电热板消解不同酸体系对土壤中6种重金属元素测定的影响研究
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摘要
为研究不同敞开酸溶消解法对土壤样品中重金属元素测定的影响,分别采用HNO_3-HF-HClO_4、HClHNO_3、H_2SO_4-HNO_33种敞开酸溶消解方法对标准土壤样品GBW07405(GSS-5)进行前处理,使用电感耦合等离子体质谱仪(ICP-MS)测定了3种敞开酸溶消解法前处理标准土壤样品中6种重金属元素(In、Be、Ni、Cd、Pb、Cu)的含量,进而探究出酸溶消解法前处理土壤样品的最优消解方法。结果表明:HNO_3-HF-HClO_4消解法对标准土壤样品的消解最彻底且消解液澄清,测定结果的准确度和精密度最高,更适用于土壤样品的前处理。进一步探究了HNO_3-HF-HClO_4消解法操作过程中加酸量的误差和消解温度对标准土壤样品中6种重金属元素含量测定结果的影响,结果表明:加酸量误差对HNO_3-HF-HClO_4消解法前处理标准土壤样品中重金属元素含量的测定结果没有影响;土壤样品初期消解温度以120℃为宜。
In order to study the effects of different open acid dissolution on the determination of heavy metal elements in soil samples,this paper applies three digestion methods of open acid solution in the pretreatment of standard soil sample GBW07405(GSS-5):HNO_3-HF-HClO_4,HCl-HNO_3 and H_2SO_4-HNO_3.The paper applies Inductively Coupled Plasma Mass Spectrometry(ICP-MS)to measuring six heavy metal elements(In,Be,Ni,Cd,Pb and Cu)in three open acid dissolution,and explores the best solution for acid digestion.The results show that the HNO_3-HF-HClO_4 method is the most thorough digestion method for soil samples and the digestion solution is clarified,the accuracy and precision of soil samples are the highest,and the HNO_3-HF-HClO_4 is more suitable for pretreatment of soil samples.The paper further explores the error of adding acid and the influence of digestion temperature in the process of HNO_3-HF-HClO_4 digestion.The results show that the determination results of the standard soil samples pretreated by HNO_3-HF-HClO_4 digestion are not affected by the error of acid addition,and the initial digestion temperature at 120℃is appropriate.
In order to study the effects of different open acid dissolution on the determination of heavy metal elements in soil samples,this paper applies three digestion methods of open acid solution in the pretreatment of standard soil sample GBW07405(GSS-5):HNO_3-HF-HClO_4,HCl-HNO_3 and H_2SO_4-HNO_3.The paper applies Inductively Coupled Plasma Mass Spectrometry(ICP-MS)to measuring six heavy metal elements(In,Be,Ni,Cd,Pb and Cu)in three open acid dissolution,and explores the best solution for acid digestion.The results show that the HNO_3-HF-HClO_4 method is the most thorough digestion method for soil samples and the digestion solution is clarified,the accuracy and precision of soil samples are the highest,and the HNO_3-HF-HClO_4 is more suitable for pretreatment of soil samples.The paper further explores the error of adding acid and the influence of digestion temperature in the process of HNO_3-HF-HClO_4 digestion.The results show that the determination results of the standard soil samples pretreated by HNO_3-HF-HClO_4 digestion are not affected by the error of acid addition,and the initial digestion temperature at 120℃is appropriate.
引文
[1]李丽杰.土壤重金属分析前处理方法比较[J].乡村科技,2017(12):72-73.
[2]蔡立梅,马瑾,周永章,等.东莞市农业土壤重金属的空间分布特征及来源解析[J].环境科学,2008(12):3496-3502.
[3]罗娇赢,张思冲,辛蕊,等.哈尔滨市西郊菜地土壤重金属污染评价[J].中国农学通报,2009(20):279-282.
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[5]李玲.土壤污染特点现状以及监测技术浅析[J].黑龙江科技信息,2013(23):34.
[6]Freitas R,Pinto L,Sampaio M,et al.Effects of depuration on the element concentration in bivalves:Comparison between sympatric Ruditapes decussatus and Ruditapes philippinarum[J].Estuarine Coastal&Shelf Science,2012,110(10):43-53.
[7]张芙蕖,蒋晶晶.三种土壤消解方法的对比研究[J].环境科学与管理,2008(3):132-134.
[8]Zhang S,Cao X.Detection of heavy metal in soil with different digestion methods[J].Environmental Science&Technology,2004(s1):49-51.
[9]Wang X,Zhang Y,Lin N.Determination of heavy metal ions in soil by ICP-MS with microwave digestion[J].Chinese Journal of Spectroscopy Laboratory,2008,25(6):1183-1187.
[10]Tuzen M,Saygi K,Soylak M.Solid phase extraction of heavy metal ions in environmental samples on multiwalled carbon nanotubes[J].Journal of Hazardous Materials,2002,152(2):632-639.
[11]刘传娟,刘凤枝,蔡彦明,等.不同前处理方法-ICP-MS测定土壤中的重金属[J].分析试验室,2009(s1):91-94.
[12]Long J H,Tan J,Wu Y J,et al.A comparative study on the detection of heavy metal in soil with different digestion methods[J].Environmental Monitoring in China,2013,29(1):123-126.
[13]Zhao L,Song L H.Effects of different soil digestion methods on determination of heavy metals in standard samples[J].Shanxi Science&Technology,2017,32(4):41-43.
