| Professional Committee of Rock and Mineral Testing Technology of the Geological Society of China, National Geological Experiment and Testing Center | Host |
| Citation: |
Zeng-huan WANG, Xu-nuo WANG, Yang-guang GU, Ying-na CHEN. Determination of 5 Heavy Metals in Seawater by Atomic Absorption Spectrometry with Solid-phase Extraction of Hydrophobic Chelate[J]. Rock and Mineral Analysis, 2017, 36(4): 360-366. doi: 10.15898/j.cnki.11-2131/td.201701200011
|
Determination of 5 Heavy Metals in Seawater by Atomic Absorption Spectrometry with Solid-phase Extraction of Hydrophobic Chelate
-
Abstract
The concentration and distribution of heavy metals in seawater are controlled by biogeochemical processes in the ocean. It is difficult to analyze accurately the concentrations of heavy metals in seawater due to the high salinity of seawater and low concentrations of heavy metals. Separation and preconcentration processes are needed. Conventional pretreatment methods include solvent extraction and coprecipitation. During solvent extraction, large volumes of seawater samples and organic solvents are used, complicating the procedure and endangering the environment and operator. The coprecipitation method can readily cause contamination of the analytes. In this study, the concentrations of 5 heavy metals, Cd, Cu, Ni, Pb and Zn in seawater were determined by Atomic Absorption Spectrometry after solid phase extraction of hydrophobic chelate with ammonium pyrrolidine dithiocarbamate and sodium diethyldithiocarbmate as chelating agents. The results show that there is a good correlation (R>0.999) between the absorbance and concentration of Cd, Cu, Ni, Pb and Zn. The linear ranges of the working curve for Cd and Zn were 0-4 μg/L and 0-100 μg/L, respectively, whereas the linear ranges for Pb, Cu, and Ni were 0-40 μg/L. The detection limits (μg/L) of Cd, Zn, Pb, Cu and Ni were 0.02, 2.6, 0.06, 0.18 and 0.3, respectively. The precision and recovery were less than 5% and 93.8%-104%, respectively. This method utilizes the hydrophobic interaction of solid phase extraction technology to realize the green sample pretreatment of seawater analysis. -
-
References
[1] Lagerstrom M E, Field M P, Seguret M, et al.Automated on-line flow-injection ICP-MS determination of trace metals (Mn, Fe, Co, Ni, Cu and Zn) in open ocean seawater:Application to the GEOTRACES program[J].Marine Chemistry, 2013, 155:71-80. doi: 10.1016/j.marchem.2013.06.001 [2] Mlakar M, Fiket Ž, Geček S, et al.Marine lake as in situ laboratory for studies of organic matter influence on speciation and distribution of trace metals[J].Continental Shelf Research, 2015, 103(1):1-11. [3] Anderson R F, Mawji E, Cutter G A, et al.GEOTRACES:Changing the way we explore ocean chemistry[J].Oceanography, 2014, 27(1):50-61. doi: 10.5670/oceanog [4] Li L, Liu J, Wang X, et al.Dissolved trace metal distributionsand Cu speciation in the Southern Bohai Sea, China[J].Marine Chemistry, 2015, 172:34-45. [5] Wang B S, Lee C P, Ho T Y.Trace metal determination in natural waters by automated solid phase extraction system and ICP-MS:The influence of low level Mg and Ca[J].Talanta, 2014, 128:337-344. doi: 10.1016/j.talanta.2014.04.077 [6] Minami T, Konagaya W, Zheng L, et al.An off-line automated preconcentration system with ethylenedia-minetriacetate chelating resin for the determination of trace metals in seawater by high-resolution inductively coupled plasma mass spectrometry[J].Analytica Chimica Acta, 2015, 854:183-190. doi: 10.1016/j.aca.2014.11.016 [7] O'sullivan J E, Watson R J, Butler E C V.An ICP-MS procedure to determine Cd, Co, Cu, Ni, Pb and Zn in oceanic waters using in-line flow-injection with solid-phase extraction for preconcentration[J].Talanta, 2013, 115:999-1010. doi: 10.1016/j.talanta.2013.06.054 [8] Sohrin Y, Bruland K W.Global status of trace elements in the ocean[J].Trends in Analytical