Effect of the Surfactants on Atomization Efficiency of Lead Zinc Mineral Powder Suspension Determined by Atomic Spectrometry
-
摘要: 采用悬浮液进样进行原子光谱测定,可以减少样品前处理和不用酸碱化学试剂,是一种绿色化学的发展方向。本文采用表面张力仪对聚丙烯酸钠、聚氧化乙烯、六偏磷酸钠、柠檬酸三钠等表面活性剂与铅锌矿粉末组成悬浮液的表面张力进行测定,利用火焰原子吸收光谱法的雾化装置进行了雾化效率的考察和优化选择。随着表面活性剂浓度的增加,水溶液和悬浮液的雾化效率均增大,当达到一定浓度时,雾化效率增幅趋缓并达到最大值,不同表面活性剂具有不同变化趋势。对于聚氧化乙烯制备的悬浮液,在2 g/L浓度时具有最高的雾化效率;而聚丙烯酸钠在5 g/L浓度时具有更高的雾化效率,可达20%。表明表面活性剂能改善悬浮液的稳定性并提高雾化效率,可以应用于原子光谱的测定。Abstract: Suspension sampling Atomic Spectrometry is a developing green analytical method, due to the fact that there is a reduction in the sample pretreatment process and that the use of acid and alkali reagents is avoided, which would otherwised result in environmental pollution. The surface tension of suspension, including polyacrylic acid sodium, polyethylene oxide, sodium hexametaphoshpate and sodium citrate mixed with lead zinc mineral powder, was detected by a surface tension instrument. Simultaneously, the atomization efficiency was evaluated and optimized using atomizer in Flame Atomic Absorption Spectrometry (FAAS). The atomization efficiency of the aqueous solution and dispersants was enhanced with the increasing surfactants. The atomization efficiency was achieved using the maximum at specific concentration of surfactants. Different surfactants have different variation tendencies. The suspension prepared by polyethylene oxide with 2 g/L surfactant has the highest atomization efficiency. However, the suspension prepared by sodium polyacrylate with 5 g/L surfactant has higher atomization efficiency, which can even reach 20%, indicating that the surfactants can improve the stability of suspension and atomization efficiency and could be applied during analysis by Atomic Spectroscopy.
-
Key words:
- lead zinc ore /
- Atomic Spectrometry /
- surfactant /
- surface tension /
- atomization efficiency
-
-
[1] 孟时贤,邓飞跃,杨远,等.电感耦合等离子体发射光谱法测定铅锌矿中15个主次量元素[J].岩矿测试,2015,34(1):48-54.
Meng S X,Deng F Y,Yang Y,et al.Simultaneous Determination of 15 Elements in Lead-Zinc Ore by Inductively Coupled Plasma-Atomic Emission Spectrometry[J]. Rock and Mineral Analysis,2015,34(1):48-54.
[2] 文家波,商丹,宋婉虹,等.电感耦合等离子体发射光谱法测定铝土矿中镓-酸溶和碱熔预处理方法比较[J].岩矿测试,2011,30(4):481-485.
Wen J B,Shang D,Song W H,et al.Quantification of Gallium in Bauxites by Inductively Coupled Plasma-Atomic Emission Spectrometry-Comparison of Sample Pretreatment Methods between Alkali Fusion and Acid Dissolution[J].Rock and Mineral Analysis,2011,30(4):481-485.
[3] 刘春晓,刘英,藏慕文.悬浮液进样ICP-AES测定铝土矿中的铁、镁、硅、钙和钛[J].分析试验室,2004,23(3):34-36.
Liu C X,Liu Y,Zang M W.Analysis of Fe,Si,Mg,Ca,Ti in Bauxite Powders by a Slurry Sampling Inductively Coupled Plasma Atomic Emission Spectrometric Method[J].Analytical Laboratory,2004,23(3):34-36.
[4] 汪正,邱德仁,陶光仪,等.悬浮液雾化进样感耦等离子体基本参数研究Ⅰ.等离子体激发温度测定[J].光谱学与光谱分析,2009,29(3):793-796.
Wang Z,Qiu D R,Tao G Y,et al.Study of Fundamental Parameters of Inductively Coupled Plasma with Slurry Nebulization-Ⅰ.Excitation Temperature Determination[J].Spectroscopy and Spectral Analysis,2009,29(3):793-796.
[5] 钱建刚,吴锦屏,顾惕人.非离子表面活性剂的吸附机理和表面胶团化对二氧化硅悬浮液稳定性的影响[J].高等学校化学学报,1996,17(6):933-938.
Qian J G,Wu J P,Gu T R.The Mechanism of Adsorption of Nonionic Surfactants on CAB-O-SIL and the Effects of Surface Micellization on the Stability of Silica Suspension[J].Chemical Journal of Chinese Universities,1996,17(6):933-938.
