Pre-concentration of ultra trace amounts of copper, zinc, cobalt and nickel in environmental water samples using modified C18 extraction disks and determination by inductively coupled plasma–optical emission spectrometry
2009 ◽
Vol 89
(5)
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pp. 319-329
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2006 ◽
Vol 84
(1-2)
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pp. 75-79
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2006 ◽
Vol 559
(1)
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pp. 113-119
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2011 ◽
Vol 12
(6)
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pp. 4009-4020
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2014 ◽
Vol 37
(16)
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pp. 2260-2267
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2010 ◽
Vol 178
(1-3)
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pp. 164-170
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2010 ◽
Vol 177
(1-4)
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pp. 115-125
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2007 ◽
Vol 4
(1)
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pp. 43-50
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