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A new approach for simultaneous determination of Co(II), Ni(II), Cu(II) and Pd(II) using 2-thiophenaldehyde-3-thiosemicarbazone as reagent by solid phase microextraction–high performance liquid chromatography
Varinder Kaur, Jatinder Singh Aulakh, Ashok Kumar Malik ,
Department of Chemistry, Punjabi University, Patiala 147002, Punjab, India
Received 7 July 2007; revised 17 September 2007; Accepted 17 September 2007. Available online 21 September 2007.
http://www.sciencedirect.com/science...03267007015693
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