Multicommutation-NIR determination of Hexythiazox in pesticide formulations.
A multicommutated flow-system was designed in order to increase analytical throughput and for controlling thermal effects on the NIR spectra for determination of Hexythiazox in pesticide formulations. An on-line standard addition was carried out showing the versatility and repeatability of multicommutation for the on-line mixing and dilution of solutions. Results obtained for commercial samples were statistically comparable with those obtained by an HPLC-reference method. Multicommutation-NIR allows the analysis of 52 samples per hour, in front of the 30 samples per hour analyzed by the NIR-batch procedure and the 7 samples per hour analyzed by HPLC-reference method.
Ventura-Gayete
Josep F
JF
Department of Analytical Chemistry, Universitat de València, Edifici Jeroni Muñoz, 50 Doctor Moliner St., 46100 Burjassot, València, Spain.
Armenta
Sergio
S
Garrigues
Salvador
S
Morales-Rubio
Angel
A
de la Guardia
Miguel
M