Simultaneous preconcentration of cadmium and chromium(III) in water samples by cloud point extraction and their determination by flame atomic absorption spectrometry
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作者:
Meng, Lifen
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Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650224, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650224, Yunnan Province, Peoples R China
Meng, Lifen
[1
]
Ning, Jinyan
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Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650224, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650224, Yunnan Province, Peoples R China
Ning, Jinyan
[1
]
Yang, Yaling
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Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650224, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650224, Yunnan Province, Peoples R China
Yang, Yaling
[1
]
机构:
[1] Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650224, Yunnan Province, Peoples R China
A sensitive and simple method for flame atomic absorption spectrometry determination of traces of cadmium and chromium(III) species in water samples after preconcentration by cloud point extraction has been developed. A novel complex agent of alizarin complexone with cadmium (Cd) and chromium (Cr(III)) was quantitatively extracted in surface primary alcohol ethoxylate-rich phase at 33 degrees C. The effects of experimental conditions including pH of sample solution, concentration of chelating agent and salt, equilibration temperature and time, and foreign ions were evaluated in order to enhance sensitivity of the method. Under optimal conditions, the low limit detections were 6.7 and 3.2 mu g/L, and the enrichment factors were 24 and 20 for Cd and Cr(III), respectively. The relative standard deviations were 3.8 and 2.5% for Cd and Cr(II), respectively (n = 11). The high recoveries of the spiked Cd and Cr(III) ions were obtained in the range of 90-116%. The proposed method has been successfully applied for the determination of Cd and Cr(III) in water samples.
机构:
Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China
Chen, Miao
Hu, Xujia
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Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China
Hu, Xujia
Tai, Zhigang
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Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China
Tai, Zhigang
Qin, Hui
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Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China
Qin, Hui
Tang, Huinan
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Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China
Tang, Huinan
Liu, Mousheng
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Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China
Liu, Mousheng
Yang, Yaling
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Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China
机构:
Bu Ali Sina Univ, Dept Analyt Chem, Fac Chem, Hamadan, IranBu Ali Sina Univ, Dept Analyt Chem, Fac Chem, Hamadan, Iran
Hashemi, Mandi
Daryanavard, Seyed Mosayeb
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Bu Ali Sina Univ, Dept Analyt Chem, Fac Chem, Hamadan, Iran
Univ Hormozgan, Fac Sci, Bandar Abbas, IranBu Ali Sina Univ, Dept Analyt Chem, Fac Chem, Hamadan, Iran
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Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China
Chen, Miao
Hu, Xujia
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Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China
Hu, Xujia
Tai, Zhigang
论文数: 0引用数: 0
h-index: 0
机构:
Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China
Tai, Zhigang
Qin, Hui
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机构:
Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China
Qin, Hui
Tang, Huinan
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h-index: 0
机构:
Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China
Tang, Huinan
Liu, Mousheng
论文数: 0引用数: 0
h-index: 0
机构:
Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China
Liu, Mousheng
Yang, Yaling
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h-index: 0
机构:
Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R ChinaKunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China
机构:
Bu Ali Sina Univ, Dept Analyt Chem, Fac Chem, Hamadan, IranBu Ali Sina Univ, Dept Analyt Chem, Fac Chem, Hamadan, Iran
Hashemi, Mandi
Daryanavard, Seyed Mosayeb
论文数: 0引用数: 0
h-index: 0
机构:
Bu Ali Sina Univ, Dept Analyt Chem, Fac Chem, Hamadan, Iran
Univ Hormozgan, Fac Sci, Bandar Abbas, IranBu Ali Sina Univ, Dept Analyt Chem, Fac Chem, Hamadan, Iran