6533b82dfe1ef96bd1291d2d

RESEARCH PRODUCT

Fourier transform infrared spectrometric determination of Ziram.

Alessandra R CassellaMiguel De La GuardiaSalvador GarriguesReinaldo Calixto De Campos

subject

Detection limitchemistry.chemical_classificationAnalyteZiramInfraredAnalytical chemistryInfrared spectroscopyAnalytical ChemistryAbsorbancesymbols.namesakechemistry.chemical_compoundFourier transformchemistrysymbolsDithiocarbamate

description

A procedure has been developed for vapour-phase Fourier transform infrared determination of Ziram, a dithiocarbamate pesticide. The method is based on the evolution of CS(2), after decomposition of the dithiocarbamate with diluted H(2)SO(4) at 50 degrees C. The CS(2) evolved was swept by a carrier flow of nitrogen to a laboratory-made infrared gas cell of 39 mm pathlength and 490 mul volume. The signals were registered as a function of time. The area of peaks obtained from absorbance measurement in the wavenumber range between 1600 and 1450 cm(-1) were interpolated in a calibration line established from Ziram standards treated in the same way as samples. The method provided an absolute limit of detection of 0.055 mg, a variation coefficient of the order of 6% for an analyte mass of 50 mg, and an analysis time of 3.5 min.

yearjournalcountryeditionlanguage
2001-07-06Talanta
10.1016/s0039-9140(01)00366-6https://pubmed.ncbi.nlm.nih.gov/18968330