电感耦合等离子体发射光谱法间接测定石灰岩矿中游离二氧化硅含量
|
摘要
建立电感耦合等离子体发射光谱法测定石灰岩矿中游离二氧化硅含量。将石灰岩矿样品置于聚四氟乙烯塑料烧杯中,用磷酸于300℃溶解,然后用电感耦合等离子体发射光谱法测定磷酸溶液中的二氧化硅含量。用石灰岩矿样品中的二氧化硅总含量扣除磷酸溶液中的二氧化硅含量得到石灰岩矿中游离二氧化硅的含量。使用基体匹配法校正基体的干扰。测定结果的相对标准偏差为3.08%(n=9),3种标准物质中二氧化硅含量测定值与标准值基本一致。该法操作简单,快速,高效,适用于测定大批量石灰石矿样品中游离二氧化硅的含量,能够满足地质规范要求。
The method was established for determining the content of free silica in limestone ore by inductively coupled plasma atomic emission spectrometry. The limestone ore sample was put in polytetra?uoroethylene(PTFE) plastic beaker, and dissolved by phosphoric acid at 300 ℃, and then the amount of silica in the phosphoric acid solution was determined by inductively coupled plasma emission spectrometry. The content of free silica in limestone ore was indirectly obtained by subtracting the amount of silicon dioxide in the phosphoric acid solution from the total silica content in limestone samples. Matrix matching was used to correct the interference of the matrix. The relative standard deviation of the detection datas was 3.08%(n=9), and the determination results of three certi?ed reference materials were consistent with the standard values. The method is simple in operation, rapid and ef?cient, and it is suitable for the determination of free silica in large quantities of limestone samples.
The method was established for determining the content of free silica in limestone ore by inductively coupled plasma atomic emission spectrometry. The limestone ore sample was put in polytetra?uoroethylene(PTFE) plastic beaker, and dissolved by phosphoric acid at 300 ℃, and then the amount of silica in the phosphoric acid solution was determined by inductively coupled plasma emission spectrometry. The content of free silica in limestone ore was indirectly obtained by subtracting the amount of silicon dioxide in the phosphoric acid solution from the total silica content in limestone samples. Matrix matching was used to correct the interference of the matrix. The relative standard deviation of the detection datas was 3.08%(n=9), and the determination results of three certi?ed reference materials were consistent with the standard values. The method is simple in operation, rapid and ef?cient, and it is suitable for the determination of free silica in large quantities of limestone samples.
引文
[1]宁智全,王水岸.高游离二氧化硅石灰石对熟料产质量的影响[J].中国水泥,2013(5):89-91.
[2]胡庆福.纳米级碳酸钙生产与应用[M].北京:化学工业出版社,2004:1-2.
[3]GB/T 5762-2000建材用石灰石化学分析方法[S].
[4]GB/T 14840-2010石灰岩化学分析方法游离二氧化硅量测定[S].
[5]GB/T 5762-2012建材用石灰石、生石灰和熟石灰化学分析方法[S].
[6]韩秀卿.石灰岩中游离二氧化硅化学物相分析方法的标准化研究[J].岩矿测试,2000,19(4):259-263.
[7]北京矿冶研究院.化学物相分析[M].北京:冶金工业出版社,1979:219-222.
[8]高银香,龚银春.石灰岩中游离二氧化硅测定方法的改进探讨[J].广东科技,2013,22(12):254-254
[9]席进萍,沈燕君,温明慧.岩石矿物及粉尘中游离二氧化硅的测定[J].岩矿测试,2002,21(1):71-73.
[10]刘艳玲.磷酸溶解重量法测定石灰岩中游离二氧化硅[J].黑龙江科技信息,2011,31:23.
[11]龚丽芳.矿石中游离二氧化硅的测定方法研究[J].世界有色金属,2018(4):291-292.
