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Spectrophotometric determination of kryptofix 2.2.2 using tcnq

  • Mu Yi He
  • , Li Quan Sun*
  • , Ai Qin Luo
  • *Corresponding author for this work
  • Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The interactions of the electron donors kryptofix (K-222) with 7,7,8,8-Tetracyanoquinodimethane (TCNQ) were studied spectrophotometrically in aceton/water at several temperatures. The UV-vis spectra of the formed molecular charge transfer (CT) complexes were recorded. The molecular structures of the CT-complexes were independent of the position of the amino group on the K-222 and were formulated as [(K-222)(TCNQ)]. A spectrophotometric method for determination of K-222 was developed and validated for the quantitative analysis of K-222 in the radiopharmaceuticals. With an internal standard, the limit of quantitation for K-222 was 2 ug/ml. This is so far the most facile method for the determination of K-222. Excellent linearity (RSQ = 0.9997) was obtained over the range of 2.0-31 ug/ml. Good precision and accuracy were also observed. The method is amenable to the validation of radiosynthetic methods.

Original languageEnglish
Title of host publicationFrontiers of Materials, Chemical and Metallurgical Technologies
Pages1156-1159
Number of pages4
Edition1
DOIs
Publication statusPublished - 2012
Event2012 International Conference on Chemical Engineering, Metallurgical Engineering and Metallic Materials, CMMM 2012 - KunMing, China
Duration: 12 Oct 201213 Oct 2012

Publication series

NameAdvanced Materials Research
Number1
Volume581-582
ISSN (Print)1022-6680

Conference

Conference2012 International Conference on Chemical Engineering, Metallurgical Engineering and Metallic Materials, CMMM 2012
Country/TerritoryChina
CityKunMing
Period12/10/1213/10/12

Keywords

  • Kryptofix 2.2.2
  • Spectrophotometry
  • Tcnq

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