木娜瓦尔·艾合买提,艾尔肯·依不拉音

• 1:新疆医科大学药学院
• 2:新疆医科大学中心实验室

摘要(Abstract)：

目的采用在线富集流动注射-光纤传感光度法测定水样品中Cr(VI)的含量。方法以0.50mol/L的硝酸溶液为洗脱液,0.16mol/L的二苯基碳酰二肼溶液为显色剂,1.0×10~(-5) mol/L的硝酸铈溶液为沉淀剂,反应管长度1.50m,样品-试剂-沉淀剂的进样速度为2.00 mL/min,富集时间为30 min,检测波长为545nm。结果回归方程为:Y=0.244 8 X+0.024 7,线性范围:0.05~0.50μg/L(r2=0.998 9),相对标准偏差RSD为1.5%,检测限为0.009 8μg/L,回收率为98.3%,自来水、甜驰桶装水、雪白真桶装水、渃减瓶装水、农夫山泉瓶装水、娃哈哈瓶装水、纯水乐瓶装水、爱夸瓶装水水样品中Cr(VI)含量分别为0.852、0.240、0.185、0.071、0.141、0.163、0.051、0.104μg/L。结论方法灵敏度高,样品在线分析无需前处理,适用于水样品中Cr(VI)的含量测定。

关键词(KeyWords)： 流动注射;PTFE滤膜沉淀富集;流通池;水样中Cr(VI)

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(21162030)

作者(Author): 木娜瓦尔·艾合买提,艾尔肯·依不拉音

参考文献(References)：

• [1]张吟,张丹梅,吴惠忠,等.饮水暴露六价铬对人群健康的危害分析[J].中华地方病学杂志,2016,35(4):264-268.
• [2]陈智飞,易碧华,李达光,等.测定废水中六价铬的研究进展[J].广州化工,2016,44(7):42-43.
• [3]金立方,袁翊朦,胡祎瑞,等.六价铬的细胞毒理效应及其机制研究进展[J].中国细胞生物学学报,2013,35(3):387-392.
• [4]张吟,张丹梅,吴惠忠,等.饮水暴露六价铬对人群健康的危害分析[J].中华地方病学杂志,2016,35(4):264-268.
• [5]赖永忠.减小水样浊度对废水中六价铬测定结果影响的方法探讨[J].岩矿测试,2012,31(1):172-177.
• [6]HE D,ZHENG M,MA T,et al.Nitrite interference and elimination in diphenylcarbazide(DPCI)spectrophotometric determination of hexavalent chromium.[J].Water Science Technology,2015,72(2):223-229.
• [7]王亚鸽.液液萃取-火焰原子吸收光谱法测定环境样品中不同形态锌、镉、铬[D].郑州:郑州大学,2012.
• [8]MARGARITA V T,DIRCE P,RAFAELI H G,et al.Methodology for the determination of stoichiometry and metal impurities in new PZT ceramics by inductively coupled plasma optical spectrometry(ICP OES)[J].Spectroscopy Letters,2011,44(2):138-145.
• [9]KAMAKURA N,INUI T,KITANO M,et al.Determination of Chromium(III),Chromium(VI),and Chromium(III)acetylacetonate in water by ion-exchange disk extraction/metal furnace atomic absorption spectrometry[J].Spectrochimica Acta Part B Atomic Spectroscopy,2014,39(2):28-33.
• [10]GONCALVEA D A,GU J,SANTOS M C D,et al.Direct determination of Chromium in empty medicine capsules by tungsten coil atomic emission spectrometry[J].Journal of Analytical Atomic Spectrometry,2015,30(6):1395-1399.
• [11]BAHADIR Z,BULUT V N,HIDALGO M,et al.Determination of trace amounts of hexavalent chromium in drinking waters by dispersive microsolid-phase extraction using modified multiwalled carbon nanotubes combined with total reflection X-ray fluorescence spectrometry[J].Spectrochimica Acta Part B Atomic Spectroscopy,2015,40(3):170-177.
• [12]CATALANI S,FOSTINELLI J,GILBERTIM E,et al.Application of a metal free high performance liquid chromatography with inductively coupled plasma mass spectrometry(HPLC-ICP-MS)for the determination of chromium species in drinking and tap water[J].International Journal of Mass Spectrometry,2015,387(6):31-37.
• [13]陈丽琼,霍巨垣,王欣,等.六价铬测定方法研究进展[J].理化检验-化学分册,2015,51(8):1208-1212.
• [14]洪陵成,张红艳,王艳,等.流动注射分析在环境水质重金属检测中的应用进展[J].化学分析计量,2010,19(4):90-92.