6533b7dcfe1ef96bd1272c25

RESEARCH PRODUCT

Spectrophotometric determination of mercury(II) and silver(I) with copper(II) and diethyldithiocarbamate in the presence of triton X-100

C.mongay FernándezM.c.martinez VayaM.c.garcía Alvarez-coqueR. M. Villanueva CamañasG.ramis Ramos

subject

Detection limitReproducibilityAnalytical chemistrychemistry.chemical_elementCopperAnalytical ChemistryMercury (element)Absorbancechemistry.chemical_compoundPulmonary surfactantchemistryTriton X-100SelectivityNuclear chemistry

description

Abstract Procedures for the determination of mercury and silver by displacement of diethyldithiocarbamate (DDTC) from its copper complex in the presence of 1% Triton X-100, and measurement of the decrease in the Cu(DDTC) 2 absorbance, are described. The use of the surfactant avoids the need for an extraction step. Reproducibility within 1% and detection limits of 0.25 ppm Hg(II) and 0.45 ppm Ag(I) have been obtained, and linear calibration ranges up to 13 ppm Hg(II) and 15 ppm Ag(I). In the presence of 0.1 M EDTA very good selectivity is achieved.

yearjournalcountryeditionlanguage
1986-08-01Talanta
https://doi.org/10.1016/0039-9140(86)80162-x