[14]龙加洪,谭菊,吴银菊,等.土壤重金属含量测定不同消解方法比较研究[J].中国环境监测,2013(1):123-126.
[15]范菲菲,阎献芳,周玮,等.不同前处理方式的ICP-MS法测定贵州省典型土壤中7种重金属元素[J].江苏农业科学,2016,44(1):329-332.
[16]聂容春,罗乐,王允雨,等.样品的消解方法对定量分析重金属元素的影响[J].河南农业科学,2012(11):74-77.
[17]王晓雯.不同酸消解方法在土壤重金属测定中的比较研究[J].中国环境管理干部学院学报,2014(6):66-68.
[18]方艳玲,方艳敏,张波.高氯酸在样品消解中的应用[J].中国热带医学,2005(09):1913-2018.
[19]潘乃寿,潘明琨.高氯酸在环境有机样品分解中的应用[J].中国环境监测,1988,2(1):47-49.
[20]孙颖,陈玲,赵建夫,等.测定城市生活污泥中重金属的酸消解方法研究[J].环境污染与防治,2004,26(3):170-172.
[21]Sastre J,Sahuquillo A,Vidal M,et al.Determination of Cd,Cu,Pb and Zn in environmental samples:Microwave-assisted total digestion versus aqua regia and nitric acid extraction[J].Analytica Chimica Acta,2002,462(1):59-72.
[22]梁宇雁.硝酸-氢氟酸-双氧水体系消解土壤中的重金属[J].广东化工,2017(8):58-59.
[23]饶宝娇.三酸溶解法和微波消解法测定土壤镉的方法对比及海南部分地区土壤镉含量调查[J].广东化工,2017,44(15):250-252.
[2]蔡立梅,马瑾,周永章,等.东莞市农业土壤重金属的空间分布特征及来源解析[J].环境科学,2008(12):3496-3502.
[3]罗娇赢,张思冲,辛蕊,等.哈尔滨市西郊菜地土壤重金属污染评价[J].中国农学通报,2009(20):279-282.
[4]温志良,莫大伦.土壤污染研究现状与趋势[J].重庆环境科学,2000,22(3):55-57.
[5]李玲.土壤污染特点现状以及监测技术浅析[J].黑龙江科技信息,2013(23):34.
[6]Freitas R,Pinto L,Sampaio M,et al.Effects of depuration on the element concentration in bivalves:Comparison between sympatric Ruditapes decussatus and Ruditapes philippinarum[J].Estuarine Coastal&Shelf Science,2012,110(10):43-53.
[7]张芙蕖,蒋晶晶.三种土壤消解方法的对比研究[J].环境科学与管理,2008(3):132-134.
[8]Zhang S,Cao X.Detection of heavy metal in soil with different digestion methods[J].Environmental Science&Technology,2004(s1):49-51.
[9]Wang X,Zhang Y,Lin N.Determination of heavy metal ions in soil by ICP-MS with microwave digestion[J].Chinese Journal of Spectroscopy Laboratory,2008,25(6):1183-1187.
[10]Tuzen M,Saygi K,Soylak M.Solid phase extraction of heavy metal ions in environmental samples on multiwalled carbon nanotubes[J].Journal of Hazardous Materials,2002,152(2):632-639.
[11]刘传娟,刘凤枝,蔡彦明,等.不同前处理方法-ICP-MS测定土壤中的重金属[J].分析试验室,2009(s1):91-94.
[12]Long J H,Tan J,Wu Y J,et al.A comparative study on the detection of heavy metal in soil with different digestion methods[J].Environmental Monitoring in China,2013,29(1):123-126.
[13]Zhao L,Song L H.Effects of different soil digestion methods on determination of heavy metals in standard samples[J].Shanxi Science&Technology,2017,32(4):41-43.
[14]龙加洪,谭菊,吴银菊,等.土壤重金属含量测定不同消解方法比较研究[J].中国环境监测,2013(1):123-126.
[15]范菲菲,阎献芳,周玮,等.不同前处理方式的ICP-MS法测定贵州省典型土壤中7种重金属元素[J].江苏农业科学,2016,44(1):329-332.
[16]聂容春,罗乐,王允雨,等.样品的消解方法对定量分析重金属元素的影响[J].河南农业科学,2012(11):74-77.
[17]王晓雯.不同酸消解方法在土壤重金属测定中的比较研究[J].中国环境管理干部学院学报,2014(6):66-68.
[18]方艳玲,方艳敏,张波.高氯酸在样品消解中的应用[J].中国热带医学,2005(09):1913-2018.
[19]潘乃寿,潘明琨.高氯酸在环境有机样品分解中的应用[J].中国环境监测,1988,2(1):47-49.
[20]孙颖,陈玲,赵建夫,等.测定城市生活污泥中重金属的酸消解方法研究[J].环境污染与防治,2004,26(3):170-172.
[21]Sastre J,Sahuquillo A,Vidal M,et al.Determination of Cd,Cu,Pb and Zn in environmental samples:Microwave-assisted total digestion versus aqua regia and nitric acid extraction[J].Analytica Chimica Acta,2002,462(1):59-72.
[22]梁宇雁.硝酸-氢氟酸-双氧水体系消解土壤中的重金属[J].广东化工,2017(8):58-59.
[23]饶宝娇.三酸溶解法和微波消解法测定土壤镉的方法对比及海南部分地区土壤镉含量调查[J].广东化工,2017,44(15):250-252.