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Aqueous ruthenium detection by microwave-assisted laser-induced breakdown spectroscopy
被引:8
|作者:
Abu Kasim, Abu Farhan
[1
]
Wakil, M. A.
[1
]
Grant, Kevin
[1
]
Hearn, Milton
[1
]
Alwahabi, Zeyad T.
[1
]
机构:
[1] Univ Adelaide, Sch Chem Engn, Adelaide, SA 5005, Australia
关键词:
microwave-assisted laser induced breakdown spectroscopy;
ruthenium detection;
laser induced breakdown spectroscopy;
LIQUID;
CATALYST;
HYDROGENATION;
METATHESIS;
EFFICIENT;
SODIUM;
WATER;
D O I:
10.1088/2058-6272/ac6733
中图分类号:
O35 [流体力学];
O53 [等离子体物理学];
学科分类号:
070204 ;
080103 ;
080704 ;
摘要:
Aqueous ruthenium was detected in real-time under ambient conditions using microwave-assisted laser-induced breakdown spectroscopy (MW-LIBS). A 10 mJ laser energy and 750 W microwave power were directed at an open liquid jet sample of ruthenium. It was observed that, for liquid flow, the coupling efficiency between the microwave and the laser-induced plasma was limited to 43%. The improvement in the ruthenium's signal-to-noise ratio with MW-LIBS, with respect to LIBS, was 76-fold. Based on MW-LIBS, the limit of detection for aqueous ruthenium was determined to be 957 +/- 84 ppb.
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页数:8
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