acidic alumina
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2019 ◽  
Vol 8 (1) ◽  
pp. 38-41
Author(s):  
K. Shanmugalakshmi K. Shanmugalakshmi ◽  
M. A. Mary Thangam M. A. Mary Thangam ◽  
J. Ilavarasi Jeyamalar J. Ilavarasi Jeyamalar ◽  
Chellapandian Kannan Chellapandian Kannan

Author(s):  
Adang H G ◽  
Yono S ◽  
Widyastuti W

PENGARUH REGENERASI KOLOM ALUMINA ASAM TERHADAP RECOVERY DAN KUALITAS 99mTc HASIL EKSTRAKSI PELARUT MEK DARI 99Mo HASIL AKTIVASI NEUTRON. Melalui kerjasama antara PTRR-BATAN, Chiyoda dan JAEA Jepang telah dilakukan pemurnian 99mTc dari 99Mo hasil aktivasi neutron dengan menggunakan metode kromatografi kolom alumina asam terhadap hasil ekstraksi MEK (Metil Etil Keton). Pemurnian 99mTc dengan metode kolom alumina asam hanya dapat digunakan satu kali dan pemurnian berikutnya harus diganti dengan kolom baru. Hal ini dinilai kurang praktis dan juga memerlukan biaya yang mahal. Dalam penelitian ini dicoba penggunaan kolom alumina asam untuk pemurnian 99mTc lebih dari satu kali dengan melakukan proses regenerasi dengan cara melewatkan larutan HNO3 0,1N setiap kali proses pemurnian selesai. Penelitian ini bertujuan untuk mendapatkan larutan 99mTc yang dapat digunakan untuk penandaan kit radiofarmaka. Parameter yang diamati dalam penelitian ini adalah recovery, profil elusi, pH, kemurnian radiokimia dan kemurnian radionuklida (lolosan 99Mo). Hasil penelitian yang dilakukan selama 5 hari telah diperoleh pH ~5, recovery > 60 %, kemurnian radiokimia > 95 % dan lolosan 99Mo tidak terdeteksi. Dari hasil perlakuan terhadap kolom alumina asam dengan larutan HNO3 0,1 N disimpulkan bahwa kolom alumina asam tidak perlu diganti setiap hari.Kata kunci: 99mTc, 99Mo, MEK, kolom alumina asam, kemurnian radiokimia. Purification of 99mTc from 99Mo activation using acidic alumina column chromatography system from MEK (Methyl Ethyl Keton) extraction has been carried out through cooperation between PTRR - BATAN, Chiyoda and JAEA Japan. This method has a limitation that acidic alumina column for purification of 99mTc can be used only once, for the next purification acidic alumina column should be replaced with new column, so it is less practical and also requires high cost. This study aims to obtain a 99mTc solution can be use for labelling of a radiopharmaceutical kit. In this study, the used of acidic alumina column for 99mTc purification was tried more than once by regeneration using 0.1N HNO3 solution after purification process is completed. Parameters observed in this study are the percent recovery, elution profile, pH, radiochemical purity and radionuclida purity. The results of observational studies conducted over 5 days has been obtained pH ~ 5,% recovery > 60%, radiochemical purity of > 95% and 99Mo leakage not detected. The treatment of acidic alumina column with 0,1 N HNO3 solution concluded that acidic alumina column does not need to be replaced every day.Keywords: 99mTc, 99Mo, MEK, acidic alumina column, radiochemical purity.


Molecules ◽  
2016 ◽  
Vol 21 (6) ◽  
pp. 815 ◽  
Author(s):  
Giovanna Bosica ◽  
Roderick Abdilla
Keyword(s):  

2015 ◽  
Vol 69 (2) ◽  
Author(s):  
Jian Zhang ◽  
Tian-Qi Zhao ◽  
Yao Chen ◽  
Xiao-Dong Chen ◽  
Hai-Kun Chang ◽  
...  

AbstractA solvent-free microwave-assisted method for the synthesis of 2-substituted-4,5-di(2-furyl)-1H-imidazoles was developed. Imidazoles with moderate to good yields were produced by condensation of furil with aldehydes over acidic alumina impregnated with ammonium acetate, and they were characterized by FT-IR, HRMS,


2012 ◽  
Vol 90 (12) ◽  
pp. 2316-2324 ◽  
Author(s):  
Aparajita Goswami ◽  
Mihir K. Purkait

2012 ◽  
Vol 28 (3) ◽  
pp. 1141-1145
Author(s):  
G. BAGHERI MARANDI ◽  
A. POURJAVADI ◽  
H. HOSSEINZADEH
Keyword(s):  

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