[6] 王舜,赵振国,刘迎青,等.表面活性剂的吸附对在水中氧化铝微粉悬浮体稳定性的影响[J].北京大学学报(自然科学版),1988,34(6):735-740.
Wang S,Zhao Z G,Liu Y Q,et al.The Effect of Adsorption of Surfactants on Stability of Suspension of Alumina Powders[J].Acta Scientiarum Naturalium Universitatis Pekinensis,1988,34(6):735-740.
[7] 郇延富,郑健,冯国栋,等.等离子体原子光谱分析中溶液样品雾化进样方法的新进展[J].分析化学,2003,31(4):490-495.
Huan Y F,Zheng J,Feng G D,et al.New Advances in Solution Sample Introduction Methods for Plasma Atomic Spectrometry[J].Chinese Journal of Analytical Chemistry,2003,31(4):490-495.
[8] 金泽祥,艾军,郑毅,等.超声雾化和气动雾化在原子吸收光谱法和ICP发射光谱法中的性能比较[J].光谱学与光谱分析,1987,7(6):67-72.
Jin Z X,Ai J,Zheng Y,et al.Performance Comprison of Pneumatic and Ultrasonic Nebulisations in FAAS and ICP-AES[J].Spectroscopy and Spectral Analysis,1987,7(6):67-72.
[9] 汪正,邱德仁,陶光仪,等.悬浮液雾化进样感耦等离子体基本参数研究-Ⅱ等离子体电子密度测定[J].光谱学与光谱分析,2009,28(5):1402-1404.
Wang Z,Qiu D R,Tao G Y,et al.Study of Fundamental Parameters of Inductively Coupled Plasma for Slurry Nebulization-Ⅱ Electron Density Determination[J].Spectroscopy and Spectral Analysis,2009,28(5):1402-1404.
[10] 张军烨,汪正,杜一平,等.悬浮液进样电感耦合等离子体发射光谱中颗粒的输运和蒸发行为[J].分析化学,2011,39(5):658-663.
Zhang J Y,Wang Z,Du Y P,et al.Transportation and Evaporation Behavior of Suspension Particle for Slurry Nebulization Introduction in Inductively Coupled Plasma Optical Emission Spectrometry[J].Chinese Journal of Analytical Chemistry,2011,39(5):658-663.
[11] Parsons P J,Slavin W A.Rapid Zeeman Graphite Furnace Atomic Absorption Spectrometric Method for the Determination of Lead in Blood[J].Spectrochimica Acta Part B,1993,48B (6-7):925-928.
[12] Navarro J A,Granadillo V A,Parra O E,et al.Determination of Lead in Whole Blood by Graphite Furnace Atomic Absorption Spectrometry with Matrix Modification[J].Journal of Analytical Atomic Spectrometry,1989,4(5):401-406.
[13] 吴士定,周晓萍.石墨炉原子吸收法直接测定含盐调味品中铅[J].理化检验(化学分册),1997,33(1):27-28.
Wu S D,Zhou X P.Graphite Furnace Atomic Absorption Method of Direct Determination of Lead in Salt Seasoning[J].Physical Testing and Chemical Analysis (Part B:Chemical Analysis),1997,33(1):27-28.
[14] 周晓萍,吴士定.火焰原子吸收光谱法直接测定蜂蜜制品中锌[J].光谱学与光谱分析,1996,16(2):63-66.
Zhou X P,Wu S D.Direct Determination of Zine in the Product of Honey by FAAS[J].Spectroscopy and Spectral Analysis,1996,16(2):63-66.
[15] 刘光启,马连湘,刘杰编著.化学化工物性数据手册[M].北京:化学工业出版社,2002:380.
Liu G Q,Ma L X,Liu J.Chemistry and Chemical Properties Datasheet[M].Beijing:Chemical Industry Press,2002:380.
[16] 印永嘉编著.物理化学简明手册[M].北京:高等教育出版社,1988:336.
Yin Y J.Handbook of Physical Chemistry Data[M].Beijing:Higher Education Press,1988:336.
[17] 张悟铭,严正银,王俊德.火焰原子吸收光度法中表面活性剂作用的探讨[J].分析化学,1991,19(1):47-50.
Zhang W M,Yan Z Y,Wang J D.Effect of Surfactant on Flame Atomic Absorption Spectrometry[J].Chinese Journal of Analytical Chemistry,1991,19(1):47-50.
[18] 陈金忠,周永利,郭庆林,等.乙醇添加剂对ICP光源等离子体辐射的增强效应[J].光谱学与光谱分析,2008,28(1):183-187.
Chen J Z,Zhou Y L,Guo Q L,et al.Enhancing Effect of Ethanol Additive on the Plasma Emission in ICP Source[J].Spectroscopy and Spectral Analysis,2008,28(1):183-187.
-
下载:
图(3)
表(1)
计量
- 文章访问数: 1148
- PDF下载数: 7
- 施引文献: 0