Spectrophotometric Determination of Trace Amount of Copper with Trimethoxyphenylfluorone in Microemulsion after Preconcentration and Separation by Sulphydryl Dextran Gel
KANG Wei-jun1,2, LIANG Shu-xuan2, JIA Li-hui3, XU Li-qin1, ZHAO Yan1, SUN Han-wen2
Determination of Trace Cadmium in Environment Water Samples by Flame Atomic Absorption Spectrometry Using Flow Injection On-Line Preconcentration with Double Microcolumns