Noise distribution in atomic absorption flame of chromium, copper and cobalt
نویسندگان
چکیده
منابع مشابه
Development of ultrasound-assisted emulsification microextraction for the determination of trace zinc and copper by flame atomic absorption spectrometry
In this work, we developed a method based on ultrasound-assisted emulsification microextraction (USAEME) for the determination of zinc and copper by flame atomic absorption spectrometry (FAAS). The method is based on the use of the organic solvent carbon tetrachloride (CCl4) as an extraction solvent. In order to obtain a high enrichment factor, the effect of different parameters affecting the c...
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Cosmetics should not contain more than 5 ppm of nickel, chromium or cobalt and, in order to minimize the risk of sensitization in very sensitive subjects, the target amount should be as low as 1 ppm. However, there are no published reports on the presence of these metals in toy make-up. This study analysed 52 toy make-ups using atomic absorption spectroscopy. More than 5 ppm of nickel was prese...
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18 19 20 21 22 23 24 Article history: Received 9 December 2013 Received in revised form 10 January 2014 Accepted 10 January 2014 Available online xxxx
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1978
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.27.62