光谱学与光谱分析 |
|
|
|
|
|
Determination of Trace Cobalt in Water Samples by Graphite Furnace Atomic Absorption Spectrometry after Cloud Point |
ZHANG Yuan, LUO Wen-hong*, LI Hui |
Shantou University Medical College Central Laboratory, Shantou 515041, China |
|
|
Abstract In buffer solution of citric acid monohydrate-disodium hydrogen phosphate at pH 5-7.5, cobalt water samples were chelated by 1-(2-pyridylazo)-2-naphthol(PAN) to form Co-PAN. After water-bath at 66 ℃ for two hours, Co-PAN is extracted into Triton X-100 nonionic surfactant phase and separated from bulk water. Extracted cobalt content was measured by graphite furnace atomic absorption spectrometry. The surfactant phase separated was treated with 0.5% HNO3-0.1% Pd(NO3)2 to remove background interference at 1 200 ℃ temperature. The pre-concentration of cobalt in water samples permitted the detection of 0.003 μg·L-1(10σ) with the enhancement factor of 100. The recoveries were 90.5%-106%. The proposed method was applied to the determination of cobalt in water samples and satisfactory results were obtained.
|
Received: 2003-11-16
Accepted: 2004-03-28
|
|
Corresponding Authors:
LUO Wen-hong
|
|
Cite this article: |
ZHANG Yuan,LUO Wen-hong,LI Hui. Determination of Trace Cobalt in Water Samples by Graphite Furnace Atomic Absorption Spectrometry after Cloud Point [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(04): 576-578.
|
|
|
|
URL: |
https://www.gpxygpfx.com/EN/Y2005/V25/I04/576 |
[1] HUA Lei,ZHU Hong-tao(华 蕾,朱洪涛). Journal of Hebei University(Science)(河北大学学报·自然科学版),1998, 18(1):61. [2] Goswami A, Singh A K. Anal. Bioanal. Chem., 2002, 374(3):554. [3] WANG Ai-xia, ZHANG Hong, ZHANG Zhuo-yong, Lü Jin-ju, CUI Xiao-yan(王爱霞,张 红,张卓勇,吕金菊,崔笑岩). Spectroscopy and Spectral Analysis(光谱学与光谱分析),2003,23(4):785. [4] Benkhedda K, Infante H G,Ivanova E et al. Fresenius J. Anal. Chem., 2000, 368(2-3): 288. [5] MA Yue,YAN Zhe,HUANG Jun-xiong(马 岳,阎 哲,黄骏雄). Progress in Chemistry(化学进展),2001,13(1):25.
|
[1] |
TAO Long-feng1, 2, SHI Miao2, XU Li-juan2, HAN Xiu-li1*, LIU Zhuo-jun2. Research on Spectral Characteristics and Coloration of Natural Cobalt Spinel[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(07): 2130-2134. |
[2] |
REN Jiang-bo1,2, WANG Fen-lian1,2*, HE Gao-wen1, 2, ZHANG Xin3, DENG Xi-guang1,2, YU Hong-xia4. μ-XRF Analysis and Data Mining of Deep-Sea Co-Rich Ferromanganese Nodules in Western Pacific[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(06): 1834-1840. |
[3] |
NIE Li-xing, CHANG Yan, DAI Zhong, MA Shuang-cheng*. A New Method for Determination of Polysorbate 80 in Shengmai Injection Based on Absorption Coefficient[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(01): 199-203. |
[4] |
CHEN Zhuo1, SU Yu-qing2, SONG Shan1, YAO Jun-xue1*. Determination of Manganese in Water Samples by Cloud Point Extraction with MN-CCA-CPC Flame Atomic Absorption Spectrometry[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(08): 2595-2599. |
[5] |
SUN Chuan-qiang, GONG Zi-shan, WANG Xiao-jun, YANG Ru, JIANG Xue-hui, WANG Yan*. Characterization and Determination of Gold Nanoparticles by SP-ICP-MS[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(07): 2267-2273. |
[6] |
Lü Meng1, HU Ying-tian1, GAO Ya1, WANG Xiao-ping2*. Novel Spectral COD Measurement Method Based on Identification of Water Samples[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(12): 3797-3802. |
[7] |
ZHU Hong-qiu, GONG Juan, LI Yong-gang*, CHEN Jun-ming. A Spectrophotometric Detecting Method of Trace Cobalt under High Concentrated Zinc Solution[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(12): 3882-3888. |
[8] |
GONG Hong-ling1, LIU Yan-hui2*, TANG Yan-lin2*, HU Lin2. Effects of Temperature on DNA Condensation Detected with Temperature-Changed Ultraviolet Spectrum Method[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(06): 1831-1837. |
[9] |
ZHAO You-quan1, LI Xia1, LIU Xiao1, DONG Peng-fei1, WANG Ling-li1, WANG Xian-quan2. Research on Water Quality Analysis Model with PCA Method and UV Absorption Spectra[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(11): 3592-3596. |
[10] |
ZHANG Xiu-qing, PENG Jun, LING Jian*, LIU Chao-juan, CAO Qiu-e, DING Zhong-tao . Fluorescence Resonance Energy Transfer Detection of Cobalt Ions by Silver Triangular Nanoplates and Rhodamine 6G[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 35(04): 951-955. |
[11] |
WANG Mei1, 2, LI Shan1, 2, ZHOU Jian-dong1, 2, XU Ying1, 2, LONG Jun-biao3, YANG Bing-yi1, 2* . Cloud Point Extraction for Determination of Mercury in Chinese Herbal Medicine by Hydride Generation Atomic Fluorescence Spectrometry with Optimization Using Box-Behnken Design [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(08): 2254-2258. |
[12] |
XUE Juan-qin, BI Qiang, ZHAO Xiao, MA Jing, YU Li-hua, ZHANG Jie . Quantum Chemical Study of Ultraviolet and Visible Spectra of Four Amino Cobalt Phthalocyanin[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(01): 141-144. |
[13] |
XU Xiao-fang1, GAO Yong-feng1 , Lü Liu1, CAO Xiang-xiang1, REN Nai-fei1, ZHOU Ming2 . Research on Several Times of Abruptly Changes in the Ultrafast Transient Reflectivity in Co Films[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(12): 3278-3281. |
[14] |
XUE Juan-qin1, ZHAO Xiao1, MA Jing1, LIU Yao1, WANG Cong1, LI Jing-xian2 . Quantum Chemical Study of Molecular Structure and Infrared Spectra of Four Amino Cobalt Phthalocyanine[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(04): 959-962. |
[15] |
SUN Bo-si, REN Ting, ZHAO Li-jiao*, ZHONG Ru-gang . Determination of Trace Lead in Environmental Water by Cloud Point Extraction-High Resolution Continuum Source Graphite Furnace Atomic Absorption Spectrometry[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(10): 2847-2852. |
|
|
|
|