Year-end Sale % OFF 
Abstract
The spectrophotometric determination of trace amounts of zinc using derivatives of 2-(2-thiazolylazo)phenol has been studied. With zinc these compounds form blue or red-violet chelates, which are mostly extractable with chloroform to give solutions exhibiting an absorption maximum near 600 mμ. 1-(2-Thiazolylazo)-2-naphthol (NT) is recommended for the determination of zinc down to 0.1 μg Sandell's expression of the sensitivity is 0.0013 μg of zinc/cm 2. The interference of 29 cations and 11 anions has been examined in the presence and absence of ammonium citrate and demethylglyoxime. Mereury(II), manganese(II), cadmium(II), uranium(VI), EDTA, cyanide and pyrophosphate interfere, but mercury(II) and manganese(II) can be masked by the addition of thiosulphate and periodate, respectively. NT has been applied to the determination of zinc in thorium oxide and magnesium.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
