Simultaneous Analysis of Monovalent Anions and Cations with a Sub-Microliter Dead-Volume Flow-Through Potentiometric Detector for Ion Chromatography
Küçük Resim Yok
Tarih
2016
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
OXFORD UNIV PRESS INC
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
A microliter dead-volume flow-through cell as a potentiometric detector is described in this article for sensitive, selective and simultaneous detection of common monovalent anions and cations in single column ion chromatography for the first time. The detection cell consisted of less selective anion-and cation-selective composite membrane electrodes together with a solid-state composite matrix reference electrode. The simultaneous separation and sensitive detection of sodium (Na+), potassium (K+), ammonium (NH4+), chloride (Cl-) and nitrate (NO3-) in a single run was achieved by using 98% 1.5 mM MgSO4 and 2% acetonitrile eluent with a mixedbed ion-exchange separation column without suppressor column system. The separation and simultaneous detection of the anions and cations were completed in 6 min at the eluent flow-rate of 0.8 mL/min. Detection limits, at S/N = 3, were ranged from 0.2 to 1.0 mu M for the anions and 0.3 to 3.0 mu M for the cations, respectively. The developed method was successfully applied to the simultaneous determination of monovalent anions and cations in several environmental and biological samples.
Açıklama
Anahtar Kelimeler
Kaynak
JOURNAL OF CHROMATOGRAPHIC SCIENCE
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
54
Sayı
4
