轴向观测电感耦合等离子体原子发射光谱法测定天然纺织纤维中24种元素
|
摘要
应用轴向观测电感耦合等离子体原子发射光谱法测定了天然纺织纤维中24种元素的含量。称取样品0.5g,用硝酸8mL在程序升温(150℃~200℃)的条件下微波消解40min,所得溶液用7mol·L-1硝酸溶液定容至25mL后分析。选用棉纤维标准物质IAEA-V-9按上述方法处理作为质控样品。所选择的仪器工作条件:①雾化气流量0.8L·min-1;②射频功率1 250W;③手动进样读数时间60s。结果表明:24种元素的检出限(3s)在0.3~59.7μg·L-1之间。各元素在10.0mg·L-1范围内呈线性。样品经微波消解未引起被测元素的损失。用此方法分析了IAEA-V-9标准物质,所测14种元素的测定值(n=11)与认定值之间的相对误差在-38.8%~49.6%之间。
Axially viewed ICP-AES was applied to the determination of 24 elements in natural textile fibre.The sample(0.5g)was taken and digested in a microwave digestor with 8mL of HNO3 under the temperature elevation program from 150℃ to 200℃ for a total of 40min.The digested solution was made up to a volume of 25mL with 7mol·L-1 HNO3 solution,and used for ICP-AES analysis.A CRM of cotton fibre(IAEA-V-9)was treated in the same way as the sample and used as a quality-control sample.Working conditions of the instrument were chosen as follows:①flow-rate of nebulizer gas:0.8L·min-1;② RF power:1 250W;and③time interval of reading with manual sample injection:60s.It was found that:values of detection limits(3s)for the 24elements were found in the range of 0.3 to 59.7μg·L-1;linearity ranges were kept within 10.0mg·L-1 for each of the elements;no loss of analytic elements was observed during the process of microwave assisted sample digestion;in the analysis of the CRM IAEA-V-9 by this method,values of relative error(n=11)of 14elements determined found were ranged from -38.8% to 49.6%.
Axially viewed ICP-AES was applied to the determination of 24 elements in natural textile fibre.The sample(0.5g)was taken and digested in a microwave digestor with 8mL of HNO3 under the temperature elevation program from 150℃ to 200℃ for a total of 40min.The digested solution was made up to a volume of 25mL with 7mol·L-1 HNO3 solution,and used for ICP-AES analysis.A CRM of cotton fibre(IAEA-V-9)was treated in the same way as the sample and used as a quality-control sample.Working conditions of the instrument were chosen as follows:①flow-rate of nebulizer gas:0.8L·min-1;② RF power:1 250W;and③time interval of reading with manual sample injection:60s.It was found that:values of detection limits(3s)for the 24elements were found in the range of 0.3 to 59.7μg·L-1;linearity ranges were kept within 10.0mg·L-1 for each of the elements;no loss of analytic elements was observed during the process of microwave assisted sample digestion;in the analysis of the CRM IAEA-V-9 by this method,values of relative error(n=11)of 14elements determined found were ranged from -38.8% to 49.6%.
引文
[1]ARRU L,ROGNONI S,BARONCINI M,et al.Copper iocation in cannabis sativa L.grown in a copperrich solution[J].Euphytica,2004,140:33-38.
[2]BRUSHWOOD D E.Effects of raw cotton noncellulosic content and fiber rotor ring friction on yarn ring spinning performance[J].Applied Engineering in Agriculture,2004,20(4):32-35.
[3]BRUSHWOOD D E.Changes in non-fibrous material content of cotton during yarn processing[J].Textile Research Journal,2005,75(8):616-621.
[4]REZIC I,BOKIC L,HORVAT A J M.TLC separation and identification of heavy metals present in cotton material[J].Journal of Planar Chromatography,2004,17(4):305-308.
[5]The International Association for Research and Testing in the field of Textile Ecology.eko-Tex Standard100,2013[S].
[6]SILVA F V,TREVIZAN L C,SILVA C S,et al.Evaluation of inductively coupled plasma optical emission spectrometers with axially and radially viewed configurations[J].Spectrochimica Acta Part B,2002,57(12):1905-1913.
[7]BRENNER I B,ZANDER A T.Axially and radially viewed inductively coupled plasmasa critical review[J].Spectrochimica Acta Part B,2000,55(8):1195-1240.
[8]CHAN G C Y,CHAN W T.Plasma-related matrix effects in inductively coupled plasma-atomic emission spectrometry by groupⅠand groupⅡmatrix-elements[J].Spectrochimica Acta Part B,2003,58(7):1301-1317.
[9]庞晋山,黄刚,邓爱华,等.电感耦合等离子体原子发射光谱分析中易电离元素的基体干扰及其抑制的研究[J].理化检验-化学分册,2012,48(6):671-677.
[10]王彦芬,张绪宏,傅惠敏,等.纯棉纺织品中八大痕量重金属元素ICP-AES分析方法研究[J].南开大学学报,2007,40(5):7-10.
[2]BRUSHWOOD D E.Effects of raw cotton noncellulosic content and fiber rotor ring friction on yarn ring spinning performance[J].Applied Engineering in Agriculture,2004,20(4):32-35.
[3]BRUSHWOOD D E.Changes in non-fibrous material content of cotton during yarn processing[J].Textile Research Journal,2005,75(8):616-621.
[4]REZIC I,BOKIC L,HORVAT A J M.TLC separation and identification of heavy metals present in cotton material[J].Journal of Planar Chromatography,2004,17(4):305-308.
[5]The International Association for Research and Testing in the field of Textile Ecology.eko-Tex Standard100,2013[S].
[6]SILVA F V,TREVIZAN L C,SILVA C S,et al.Evaluation of inductively coupled plasma optical emission spectrometers with axially and radially viewed configurations[J].Spectrochimica Acta Part B,2002,57(12):1905-1913.
[7]BRENNER I B,ZANDER A T.Axially and radially viewed inductively coupled plasmasa critical review[J].Spectrochimica Acta Part B,2000,55(8):1195-1240.
[8]CHAN G C Y,CHAN W T.Plasma-related matrix effects in inductively coupled plasma-atomic emission spectrometry by groupⅠand groupⅡmatrix-elements[J].Spectrochimica Acta Part B,2003,58(7):1301-1317.
[9]庞晋山,黄刚,邓爱华,等.电感耦合等离子体原子发射光谱分析中易电离元素的基体干扰及其抑制的研究[J].理化检验-化学分册,2012,48(6):671-677.
[10]王彦芬,张绪宏,傅惠敏,等.纯棉纺织品中八大痕量重金属元素ICP-AES分析方法研究[J].南开大学学报,2007,40(5):7-10.