Chemistry, 2011, 30(8):1291-1307. doi: 10.1016/j.trac.2011.03.006 [9] Tokalıoglu Ş, Papak A, Kartal Ş.Separation/preconcen-tration of trace Pb(Ⅱ) and Cd(Ⅱ) with 2-mercaptobenzothiazole impregnated amberlite XAD-1180 resin and their determination by flame atomic absorption spectrometry[J].Arabian Journal of Chemistry, 2017, 10(1):19-23. doi: 10.1016/j.arabjc.2013.04.017 [10] Lopez-Garcia I, Vicente-Martinez Y, Hernandez-Cordoba M.Cloud point extraction assisted by silver nanoparticles for the determination of traces of cadmium using electrothermal atomic absorption spectrometry[J].Journal of Analytical Atomic Spectrometry, 2015, 30(2):375-380. doi: 10.1039/C4JA00468J [11] Lemos V A, Maciel M V.An on-line preconcentration system for the determination of selenium in seawater samples[J].Analytical Methods, 2013, 5:4501-4505. doi: 10.1039/c3ay40272j [12] Ferreira S L C, Ferreira H S, Matos G D, et al.Critical evaluation of analytical procedures for the determination of lead in seawater[J].Applied Spectroscopy Reviews, 2012, 47(8):633-653. doi: 10.1080/05704928.2012.692103 [13] Butler O T, Cairns W R L, Cook J M, et al.2013 Atomic spectrometry update-A review of advances in environmental analysis[J].Journal of Analytical Atomic Spectrometry, 2014, 29(1):17-50. doi: 10.1039/C3JA90068A [14] Acar O, Kalfa O M, Yalcinkaya O, et al.Assessment of arsenic, chromium, copper and manganese determination in thermal spring waters by electrothermal atomic absorption spectrometry using various chemical modifiers[J].Analytical Methods, 2013, 5(3):748-754. doi: 10.1039/C2AY26291F [15] Søndergaard J, Asmund G, Larsen M M.Trace elements determination in seawater by ICP-MS with on-line preconcentration on a Chelex-100 column using a 'standard' instrument setup[J].MethodsX, 2015, 2:323-330. doi: 10.1016/j.mex.2015.06.003 [16] Veguería S F J, Godoy J M, de Campos R C, et al.Trace element determination in seawater by ICP-MS using online, offline and bath procedures of preconcentration and matrix elimination[J].Microchemical Journal, 2013, 106:121-128. doi: 10.1016/j.microc.2012.05.032 [17] Karandashev V K, Leikin A Y, KhvostikovV A, et al.Water analysis by inductively coupled plasma mass spectrometry[J].Inorganic Materials, 2016, 52(14):1391-1404. doi: 10.1134/S0020168516140053 [18] Wang L, Li H, Dong Y, et al.Determinationof trace elements in salt lake brines using inductively coupled plasma optical emission spectrometry after magnesium hydroxide precipitation[J].Analytical Methods, 2015, 7(19):8235-8240. doi: 10.1039/C5AY01971K [19] Sun S L, Li J.Determination of Zr, Nb, Mo, Sn, Hf, Ta, and W in seawater by N-benzoyl-N-phenylhydroxylamine extraction chromatographic resin and inductively coupled plasma-mass spectrometry[J].Microchemical Journal, 2015, 119:102-107. doi: 10.1016/j.microc.2014.11.006 [20] Clough R, Sela H, Milne A, et al.Uncertainty contributionsto the measurement of dissolved Co, Fe, Pb and V in seawater using flow injection with solid phase preconcentration and detection by collision/reaction cell-quadrupole ICP-MS[J].Talanta, 2015, 133:162-169. doi: 10.1016/j.talanta.2014.08.045 [21] Wang T, Sung Y J, Hsu C H, et al.Combining ammonium pyrrolidine dithiocarbamate/methyl isobutyl ketone microextraction in an inexpensive disposable pipette with laser ablation inductively coupled plasma mass spectrometry for the determination of Cd and Pd[J].Journal of the Chinese Chemical Society, 2014, 61(10):1154-1160. doi: 10.1002/jccs.201300441 [22] 王增焕, 王许诺.萃取分离-原子吸收光谱法测定海水中镉铜铅锌铬镍[J].