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Determination of gallium in water samples by atomic emission spectrometry based on solution cathode glow discharge
Li, Hongwei1,2; Zu, Wenchuan3; Liu, Fengkui4; Wang, Yu3; Yang, Yin3; Yang, Xiaotao3; Liu, Cong3
2019-02-01
Source PublicationSPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
ISSN0584-8547
Volume152Pages:25-29
AbstractA novel and rapid method was established for gallium determination by a home-made solution cathode glow discharger coupled with a portable fiber-optic spectrometer. Plasma was generated by the discharger and the emission line at 417 nm for gallium was observed with a portable fiber-optic spectrometer, whose spectral resolution was 1.1 nm based on the peak width of half height using a 10 mg/L gallium standard solution. The analytical conditions and instrumental parameters were optimized. The results showed acidity turned to be significantly influential for the emission intensity of the same sample. Therefore, acidity control of the testing solution was crucial. Under the optimized conditions, the limit of detection (LOD) for gallium was 0.47 mg/L calculated by 3SD(blank)/S. The stability was evaluated by the seven replicates of 10 mg/L gallium standard solution, and the relative standard deviation (RSD) was 2.1%. This method was applied to the analysis of gallium for river and waste water available in Beijing. The recoveries in the range of 92.0%-113.1% were acquired while the RSD values were below 7% (n = 5), which showed this method was feasible for gallium determination of real water samples. Moreover, only 1% HNO3 is demanded while the whole instrument is portable and works under ordinary atmospheric pressure so that the field test demand can be satisfied.
KeywordSolution cathode glow discharge Gallium measurement Water samples Portable fiber-optic spectrometer
DOI10.1016/j.sab.2018.12.004
WOS KeywordFLOWING LIQUID CATHODE ; ATMOSPHERIC-PRESSURE ; STRIPPING VOLTAMMETRY ; ELEMENTS ; TOXICITY
Language英语
WOS Research AreaSpectroscopy
WOS SubjectSpectroscopy
WOS IDWOS:000460120200004
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/90907
Collection科技支撑系统
Corresponding AuthorZu, Wenchuan; Wang, Yu
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Beijing Ctr Phys & Chem Anal, Beijing 100089, Peoples R China
4.Shanghai An Jie Environm Protect Sci & Technol Co, Shanghai 201906, Peoples R China
Recommended Citation
GB/T 7714
Li, Hongwei,Zu, Wenchuan,Liu, Fengkui,et al. Determination of gallium in water samples by atomic emission spectrometry based on solution cathode glow discharge[J]. SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY,2019,152:25-29.
APA Li, Hongwei.,Zu, Wenchuan.,Liu, Fengkui.,Wang, Yu.,Yang, Yin.,...&Liu, Cong.(2019).Determination of gallium in water samples by atomic emission spectrometry based on solution cathode glow discharge.SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY,152,25-29.
MLA Li, Hongwei,et al."Determination of gallium in water samples by atomic emission spectrometry based on solution cathode glow discharge".SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY 152(2019):25-29.
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