SEPARATION AND DETERMINATION OF CD IN BIOLOGICAL-MATERIALS BY CONTINUOUS-FLOW FLUID EXTRACTION COUPLED TO FLOW-INJECTION ICP-AES

Authors
ALONSO EV CORDERO MTS DETORRES AG PAVON JMC
Citation
Ev. Alonso et al., SEPARATION AND DETERMINATION OF CD IN BIOLOGICAL-MATERIALS BY CONTINUOUS-FLOW FLUID EXTRACTION COUPLED TO FLOW-INJECTION ICP-AES, Fresenius' journal of analytical chemistry, 351(8), 1995, pp. 802-804
Citations number
7
Categorie Soggetti
Chemistry Analytical
Journal title
Fresenius' journal of analytical chemistry → ACNP
ISSN journal
09370633
Volume
351
Issue
8
Year of publication
1995
Pages
802 - 804
Database
ISI
SICI code
0937-0633(1995)351:8<802:SADOCI>2.0.ZU;2-I
Abstract
FI-ICP-AES method for the determination of trace levels of cadmium in biological samples is described based on the complexation of the metal ion with 1,5-bis(di-2-pyridyl)methylene thiocarbohydrazide (DPTH) and its subsequent on-line extraction into isobutyl methyl ketone (IBMK). The detection limit for cadmium is 8.7 ng/ml and the calibration is l inear at least from 10 to 2080 ng/ml. The relative standard deviation for 7 replicate measurements is 3.4% for 100 ng/ml of cadmium. Results from the analysis of some certified biological reference materials ar e given.