Research Article

OPCW Proficiency Test: A Practical Approach Also for Interlaboratory Test on Detection and Identification of Pesticides in Environmental Matrices

Figure 19

(a) Mass spectrum of compound VII from the organic extract sample and (b) MS of O,O-dipropyl N-methyl-N′-isopropylphosphoramidate VII, the synthesized reference chemical.
542357.fig.0019a
(a)
542357.fig.0019b
(b)