OPTIMIZATION OF THE EXPERIMENTAL CONDITIONS OF A NEW METHOD, BASED ONA QUARTZ-CRYSTAL MICROBALANCE, FOR THE DETERMINATION OF CYANIDE

Authors
GOMES MTSR SILVA AAF DUARTE AC OLIVEIRA JABP
Citation
Mtsr. Gomes et al., OPTIMIZATION OF THE EXPERIMENTAL CONDITIONS OF A NEW METHOD, BASED ONA QUARTZ-CRYSTAL MICROBALANCE, FOR THE DETERMINATION OF CYANIDE, Analyst, 122(10), 1997, pp. 1139-1141
Citations number
7
Categorie Soggetti
Chemistry Analytical
Journal title
Analyst → ACNP
ISSN journal
00032654
Volume
122
Issue
10
Year of publication
1997
Pages
1139 - 1141
Database
ISI
SICI code
0003-2654(1997)122:10<1139:OOTECO>2.0.ZU;2-T
Abstract
A new method based on a quartz crystal microbalance was developed for the determination of cyanide. As the sensitivity depends on pH, temper ature and nitrogen flow rate, a modified simplex was used to optimise these experimental parameters. Two different versions of the proposed method mere optimised. For the first version a sensitivity increase of 1.5 was observed after 27 runs, whereas for the second version a sens itivity increase of 1.7 was observed after 12 runs.