Preparative separation of arsenate from phosphate by IRA-400 (OH) for oxygen isotopic work.
Preparative separation of arsenate from phosphate by IRA-400 (OH) for oxygen isotopic work.
复制标题
使用 IRA-400 (OH) 制备分离砷酸盐和磷酸盐以进行氧同位素工作
DOI:
10.1016/j.talanta.2012.11.069
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发表时间:
2013
期刊:
影响因子:
6.1
通讯作者:
Khelashvilli
中科院分区:
文献类型:
--
作者:
Berner;Khelashvilli
The paper reports about a series of tests carried out to find out the optimal conditions for the preparative separation of arsenate and phosphate from natural waters, using the anion exchange resin Amberlite IRA-400 (OH). Freundlich isotherms have been constructed on basis of data obtained by stirring different amounts of resin (0.05–1.00g) with solutions containing 1mg/L As and 10mg/L P in form of arsenate and phosphate and the effect of pH and P/As ratio on adsorption was investigated. It was found that at these concentrations 0.5g of IRA-400 (OH) can adsorb quantitatively arsenate and phosphate within 1h. In a range of 3.6–11.1, pH seems to have no influence on the adsorption behavior of the resin, but at pH 1.5 the adsorption of both arsenate and phosphate drops to values close to zero. Experiments with solutions with P/As ratios in a range between 1 and 30 have shown that the concentration ratios have also little effect on adsorption. An efficient selective desorption of the anions could be achieved with 2mol/L HNO3or HCl, but the use of HCl is impracticable if the separation aims at precipitating arsenate for oxygen isotopic work. The reported adsorption/ desorption properties of the resin are supported also by data obtained by investigating the resin particles with a scanning electron microscope equipped with a fluorescence detection device.
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影响因子:
11.1
作者:
Allan H. Smith;Elena O Lingas;Mahfuzar Rahman
通讯作者:
Allan H. Smith;Elena O Lingas;Mahfuzar Rahman
DOI:
--
发表时间:
1961
期刊:
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DOI:
--
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2008
期刊:
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B. Nath;Z. Berner;D. Chatterjee;S. Mallik;D. Stüben
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D. Stüben
DOI:
--
发表时间:
1989
期刊:
影响因子:
--
作者:
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通讯作者:
Samad Yar Hussain
DOI:
--
发表时间:
1988
期刊:
影响因子:
--
作者:
S. Mustafa;Sakad Yar Hussain;H. Ali
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