کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10557167 | 968491 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Identification of oxidation states of metal oxides by MALDI-TOF MS
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Identification of oxidation states of metal oxides by MALDI-TOF MS Identification of oxidation states of metal oxides by MALDI-TOF MS](/preview/png/10557167.png)
چکیده انگلیسی
For the detection of inorganic species, we have developed chemical reaction laser desorption ionization mass spectrometry, and applied it to the analysis of metal oxides in different oxidation states. Metal oxide species insoluble in common organic solvents were finely grounded in a mortar and suspended in a solvent. The turbid suspension was placed on a sample holder on which a suitable chelating reagent had been previously spotted in a similar manner for sample preparation employed in the matrix-assisted laser desorption mass spectrometry (MALDI-MS). By using this method, the mass spectra of manganese (II and IV) oxides (MnO and MnO2), cobalt (II and III) oxides (CoO and Co2O3), and chromium (III and VI) oxides (Cr2O3 and CrO3) were successfully obtained. By adjusting the experimental conditions, such as ionization modes and chelating reagents, the non-identical mass spectra were obtained for the elements in the different oxidation state. Thus, the oxidation states could be identified clearly.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 81, Issue 2, October 2005, Pages 195-200
Journal: Microchemical Journal - Volume 81, Issue 2, October 2005, Pages 195-200
نویسندگان
Kozo Matsumoto, Aritaka Matsunami, Hiroyuki Oyama, Kuniyuki Kitagawa,