[12]牛改玲.磷酸溶解灰岩中游离二氧化硅测试方法的改进与讨论[J].中国非金属矿工业导刊,2017(4):20-21,25.
[13]邝秀芳,黄玲,林越华.游离二氧化硅及其在石灰岩工业中的测定方法[J].科技创新导报,2013,34:74-74.
[14]吴文毅,汪思顺,邬丽,等.焦磷酸法测定游离二氧化硅含量方法改进[J].微量元素与健康研究,2015,32(2):54-56.
[15]肖瑞芬.焦磷酸法测定粉尘中游离二氧化硅含量的分析[J].化学工程与装备,2016(5):245-246.
[16]区洁芬.关于焦磷酸法测定游离二氧化硅方法的改进[J].化工管理,2018(10):36-37.
[17]沈利荣.红外分光光度法测定粉尘中游离二氧化硅的含量探析[J].硅谷,2014(4):88-89.
[18]罗建民,冯敏.红外光谱法定量测定石灰岩中游离二氧化硅[J].岩矿测试,1988,7(3):199-202.
[19]李昆,王文宝.云母矿粉中游离二氧化硅含量的快速测定[J].分析仪器,2014(2):43-46.
[20]GB/T 3286.2-2014石灰石及白云岩化学分析方法二氧化硅量测定硅钼蓝分光光度法和高氯酸脱水重量法[S].
[2]胡庆福.纳米级碳酸钙生产与应用[M].北京:化学工业出版社,2004:1-2.
[3]GB/T 5762-2000建材用石灰石化学分析方法[S].
[4]GB/T 14840-2010石灰岩化学分析方法游离二氧化硅量测定[S].
[5]GB/T 5762-2012建材用石灰石、生石灰和熟石灰化学分析方法[S].
[6]韩秀卿.石灰岩中游离二氧化硅化学物相分析方法的标准化研究[J].岩矿测试,2000,19(4):259-263.
[7]北京矿冶研究院.化学物相分析[M].北京:冶金工业出版社,1979:219-222.
[8]高银香,龚银春.石灰岩中游离二氧化硅测定方法的改进探讨[J].广东科技,2013,22(12):254-254
[9]席进萍,沈燕君,温明慧.岩石矿物及粉尘中游离二氧化硅的测定[J].岩矿测试,2002,21(1):71-73.
[10]刘艳玲.磷酸溶解重量法测定石灰岩中游离二氧化硅[J].黑龙江科技信息,2011,31:23.
[11]龚丽芳.矿石中游离二氧化硅的测定方法研究[J].世界有色金属,2018(4):291-292.
[12]牛改玲.磷酸溶解灰岩中游离二氧化硅测试方法的改进与讨论[J].中国非金属矿工业导刊,2017(4):20-21,25.
[13]邝秀芳,黄玲,林越华.游离二氧化硅及其在石灰岩工业中的测定方法[J].科技创新导报,2013,34:74-74.
[14]吴文毅,汪思顺,邬丽,等.焦磷酸法测定游离二氧化硅含量方法改进[J].微量元素与健康研究,2015,32(2):54-56.
[15]肖瑞芬.焦磷酸法测定粉尘中游离二氧化硅含量的分析[J].化学工程与装备,2016(5):245-246.
[16]区洁芬.关于焦磷酸法测定游离二氧化硅方法的改进[J].化工管理,2018(10):36-37.
[17]沈利荣.红外分光光度法测定粉尘中游离二氧化硅的含量探析[J].硅谷,2014(4):88-89.
[18]罗建民,冯敏.红外光谱法定量测定石灰岩中游离二氧化硅[J].岩矿测试,1988,7(3):199-202.
[19]李昆,王文宝.云母矿粉中游离二氧化硅含量的快速测定[J].分析仪器,2014(2):43-46.
[20]GB/T 3286.2-2014石灰石及白云岩化学分析方法二氧化硅量测定硅钼蓝分光光度法和高氯酸脱水重量法[S].