T-cut slotted quartz tube-atom trap strategy for the on-line preconcentration of thallium in well water samples
Yükleniyor...
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, an on-line preconcentration system was developed for the quantitative determination of thallium in well water samples using hydrogen-assisted T-cut slotted quartz tube atom trapping (HA-T-SQT-AT) coupled to flame atomic absorption spectrometry (FAAS). The method is based on trapping the thallium atoms on the inner surface of the T-SQT for a short period using sample aspiration and lean flame conditions. Then, hydrogen gas as a reducing agent was released instantly to free the trapped analyte atoms, resulting in a sharp and narrow signal. The system analytical performance was enhanced by performing comprehensive optimization of several factors. The linear range and LOD/LOQ values of the optimized method were found to be 7.5–––200 ng/mL and 2.6/8.7 ng/mL, respectively. Accuracy/practicability of the presented method were verified using well water samples, and the percent recoveries calculated using the external calibration approach were all above 80%.
Açıklama
Anahtar Kelimeler
Thallium, Flame Atomic Absorption Spectrometry, Atom Trap, T-Shaped Slotted Quartz Tube, Well Water
Kaynak
Measurement
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
220
Sayı
Künye
Bombom, M., Zaman, B. T., Dalgıç Bozyiğit, G., Şaylan, M., Bayraktar, A., Arvas, B., Yolaçan, Ç., & Bakırdere, S. (2023). T-cut slotted quartz tube-atom trap strategy for the on-line preconcentration of thallium in well water samples. Measurement, 220, pp. 1-7. https://doi.org/10.1016/j.measurement.2023.113363
