In:
Electroanalysis, Wiley, Vol. 25, No. 7 ( 2013-07), p. 1628-1634
Abstract:
A voltammetric method was developed for zirconium determination as Zr(IV)‐cupferron‐oxalate‐diphenylguanidine complex based on adsorptive accumulation at the HMDE ( E peak =−0.95 V). The supporting electrolyte was a mixture of acetate/acetic acid (pH 4.6) and ammonium acetate (pH 5.7) solutions. E ads =−0.6 V (vs. Ag/AgCl), t ads =400 s, 10 mV s −1 scan rate, and DP mode were the main parameters. The linear range was 0.033 to 3.3×10 −9 mol L −1 , and the LOD and LOQ ( t ads =400 s) were 0.77 and 1.6×10 −11 mol L −1 , respectively. The method was adequate for seawater samples, although not sufficiently sensitive for surface waters.
Type of Medium:
Online Resource
ISSN:
1040-0397
,
1521-4109
DOI:
10.1002/elan.201300103
Language:
English
Publisher:
Wiley
Publication Date:
2013
detail.hit.zdb_id:
1483564-2
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