Sequential solid phase extraction protocol followed by liquid chromatography–atmospheric pressure chemical ionization–mass spectrometry for the trace determination of non ionic polyethoxylated surfactants in tannery wastewaters
1999 ◽
Vol 857
(1-2)
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pp. 369
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1999 ◽
Vol 844
(1-2)
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pp. 87-95
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2003 ◽
Vol 1020
(2)
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pp. 241-250
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2005 ◽
Vol 1076
(1-2)
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pp. 90-96
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2002 ◽
Vol 28
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pp. 521-528
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1997 ◽
Vol 703
(1-2)
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pp. 115-127
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