Spectroscopy and Spectral Analysis, Volume. 41, Issue 12, 3671(2021)
Study on the Analysis Total As in Bentonite With Microwave Plasma Atomic Emission Spectrometry
Figures & Tables(7)
Fig. 1. Multimode sample introduction system (MSIS) setup for hydride generation
Fig. 2. Emission spectra of As with different concentrations at 188.979 nm
Fig. 3. Effect of viewing position (a) and nebulizer gas flow (b) on signal intensity of As
Fig. 4. The fast linear interference correction (FLIC) model of As (188.979 nm)
Table 1. Optimization of MP-AES working condition
View tableView in ArticleTable 1. Optimization of MP-AES working condition
Wavelength Viewing
positionNebulizer gas flow
/(L·min-1)Spectral interferences Sensitivity
/(L·μg-1)As: 193.695 nm 10 0.45 Fe: 193.663 nm 62.5 As: 234.984 nm 10 0.45 Fe: 234.830 nm, Co: 234.737 nm; Be: 234.861 nm 58.2 As: 188.979 nm 10 0.45 Interference-free 46.9
Table 2. Results obtained for analytes in standard reference materials using MP-AES (μg·g-1,
n =6)View tableView in ArticleTable 2. Results obtained for analytes in standard reference materials using MP-AES (μg·g-1,
n =6)Sample Certified Determined Mean/
(μg·g-1)SD/
(μg·g-1)RSD/% Mean/
(μg·g-1)SD/
(μg·g-1)RSD/% GBW07104 2.10 0.50 23.8 2.33 0.05 2.14 GBW07107 1.40 0.40 28.6 1.64 0.03 1.83 GBW07109 6.27 0.45 7.18 6.51 0.15 2.30 GBW07110 5.96 0.89 14.9 5.72 0.16 2.80
Table 3. Analysis results of As content in bentonite samples (mg·kg-1,
n =6)View tableView in ArticleTable 3. Analysis results of As content in bentonite samples (mg·kg-1,
n =6)Sample ID MP-AES GB method Sample ID MP-AES GB method Sample ID MP-AES GB method 1 5.08±0.16 5.15±0.10 5 9.05±0.40 9.16±0.45 9 10.4±0.37 10.2±0.41 2 9.72±0.30 9.84±0.35 6 6.23±0.27 6.38±0.20 10 8.76±0.28 8.55±0.30 3 6.51±0.19 6.40±0.22 7 3.51±0.12 3.62±0.09 11 5.39±0.16 5.32±0.18 4 12.6±0.45 13.1±0.37 8 4.83±0.15 4.69±0.43 12 7.36±0.23 7.45±0.45
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Ai-yang LI, Liang FU. Study on the Analysis Total As in Bentonite With Microwave Plasma Atomic Emission Spectrometry[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3671
Paper Information
Category: Research Articles
Received: Dec. 1, 2020
Accepted: --
Published Online: Dec. 17, 2021
The Author Email: LI Ai-yang (layllp@163.com)
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