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Aluminium ion
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Alumosilicate materials zeolites are widely exploited due to porous structure and ion-exchange properties in several industrial, agriculture and veterinary applications. The mainly used zeolite for medical purposes in animals and humans is the natural zeolite clinoptilolite.
11p
vironald
15-12-2022
7
3
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The complexation activity of NADO with various metal ions in an ethanolic solution is specifically studied by means of fluorescent spectra. The NADO exhibits a significant fluorescence enhancement at 469 nm in presence of Al3 þ due to the formation of a complex.
8p
tamynhan4
06-09-2020
7
1
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Concentrations of three aluminium compounds significantly affected the mycelial extension of Trichoderma viride with low pH values growing on agar media, and the largest effect was recorded with aluminium chloride. Experiments in this work showed that there were significant relationships between Al concentration and pH in the Al inhibition of fungal activity on agar media.
9p
caplock2711
19-02-2019
13
0
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Zn(Al$_{1-x}$Cr$_x$)$_2$O$_4$ powders with Cr$^{3+}$ contents ranging from x = 0.005 to 0.3 have been synthesized by sol-gel method using the following precursors: zinc nitrate (Zn(NO$_3$)$_2\cdot6$H$_2$O), aluminium nitrate (Al(NO$_3$)$_3\cdot9$H$_2$O), chrome nitrate (Cr(NO$_3$)$_3\cdot9$H$_2$O), and citric acid. The effect of the Cr$^{3+}$ concentration on structural and optical properties of the synthesized samples has been studied.
6p
tuanlocmuido
19-12-2012
41
3
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Laser r n là laser mà môi tr ng ho t ch t là ch t r ắ ườ ạ ấ ấ ắn. Chất rắn này là đơn tinh thể, hoặc chất vô định hình. Có khoảng 200 chất rắn có khả năng dùng làm môi trường hoạt chất laser. Một số loại laser chất rắn thông dụng: YAG-Neodym: hoạt chất là Yttrium Aluminium Garnet (YAG) cộng thêm 2-5% Neodym, có bước sóng 1060nm thuộc phổ hồng ngoại gần. Có thể phát liên tục tới 100W hoặc phát xung với tần số 1000-10000Hz. Hồng ngọc (Rubi): hoạt chất là tinh thể Alluminium có gắn những ion chrom, có bước...
48p
ongiabi
08-12-2012
307
56
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