کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7826016 | 1503030 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adsorption of catecholamines from their aqueous solutions on hypercrosslinked polystyrene
ترجمه فارسی عنوان
جذب کاتلول آمین ها از محلول های آبی آنها در پلی استایرن بیش از حد برش خورده
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کلمات کلیدی
پلی استایرن فشرده کاتلولامین ها، ایزوترم جذب، سینتیک جذب،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Hypercrosslinked polystyrene Diapak P-3 was investigated as a high-capacity adsorbent for catecholamines (i.e. epinephrine, norepinephrine and dopamine). Morphological data for the sorbent were evaluated by scanning electron microscopy and nitrogen adsorption-desorption method. The results showed that Diapak P-3 possesses high microporous surface area of 1132â¯m2â¯gâ1 and a bimodal pore size distribution. Batch adsorption studies were performed to evaluate effect of pH and contact time on catecholamines uptake. The molecular forms of catecholamines are favorable for the adsorption, best results (maximum adsorption capacity) were found at pHâ¯7-9. The adsorption kinetic properties were obtained by application of the pseudo-first order kinetic model. From adsorption isotherms, the two-site Langmuir model showed the best fit and total adsorption capacity of 86, 68, and 52â¯mgâ¯gâ1 for dopamine, epinephrine, and norepinephrine, respectively. From the obtained results, the hypercrosslinked polystyrene Diapak P-3 has showed good adsorptive characteristic for catecholamines.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 131, October 2018, Pages 56-63
Journal: Reactive and Functional Polymers - Volume 131, October 2018, Pages 56-63
نویسندگان
Veronika V. Tolmacheva, Daniil I. Yarykin, Olga N. Serdiuk, Vladimir V. Apyari, Stanislava G. Dmitrienko, Yury A. Zolotov,