X-RAY FLUORESCENCE DETERMINATION OF MAJOR ROCK FORMING ELEMENTS IN SMALL SAMPLES 50 and 110 mg
نویسندگان
چکیده
منابع مشابه
Reliability of prompt gamma-ray analysis for the determination of Na and Mg in rock samples.
The reliability of neutron-induced prompt gamma-ray analysis (PGA) was examined for the determination of Na and Mg in geological and cosmochemical rock samples, because they tend to have been erroneously determined for such samples. JB-1 (basalt standard rock) and Allende (chondritic meteorite) powder samples were repeatedly analyzed by using thermal or cold neutron-guided beams of the JRR-3M r...
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ساخت الکترودهاِی اصلاح شده ِیکِی از چالشهاِی همِیشگِی در دانش شیمِی بوِیژه شیمِی تجزیه مِی باشد ،که با در نظر گرفتن سادگِی ساخت، کاربردی بودن و ارزان بودن روش مِی توان به باارزش بودن چنِین سنسورهاِی پِی برد.آنچه که در ادامه آورده شده به ساخت و کاربرد الکترودهاِی اصلاح شده با استفاده از نانو ذرات در اندازه گِیرِی ولتامترِی آهن وکادمِیم اشاره دارد. کار اول اختصاص دارد به ساخت الکترود خمِیر کربن اصلاح شده با لِیگاند داِ...
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Chalk cliffs in many countries, such as around the North Sea in Europe, are places of natural beauty but also under the constant threat of erosion. Collapse of chalk cliffs, which are often poorly consolidated (Figure 1), have cost lives and destroyed property and cultural heritage with a concerning frequency. Predicting collapse, however, is difficult and has had little success in the past. To...
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One of the advantages of X-ray fluorescence XRF analysis is its ability to perform accurate quantitative analysis over a wide range of elements with relative ease. In addition, its high sensitivity makes it ideal for trace elemental analysis. The establishment of analytical conditions for XRF is straightforward, including the determination of spectral line overlap correction factors. As with mo...
متن کاملDetermination of trace elements in sediment reference materials by monochromatic X-ray excitation X-ray fluorescence spectrometry.
A new reliable analytical method, "Monochromatic X-ray Excitation X-ray Fluorescence Spectrometry", has been proposed. For validating the method, trace elements in sediment certified reference materials were determined. In the method X-ray fluorescence spectra are measured for specimens and pure metals; in addition the mass-attenuation coefficients of the specimens for various X-ray wavelengths...
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ژورنال
عنوان ژورنال: Аналитика и контроль
سال: 2015
ISSN: 2073-1450
DOI: 10.15826/analitika.2015.19.2.009