冶金分析, 2014, 34(2):44-47. Wang Z H, Wang X N.Determination of cadmium, copper, lead, zinc, chromium and nickel in seawater by atomic absorption spectrometry after extraction separation[J].Metallurgical Analysis, 2014, 34(2):44-47. [23] Freslon N, Bayon G, Birot D, et al.Determination of rare earth elements and other trace elements (Y, Mn, Co, Cr) in seawater using Tm addition and Mg(OH)2 co-precipitation[J].Talanta, 2011, 85(1):582-587. doi: 10.1016/j.talanta.2011.04.023 [24] Milne A, Landing W, Bizimis M, et al.Determination of Mn, Fe, Co, Ni, Cu, Zn, Cd and Pb in seawater using high resolution magnetic sector inductively coupled mass spectrometry (HR-ICP-MS)[J].Analytica Chimica Acta, 2010, 665(2):200-207. doi: 10.1016/j.aca.2010.03.027 [25] 谢发之, 张峰君, 宣寒, 等.硫代乙酰胺键合硅胶在线选择性固相萃取火焰原子吸收测定环境样品中痕量铜[J].分析化学, 2012, 40(11):1720-1724. Xie F Z, Zhang F J, Xuan H, et al.Determination of trace copper in environmental samples by flame atomic absorption spectrometry after on-line selective preconcentration with thioacetamide modified silica gel mini-column[J].Chinese Journal of Analytical Chemistry, 2012, 40(11):1720-1724. [26] Yilmaz V, Kartal S.Determination of some trace metals by FAAS after solid-phase extraction with amberlite XAD-1180/TAN chelating resin[J].Analytical Sciences, 2012, 28(5):515-521. doi: 10.2116/analsci.28.515 [27] Tohidifar H, Moghimi A, Ayvazzadeh O, et al.Determina-tion of lead(Ⅱ) in milk by flame atomic absorption spectrometry after solid phase extraction[J].Asian Journal of Chemistry, 2013, 25(11):5981-5984. [28] Trujillo I S, Alonso E V, de Torres A G, et al.Develop-ment of a solid phase extraction method for the multielement determination of trace metals in natural waters including sea-water by FI-ICP-MS[J].Microchemical Journal, 2012, 101:87-94. doi: 10.1016/j.microc.2011.11.003 [29] Karadjova I.Determination of Cd, Co, Cr, Cu, Fe, Mn, Ni and Pb in natural waters, alkali and alkaline earth salts by electrothermal atomic absorption spectrometry after preconcentration by column solid phase extraction[J].Mikrochimica Acta, 1999, 130(3):185-190. doi: 10.1007/BF01244926 [30] Aghamohammadi M, Faraji M, Shahdousti P, et al.Trace determination of lead, chromium and cadmium in herbal medicines using ultrasound-assisted emulsification microextraction combined with graphite furnace atomic absorption spectrometry[J].Phytochemical Analysis, 2015, 26(3):209-214. doi: 10.1002/pca.v26.3 [31] Dasbasi T, Sacmaci S, Ulgen A, et al.A solid phaseextraction procedure for the determination of Cd(Ⅱ) and Pb(Ⅱ) ions in food and water samples by flame atomic absorption spectrometry[J].Food Chemistry, 2015, 174(C):591-596. [32] Giakisikli G, Anthemidis A N.Automated magnetic sorbent extractionbased on octadecylsilane functionalized maghemite magnetic particles in a sequential injection system coupled with electrothermal atomic absorption spectrometry for metaldetermination[J].Talanta, 2013, 110:229-235. [33] Krasnodębska-Ostręga B, Sadowska M, Piotrowska K, et al.Thallium(Ⅲ) determination in the baltic seawater samples by ICP-MS after preconcentration on SGX C18 modified with DDTC[J].Talanta, 2013, 112:73-79. doi: 10.1016/j.talanta.2013.03.059 [34] Carvalho R N C S, Brito G B, Korn M G A, et al.Multi-element determination of copper, iron, nickel, manganese, lead and zinc in environmental water samples by ICP-OES after solid phase extraction with a C18 cartridge loaded with 1-(2-pyridylazo)-2-naphthol[J].Analytical Methods, 2015, 7:8714-8719. doi: 10.1039/C5AY01929J [35] Golbedaghi R, Jafari S, Khajavi F, et al.Preconcentration and determination of Pb(Ⅱ), Cu(Ⅱ) and Cd(Ⅱ) ions on octadecyl silica membrane disk modified with 2-mercapto-benzoimidazole by flame atomic absorption spectrometry[J].Analytical Methods, 2012, 4:2318-2322. doi: 10.1039/c2ay25279a -
Access History
Figures(1)
Tables(3)
Export File
Citation
Zeng-huan WANG, Xu-nuo WANG, Yang-guang GU, Ying-na CHEN. Determination of 5 Heavy Metals in Seawater by Atomic Absorption Spectrometry with Solid-phase Extraction of Hydrophobic Chelate[J]. Rock and Mineral Analysis, 2017, 36(4): 360-366. doi: 10.15898/j.cnki.11-2131/td.201701200011
Format
Content
DownLoad:
- Figure 1. The effects of solution pH on the chelate formation