from 120 participants, 90 intermediate efl learners as an experimental group were chosen from three different educational settings namely, yazd university, yazd science and art un...

Journal: :Chimia 2022

Secondary Ion Mass Spectrometry (SIMS) extracts chemical, elemental, or isotopic information about a localized area of solid target by performing mass spectrometry on secondary ions sputtered from its surface the impact beam charged particles. This primary sputters ionized atoms and small molecules (as well as many neutral particles) upper few nanometers sample surface. The physical basis SIMS ...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2007
Yeon-Sik Bong Kwang-Sik Lee

Continuous flow analysis using an elemental analyzer interfaced with an isotope ratio mass spectrometer (EA-IRMS) is faster and requires much less material than conventional analytical methods. Although using an EA-IRMS is simple and fast, accurate calibration strongly depends on matching sample and reference peak heights by adjusting the sample weight. This paper describes a new modification f...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
jan nisar niamat ullah iftikhar ahmad awan khalid khan imtiaz ahamd

thermal decomposition of two coal samples obtained from top seam sibi (tss) and sore range quetta (srq) coal fields in their raw and acid washed forms were carried out in an open type tubular pyrolyzer coupled to a gas chromatograph with fid. elemental analyses were carried out with scanning electron microscope-energy dispersive x-rays (sem-edx) analyzer. effect of inherent mineral contents on ...

Journal: :Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada 2011
Kazuhiro Fujisaki Hideo Yokota Naomichi Furushiro Shintaro Komatani Sumito Ohzawa Yoshimichi Sato Daisuke Matsunaga Ryutaro Himeno Toshiro Higuchi Akitake Makinouchi

The elemental composition and microscopic-level shape of inclusions inside industrial materials are considered important factors in fracture analytical studies. In this work, a three-dimensional (3D) microscopic elemental analysis system based on a serial sectioning technique was developed to observe the internal structure of such materials. This 3D elemental mapping system included an X-ray fl...

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