Ion-pair high-performance liquid chromatographic determination of dansylated aliphatic polyamines with fluorescence and ultraviolet detection

1985 ◽  
Vol 333 ◽  
pp. 220-224 ◽  
Author(s):  
Maj-Len Henriks-Eckerman ◽  
Terttu Laijoki
1983 ◽  
Vol 66 (3) ◽  
pp. 663-666
Author(s):  
Ijaz Ahmad

Abstract A simple and fast analytical method is described for the quantitative determination of low levels of paraquat residues in water. The method involves extraction and concentration of paraquat in water by using a C18 Sep-Pak cartridge followed by reverse phase high performance liquid chromatographic determination with ultraviolet detection at 257 nm. Recoveries of paraquat from spiked samples were above 93% with a coefficient of variation of 6.1%. The method can be used for water samples with paraquat concentrations as low as 0.05 ppm.


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