کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1210147 | 1493768 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adsorption behavior of hexafluorophosphate on selected bonded phases
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
The adsorption behavior of ammonium hexafluorophosphate was studied on four HPLC columns packed with adsorbents of different ability for dispersive interactions using frontal chromatography with LC/MS detection in negative ESI mode. Hexafluorophosphate (PF6−) adsorption isotherms were measured from acetonitrile/water and methanol/water mixtures. Increased PF6− adsorption with increased acetonitrile content was found between 0 and 15% of acetonitrile in the eluent. Further increase of the acetonitrile concentration leads to an exponential decrease of PF6− adsorption. Methanol, on the other hand, causes a steady decrease of PF6− adsorption with increased organic concentration in the mobile phase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1119, Issues 1–2, 30 June 2006, Pages 43–50
Journal: Journal of Chromatography A - Volume 1119, Issues 1–2, 30 June 2006, Pages 43–50
نویسندگان
I.L. Kazakevich, N.H. Snow,